Providers Michael O'Dowd, PHARMD to Julie O'Gara, FNP
300 individual NPIs in the federal registry, part 16,028 of 24,427 of the A to Z by surname. Each row is the registry's record: the name and credential, the NPI, the primary specialty, the practice city and the year the NPI was issued. 90 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Michael O'Dowd, PHARMD | 1992863930 | Pharmacist | Stony Point, NY | 2006 |
| Nancy O'Dowd, APN | 1831303015 | Adult Psychiatric/Mental Health Registered Nurse | Cherry Hill, NJ | 2007 |
| Nolan O'Dowd, MD | 1306342324 | Public Health & General Preventive Medicine Physician | Baltimore, MD | 2018 |
| Patrick O'Dowd | 1619816816 | Student in an Organized Health Care Education/Training Program | Marietta, GA | 2026 |
| Ryan O'Dowd, CRNA | 1700255411 | Certified Registered Nurse Anesthetist | Ann Arbor, MI | 2015 |
| Sadie O'Dowd, M.S. CF-SLP | 1336953686 | Speech-Language Pathologist | Jackson, MI | 2025 |
| Salem O'Dowd | 1730011727 | Behavior Technician | Brooklyn, NY | 2026 |
| Samantha O'Dowd | 1235965815 | Social Worker | Ann Arbor, MI | 2024 |
| Sara O'Dowd | 1134537285 | Developmental Therapist | Grayslake, IL | 2014 |
| Shelby O'Dowd | 1487176780 | Physical Therapist | Liberty, MO | 2017 |
| Stacy O'Dowd, M.D. | 1700853082 | Family Medicine Physician | Gainesville, FL | 2006 |
| Ted O'Dowd, RDN | 1881352011 | Registered Dietitian | Kerrville, TX | 2021 |
| Thomas O'Dowd, M.D. | 1598736423 | Orthopaedic Surgery Physician | Voorhees, NJ | 2006 |
| Timothy O'Dowd | 1598260465 | Internal Medicine Physician | Lebanon, NH | 2018 |
| Wararat O'Dowd | 1689968950 | Pharmacist | Christiansburg, VA | 2011 |
| Wendie O'Dowd, MA LMHCA MHP | 1174866222 | Mental Health Counselor | Seattle, WA | 2013 |
| William O'Dowd, PH.D. | 1497837041 | Clinical Neuropsychologist | Minneapolis, MN | 2006 |
| Timothy O'Doyle | 1245583301 | Chiropractor | Marysville, WA | 2012 |
| Kristine O'Drain, OTR, CHT | 1780653691 | Hand Occupational Therapist | Camden, NJ | 2006 |
| Lillian O'Drain, PA-C | 1992954820 | Physician Assistant | Fort Myers, FL | 2008 |
| Alice O'Driscoll | 1093220212 | Counselor | Taylorsville, UT | 2017 |
| Allison O'Driscoll, PAC | 1982581443 | Physician Assistant | Omaha, NE | 2025 |
| Alyssa O'Driscoll | 1356226138 | Student in an Organized Health Care Education/Training Program | University Park, PA | 2025 |
| Carter O'Driscoll | 1447916846 | Occupational Therapist | Pittsfield, MA | 2021 |
| Cassidy O'Driscoll, MS, SLP - CF | 1225809007 | Speech-Language Pathologist | South Hadley, MA | 2024 |
| Chaelene O'Driscoll, IBCLC | 1255101689 | Lactation Consultant (Non-RN) | Denver, CO | 2024 |
| Ciara O'Driscoll, DO | 1518596717 | General Practice Physician | Oak Harbor, WA | 2020 |
| Elizabeth O'Driscoll | 1699548677 | Developmental Therapist | Canton, MA | 2023 |
| Ilona O'Driscoll | 1487809802 | Home Health Registered Nurse | New Berlin, WI | 2008 |
| James O'Driscoll | 1194069476 | Mental Health Counselor | Oakland, CA | 2012 |
| Janice O'Driscoll | 1073748885 | Mental Health Counselor | Gainesville, FL | 2009 |
| Jessica O'Driscoll | 1053846428 | Psychiatric/Mental Health Nurse Practitioner | Springfield, PA | 2017 |
| Joan O'Driscoll | 1336484732 | Specialist | Verona, NJ | 2012 |
| John O'Driscoll, DPT | 1326322967 | Physical Therapist | Winchester, TN | 2011 |
| Justin O'Driscoll | 1730788696 | Pharmacist | Onalaska, WI | 2020 |
| Kate O'Driscoll | 1912274952 | Behavior Analyst | Arlington Heights, IL | 2011 |
| Kayla O'Driscoll | 1255929659 | Speech-Language Pathologist | New York, NY | 2021 |
| Kelly O'Driscoll, MD | 1285831206 | Family Medicine Physician | Telford, PA | 2007 |
| Kelsey O'Driscoll, CCC-SLP | 1023876844 | Speech-Language Pathologist | Scottsdale, AZ | 2024 |
| Kimberlain O'Driscoll, LPN | 1487955563 | Licensed Practical Nurse | Bronx, NY | 2010 |
| Kristen O'Driscoll | 1033674239 | Speech-Language Pathologist | Cincinnati, OH | 2019 |
| Kylie O'Driscoll, LAMFT | 1255985065 | Marriage & Family Therapist | Atlanta, GA | 2019 |
| Leo O'Driscoll | 1619496254 | Case Manager/Care Coordinator | Chula Vista, CA | 2017 |
| Lisa O'Driscoll, CRNA | 1780114850 | Certified Registered Nurse Anesthetist | Bremerton, WA | 2017 |
| Michaela O'Driscoll, MD | 1114505328 | Emergency Medicine Physician | Bronx, NY | 2021 |
| Molly O'Driscoll, LPC | 1023732336 | Professional Counselor | Westerville, OH | 2022 |
| Patricia O'Driscoll, PT, DPT | 1093219875 | Physical Therapist | Avondale, AZ | 2018 |
| Patricia O'Driscoll, RNFA | 1306926167 | Registered Nurse First Assistant | Jupiter, FL | 2006 |
| Patricia O'Driscoll, RN | 1578150926 | Registered Nurse | Grosse Ile, MI | 2020 |
| Shawn O'Driscoll, M.D. | 1952388324 | Orthopaedic Surgery Physician | Rochester, MN | 2005 |
| Stephen O'Driscoll, OD | 1588143358 | Optometrist | Pearland, TX | 2018 |
| Sue O'Driscoll, PT, DPT | 1710220165 | Physical Therapist | Miami, FL | 2013 |
| Tristan O'Driscoll, PHARMD, MPH | 1962337444 | Infectious Diseases Pharmacist | Milwaukee, WI | 2026 |
| Victoria O'Driscoll | 1811795230 | Clinical Social Worker | Redondo Beach, CA | 2025 |
| Shannon O'Driscoll-Douglas, LPC | 1700478427 | Professional Counselor | Troy, MO | 2021 |
| Simone O'Drobinak, PA | 1396833950 | Physician Assistant | Toledo, OH | 2006 |
| Christopher O'Droski, M.A. | 1124553961 | Addiction (Substance Use Disorder) Counselor | Livonia, MI | 2017 |
| Samantha O'Droski | 1235943978 | Counselor | Southgate, MI | 2025 |
| J. Desmond O'Duffy, MD | 1588636153 | Rheumatology Physician | Sarasota, FL | 2006 |
| Erin O'Duggan | 1154587293 | Speech-Language Pathologist | Cohasset, MA | 2008 |
| Lauren O'Duin, CNM | 1891147294 | Advanced Practice Midwife | Portland, OR | 2016 |
| Patrick O'Dunne, CRNA | 1346691524 | Certified Registered Nurse Anesthetist | Camden, NJ | 2016 |
| Jacqueline O'Duor, LCSW | 1790033520 | Clinical Social Worker | Philadelphia, PA | 2012 |
| Ashley O'Dwyer, OD | 1639606700 | Optometrist | Wasilla, AK | 2017 |
| Austin O'Dwyer | 1740041284 | Student in an Organized Health Care Education/Training Program | Leavenworth, KS | 2024 |
| Barbara O'Dwyer | 1922987726 | Mental Health Counselor | Thornton, CO | 2025 |
| Darla O'Dwyer, DT | 1447475298 | Metabolic Nutrition Registered Dietitian | Nacogdoches, TX | 2007 |
| David O'Dwyer, MB BCH PHD | 1699172676 | Pulmonary Disease Physician | Ann Arbor, MI | 2014 |
| Elisabeth O'Dwyer, MBBCHBAO | 1447801808 | Diagnostic Radiology Physician | New York, NY | 2019 |
| Jacenda O'Dwyer, PA-C | 1023934510 | Physician Assistant | Greenwood Village, CO | 2026 |
| Jacqueline O'Dwyer | 1891670246 | Social Worker | Bronx, NY | 2025 |
| James O'Dwyer, D.C. | 1568797546 | Chiropractor | Liberty, MO | 2009 |
| Jay O'Dwyer, RPH | 1093114258 | Pharmacist | Fairhaven, MA | 2014 |
| Jeremiah O'Dwyer | 1811324312 | General Practice Dentistry | Manchester, CT | 2013 |
| Jessica O'Dwyer, RD | 1861289183 | Registered Dietitian | Thornton, CO | 2025 |
| John O'Dwyer, R.PH. | 1114068624 | Nutrition Support Pharmacist | Aurora, IL | 2007 |
| Joseph O'Dwyer, M.D. | 1992815963 | Internal Medicine Physician | Houston, TX | 2006 |
| Katherine O'Dwyer | 1609151505 | Professional Counselor | Philadelphia, PA | 2011 |
| Kristen O'Dwyer, M.D. | 1417286501 | Hematology (Internal Medicine) Physician | Rochester, NY | 2009 |
| Kristen O'Dwyer, LCSW | 1447672191 | Clinical Social Worker | San Diego, CA | 2014 |
| Laura O'Dwyer, M.S., CCC-SLP | 1356482863 | Behavior Analyst | Coral Springs, FL | 2007 |
| Leah O'Dwyer, PA | 1629322318 | Physician Assistant | Baton Rouge, LA | 2012 |
| Lucy O'Dwyer | 1033980362 | Marriage & Family Therapist | San Rafael, CA | 2024 |
| Madison O'Dwyer | 1336732064 | Physical Medicine & Rehabilitation Physician | Rockwall, TX | 2021 |
| Marie Claire O'Dwyer, MB BCH BAO | 1932619798 | Internal Medicine Physician | Ann Arbor, MI | 2017 |
| Mark O'Dwyer, LPC | 1013258763 | Professional Counselor | Bala Cynwyd, PA | 2013 |
| Mary O'Dwyer, M.D. | 1144424433 | Family Medicine Physician | San Diego, CA | 2007 |
| Mary O'Dwyer, PA | 1659930295 | Physician Assistant | Dorchester, MA | 2019 |
| Michael O'Dwyer, PT, DPT | 1861286882 | Physical Therapist | Newcastle, OK | 2025 |
| Molly O'Dwyer, BS | 1376579995 | Social Worker | Cov, KY | 2006 |
| Nancy O'Dwyer | 1073347217 | Specialist | Massapequa, NY | 2024 |
| Peter O'Dwyer, MD | 1053482125 | Medical Oncology Physician | Philadelphia, PA | 2006 |
| Philip O'Dwyer, ED.D, CSW, CACII | 1205037850 | Clinical Social Worker | Garden City, MI | 2007 |
| Rebecca O'Dwyer, M.D. | 1093004491 | Neurology Physician | Chicago, IL | 2011 |
| Regina O'Dwyer, MA, CCC-SLP | 1699918557 | Speech-Language Pathologist | Bronxville, NY | 2009 |
| Rita O'Dwyer, DDS | 1114450327 | Endodontics | Stony Brook, NY | 2017 |
| Sean O'Dwyer | 1386008043 | Mental Health Counselor | Long Beach, CA | 2016 |
| Serena O'Dwyer, CD(DONA) | 1982918165 | Doula | Stanwood, WA | 2010 |
| Sharon O'Dwyer, APNP | 1821042458 | Family Nurse Practitioner | Milwaukee, WI | 2006 |
| Sinead O'Dwyer | 1659000883 | Physical Therapist | Florence, MT | 2022 |
| Siobhan O'Dwyer | 1609321322 | Pharmacist | Bronx, NY | 2016 |
| Victoria O'Dwyer | 1407547250 | Social Worker | New York, NY | 2023 |
| Deanna O'Dwyer-Swensen, D.C. | 1861579195 | Chiropractor | Melrose, MA | 2006 |
| Amy O'Fallon | 1518841410 | Personal Care Attendant | Bellevue, NE | 2025 |
| Ann O'Fallon, MA, LP | 1952767311 | Psychologist | Minneapolis, MN | 2016 |
| Bridget O'Fallon | 1932978053 | Behavior Technician | Marlborough, MA | 2023 |
| Catherine O'Fallon, RN/NP | 1396722062 | Pediatric Nurse Practitioner | Kansas City, MO | 2005 |
| Celia O'Fallon | 1508334434 | Speech-Language Pathologist | Frederick, MD | 2018 |
| Cindy O'Fallon | 1275676264 | Pharmacist | Wheat Ridge, CO | 2007 |
| Eric O'Fallon, DPT | 1922305424 | Physical Therapist | Everett, WA | 2011 |
| Erin O'Fallon, M.D. M.P.H. | 1801853205 | Geriatric Medicine (Internal Medicine) Physician | Boston, MA | 2006 |
| Gayla O'Fallon, LPC, MAC | 1336634450 | Addiction (Substance Use Disorder) Counselor | Evergreen, CO | 2018 |
| Ian O'Fallon, CNIM | 1891187076 | Electroneurodiagnostic Specialist/Technologist | Waller, TX | 2015 |
| Jamie O'Fallon, DPT | 1548507718 | Physical Therapist | Temecula, CA | 2013 |
| Jessen O'Fallon | 1730827452 | Behavior Technician | Minneapolis, MN | 2022 |
| Kathy O'Fallon, PSY.D. | 1851325567 | Psychologist | Fallbrook, CA | 2006 |
| Leia O'Fallon, ANP | 1477269306 | Obstetrics & Gynecology Nurse Practitioner | Monticello, AR | 2023 |
| Mary O'Fallon, CNRN, CNP | 1982643524 | Adult Health Nurse Practitioner | Hutchinson, MN | 2006 |
| Michele O'Fallon, M.D. | 1902877251 | Specialist | Anchorage, AK | 2006 |
| Peter O'Fallon, ATC/LAT | 1104200179 | Athletic Trainer | Destin, FL | 2015 |
| Salem O'Fallon | 1215733647 | Personal Care Attendant | Papillion, NE | 2025 |
| Alley O'Farrell, PA | 1427664184 | Surgical Physician Assistant | Poughkeepsie, NY | 2020 |
| Amanda O'Farrell | 1487507760 | Behavior Technician | Hilo, HI | 2026 |
| Amanda O'Farrell, RN | 1851940845 | Medical-Surgical Registered Nurse | Grand Island, NY | 2019 |
| Amber O'Farrell, FNP-C | 1982552774 | Family Nurse Practitioner | Peoria, AZ | 2026 |
| Breanna O'Farrell, PMHNP | 1689421745 | Psychiatric/Mental Health Nurse Practitioner | Juneau, AK | 2024 |
| Breeze O'Farrell, LMSW | 1467268896 | Social Worker | Baltimore, MD | 2024 |
| Candelaria O'Farrell, MD | 1093373961 | Pediatric Hematology & Oncology Physician | Houston, TX | 2019 |
| Caroline O'Farrell, CRNA | 1750266037 | Certified Registered Nurse Anesthetist | Dallas, TX | 2025 |
| Cathleen O'Farrell, M.D. | 1942248976 | Family Medicine Physician | Klamath Falls, OR | 2006 |
| Cecelia O'Farrell, LPC,RPT | 1992960397 | Mental Health Counselor | Morehead City, NC | 2008 |
| Chelsea O'Farrell | 1598184814 | Mental Health Counselor | McMinnville, OR | 2014 |
| Desiree O'Farrell | 1336021765 | Pharmacotherapy Pharmacist | Milbank, SD | 2025 |
| Devon O'Farrell, DC | 1205702784 | Chiropractor | McKinney, TX | 2025 |
| Elizabeth O'Farrell, MS, OTRL | 1437274008 | Occupational Therapist | Boston, MA | 2007 |
| Erin O'Farrell, AMFT | 1003676925 | Marriage & Family Therapist | Los Osos, CA | 2024 |
| Erin O'Farrell | 1023827680 | Student in an Organized Health Care Education/Training Program | Indianapolis, IN | 2025 |
| Fiachra O'Farrell | 1164279444 | Developmental Therapist | Milford, MA | 2024 |
| Fiona O'Farrell, M.A., L.M.F.T. | 1750702817 | Marriage & Family Therapist | Seattle, WA | 2013 |
| Heather O'Farrell, MA, LLPC | 1043826043 | Professional Counselor | Midland, MI | 2020 |
| Irene O'Farrell, MD | 1730267238 | Obstetrics & Gynecology Physician | Sacramento, CA | 2006 |
| Ivan O'Farrell | 1245830918 | Mental Health Counselor | Chelsea, MA | 2020 |
| James O'Farrell, M.S., QMHP, LPC | 1023417276 | Professional Counselor | Redmond, OR | 2014 |
| Jamie O'Farrell, FNP-BC | 1437604592 | Family Nurse Practitioner | Appleton City, MO | 2016 |
| Jean O'Farrell, RN/NP | 1003840331 | Nurse Practitioner | Tewksbury, MA | 2006 |
| John O'Farrell, P.T. | 1730128554 | Physical Therapist | Bronx, NY | 2006 |
| Justin O'Farrell, DO | 1730882309 | Student in an Organized Health Care Education/Training Program | Lebanon, NH | 2023 |
| Kate O'Farrell, FNP-C | 1750053526 | Nurse Practitioner | Valparaiso, IN | 2021 |
| Kathleen O'Farrell, LCSW | 1013213727 | Clinical Social Worker | Portland, OR | 2011 |
| Kathleen O'Farrell, M.D. | 1265541197 | Colon & Rectal Surgery Physician | San Diego, CA | 2006 |
| Kaylee O'Farrell, RN | 1326868753 | Emergency Registered Nurse | Indianapolis, IN | 2024 |
| Kevin O'Farrell, MD | 1003822362 | Surgery Physician | Austin, TX | 2006 |
| Kevyn O'Farrell | 1699417238 | Behavior Technician | Orem, UT | 2022 |
| Leonora O'Farrell, LCSW | 1821534181 | Clinical Social Worker | New London, CT | 2017 |
| Marguerite O'Farrell, M.D. | 1407090251 | Emergency Medicine Physician | Englewood, CO | 2009 |
| Maria O'Farrell, OTR/L | 1366961765 | Occupational Therapist | Decatur, GA | 2017 |
| Mark O'Farrell, D.D.S. | 1174677900 | Dentist | Rock Springs, WY | 2007 |
| Mary O'Farrell, PH.D. | 1912105271 | Psychologist | Washington, DC | 2007 |
| Matthew O'Farrell, DDS | 1255852364 | General Practice Dentistry | Rock Springs, WY | 2017 |
| Maureen O'Farrell, LMSW | 1154742534 | Clinical Social Worker | Sherman, CT | 2014 |
| Megan O'Farrell, L.AC. | 1689977480 | Acupuncturist | Costa Mesa, CA | 2010 |
| Meghan O'Farrell, PT, DPT | 1487570982 | Physical Therapist | Massapequa Park, NY | 2026 |
| Michael O'Farrell | 1497275002 | General Practice Dentistry | Rock Springs, WY | 2017 |
| Nancy O'Farrell, PA-C | 1659490423 | Medical Physician Assistant | Waco, TX | 2007 |
| Rachel O'Farrell, LCSW, MPH, CCLS | 1730420308 | Clinical Social Worker | Lexington, KY | 2013 |
| Rebecca O'Farrell | 1265099840 | Physical Therapist | Peachtree City, GA | 2019 |
| Ryan O'Farrell, PSY.D. | 1073212171 | Clinical Psychologist | Charleston, SC | 2023 |
| Sarah O'Farrell, PA-C | 1831757525 | Physician Assistant | Altoona, PA | 2019 |
| Thomas O'Farrell, PT | 1700650066 | Physical Therapist | Mooresville, NC | 2023 |
| Timothy O'Farrell, PH.D. | 1962590091 | Family Psychologist | Brockton, MA | 2006 |
| Lorna O'Farrell-Rodriguez, EMT-P | 1891786992 | Paramedic | Tobyhanna, PA | 2005 |
| Lindsey O'Farriell, DDS | 1922366384 | General Practice Dentistry | Saratoga, CA | 2012 |
| Carlos O'Farrill, APRN | 1043895444 | Family Nurse Practitioner | Marathon, FL | 2021 |
| Judith O'Farrill | 1255088761 | Doula | Orlando, FL | 2022 |
| Nora O'Farrill Herrera, O.D. | 1972779577 | Optometrist | Canovanas, PR | 2008 |
| Betsy O'Farrill-Berges, LMFT | 1235819335 | Marriage & Family Therapist | Spring Hill, FL | 2023 |
| William O'Farrow, DO | 1861333114 | Student in an Organized Health Care Education/Training Program | Dayton, OH | 2026 |
| Ruaidhri O'Fathaigh, MD | 1639497852 | Internal Medicine Physician | Salem, VA | 2010 |
| John O'Fee | 1578203956 | Internal Medicine Physician | La Jolla, CA | 2022 |
| Kevin O'Fee, MD | 1396305868 | Cardiovascular Disease Physician | Santa Monica, CA | 2019 |
| Nicole O'Fee | 1336917624 | Speech-Language Pathologist | New York, NY | 2023 |
| Hayden O'Ferral | 1518560952 | Pharmacist | Dayton, OH | 2020 |
| Raul O'Ferral, MD | 1851051932 | General Practice Physician | San Juan, PR | 2021 |
| Caroline O'Ferrall, MD | 1477258432 | Student in an Organized Health Care Education/Training Program | New York, NY | 2023 |
| Erin O'Ferrall, MD | 1316250830 | Neurology Physician | Rochester, MN | 2010 |
| Melissa O'Ferrall, RPH | 1922216399 | Pharmacist | Dalton, GA | 2007 |
| Patrick O'Ferrall, CRNA | 1427514413 | Certified Registered Nurse Anesthetist | Dalton, GA | 2019 |
| Shannon O'Ferrall | 1427946169 | Behavior Technician | California, MD | 2025 |
| Lindsey O'Ferrell | 1679258081 | Clinical Social Worker | Jacksonville, FL | 2023 |
| Heather O'Field, M.D. | 1518312461 | Surgery Physician | Myrtle Beach, SC | 2016 |
| Lena O'Field, DO | 1447051404 | Student in an Organized Health Care Education/Training Program | Myrtle Beach, SC | 2025 |
| Steven O'Field, LICSW, AADC | 1306361670 | Social Worker | Rainelle, WV | 2017 |
| Tayler O'Field | 1649024316 | Massage Therapist | Grove, OK | 2024 |
| Katlyn O'Fihelly | 1093670705 | Peer Specialist | Palmer, AK | 2025 |
| Baylor O'Fionnain, PT, DPT, GCS | 1164369211 | Geriatric Physical Therapist | Nashville, TN | 2026 |
| Alecia O'Flaherty, BS | 1245976570 | Electroneurodiagnostic Specialist/Technologist | Las Vegas, NV | 2022 |
| Aoife O'Flaherty, RD | 1821969890 | Metabolic Nutrition Registered Dietitian | South Boston, MA | 2025 |
| Brooke O'Flaherty, MSW, LICSW | 1003555947 | Clinical Social Worker | Tacoma, WA | 2022 |
| Bryce O'Flaherty, LPC, CDCA | 1679234892 | Mental Health Counselor | Fremont, OH | 2022 |
| Carol O'Flaherty | 1891575395 | Behavior Analyst | Monrovia, CA | 2023 |
| Cecilia O'Flaherty, BCBA, M.ED. | 1225514300 | Behavior Analyst | St Johnsbury, VT | 2018 |
| Christina O'Flaherty, PSY.D. | 1336359108 | Clinical Psychologist | Washington, DC | 2007 |
| Deanne O'Flaherty | 1689793499 | Mental Health Counselor | Omaha, NE | 2007 |
| Erin O'Flaherty, M.D. | 1194040287 | Psychiatry Physician | Highlands Ranch, CO | 2010 |
| Erin O'Flaherty, RD | 1649100983 | Registered Dietitian | Edwardsville, IL | 2026 |
| Heather O'Flaherty, MA, LPC | 1912551789 | Professional Counselor | Glenn Heights, TX | 2019 |
| Holly O'Flaherty, M.S.S.A., L.I.S.W | 1497885222 | Clinical Social Worker | Lakewood, OH | 2007 |
| Jeanette O'Flaherty, LMHC, NCC, CBHCMS | 1003426198 | Mental Health Counselor | Fort Lauderdale, FL | 2020 |
| Jeanne O'Flaherty | 1538975321 | Mental Health Counselor | Seattle, WA | 2024 |
| Jeffrey O'Flaherty, D.C. | 1336187723 | Chiropractor | Beaverton, OR | 2006 |
| Jeffrey O'Flaherty, DX | 1518710235 | Chiropractor | Melissa, TX | 2024 |
| Jennifer O'Flaherty, M.D., MPH | 1568408847 | Anesthesiology Physician | Lebanon, NH | 2006 |
| Julianna O'Flaherty | 1336744663 | Student in an Organized Health Care Education/Training Program | Burlington, VT | 2020 |
| Julie O'Flaherty | 1154742898 | Physical Therapist | Brookfield, IL | 2013 |
| Karen O'Flaherty | 1578731105 | Speech-Language Pathologist | Pleasant Hill, CA | 2008 |
| Kathleen O'Flaherty, MED | 1003324773 | Specialist | New Rochelle, NY | 2018 |
| Kent O'Flaherty | 1821448713 | Marriage & Family Therapist | Salem, OR | 2016 |
| Kevin O'Flaherty, PHD | 1285622423 | Audiologist | New York, NY | 2005 |
| Kyle O'Flaherty, PT | 1083171318 | Orthopedic Physical Therapist | Mahwah, NJ | 2019 |
| Lauren O'Flaherty, M.A., AU.D. | 1922286723 | Audiologist-Hearing Aid Fitter | Winfield, IL | 2008 |
| Lisa O'Flaherty, LAC | 1407381437 | Acupuncturist | Tacoma, WA | 2017 |
| Lucy O'Flaherty, LCSW | 1134219496 | Clinical Social Worker | Bethpage, NY | 2006 |
| Mary O'Flaherty, LCSW | 1538175385 | Clinical Social Worker | New York, NY | 2006 |
| Meaghen O'Flaherty | 1215435664 | Occupational Therapist | Brockton, MA | 2018 |
| Melony O'Flaherty, M.S., CCC-SLP | 1497133995 | Speech-Language Pathologist | Elko, NV | 2015 |
| Patrick O'Flaherty, MD | 1831726876 | Family Medicine Physician | La Crescent, MN | 2020 |
| Paul O'Flaherty, LCPC & LCADC | 1538485503 | Social Worker | Hagerstown, MD | 2010 |
| Sean O'Flaherty, D.C. | 1497077127 | Chiropractor | Richmond, VA | 2010 |
| Shea O'Flaherty | 1396608386 | Mental Health Counselor | Rocky River, OH | 2025 |
| Stephanie O'Flaherty, AUD | 1366827743 | Audiologist | East Dorset, VT | 2015 |
| Kate O'Flaherty-Keese, P.N.P. | 1144417726 | Nurse Practitioner | San Diego, CA | 2007 |
| Jacquelyn O'Flahrity, APSW MSW | 1467082313 | Social Worker | Janesville, WI | 2020 |
| Tyler O'Flahrity, MD | 1043637127 | Internal Medicine Physician | Sacramento, CA | 2014 |
| Carol O'Flanagan, APSW | 1285829622 | Social Worker | Janesville, WI | 2007 |
| Justine O'Flanagan | 1982339537 | Speech-Language Pathologist | Fairlawn, OH | 2022 |
| Marcella O'Flanagan, LCSW | 1952420754 | Clinical Social Worker | Eureka, CA | 2007 |
| Maureen O'Flanagan, DDS, PA | 1588871784 | General Practice Dentistry | Deerfield Beach, FL | 2007 |
| Melissa O'Flanagan | 1447514286 | Specialist | Poughkeepsie, NY | 2012 |
| Michael O'Flanagan, CRNA | 1316244254 | Certified Registered Nurse Anesthetist | Akron, OH | 2011 |
| Thomas O'Flanagan | 1649165556 | Mental Health Counselor | Knoxville, TN | 2025 |
| Linnie O'Flanagan-Gorre, L.AC. | 1598726127 | Acupuncturist | Meadow Vista, CA | 2006 |
| Jessica O'Flannagan | 1508650417 | Social Worker | Wichita, KS | 2025 |
| Brian O'Flannigan, MSED, ATC, LAT, CES, | 1720498991 | Athletic Trainer | Butte, MT | 2014 |
| Cara O'Flannigan, M.A., CCC-SLP | 1114005154 | Speech-Language Pathologist | Cleveland, OH | 2006 |
| Donna O'Flannigan, MS, RD, CSP | 1134684772 | Registered Dietitian | Phoenix, AZ | 2019 |
| Molly O'Flannigan | 1134906415 | Addiction (Substance Use Disorder) Counselor | Lafayette, CO | 2023 |
| James O'Flarity, M.S., BCBA | 1477362382 | Behavior Analyst | Torrance, CA | 2025 |
| Jennifer O'Flarity, NP | 1194395020 | Family Nurse Practitioner | Jackson, MS | 2021 |
| Christina O'Flinn, RN | 1063843829 | Registered Nurse | San Andreas, CA | 2013 |
| Shannon O'Flinn, PH.D. | 1336344811 | Clinical Psychologist | Pasadena, CA | 2007 |
| Kristine O'Flyng, SAC-IT | 1992380166 | Addiction (Substance Use Disorder) Counselor | Wausau, WI | 2021 |
| Ashley O'Flynn, FNP-C | 1093420044 | Family Nurse Practitioner | New Orleans, LA | 2023 |
| Ashley O'Flynn | 1619455854 | Behavior Technician | King Of Prussia, PA | 2018 |
| Cynthia O'Flynn, ME.D, ATR-BC, CTS | 1841365350 | Art Therapist | Troy, MI | 2006 |
| Diane O'Flynn | 1528488178 | Community Health Worker | Reno, NV | 2014 |
| Hugh O'Flynn, M.D. | 1437258738 | Orthopaedic Surgery Physician | Peabody, MA | 2006 |
| Jay O'Flynn, M.D. | 1346374741 | Internal Medicine Physician | Columbus, OH | 2007 |
| Jay O'Flynn | 1417743337 | Social Worker | Fairfield, OH | 2025 |
| Jennifer O'Flynn, PHD | 1396356564 | Mental Health Counselor | Somervillle, MA | 2020 |
| Karen O'Flynn, M.D. | 1740390863 | Psychiatry Physician | Torrington, CT | 2006 |
| Katherine O'Flynn, M.D. | 1942274667 | Pediatrics Physician | Plantation, FL | 2006 |
| Leisa O'Flynn, DO | 1811936289 | Obstetrics & Gynecology Physician | Mullica Hill, NJ | 2006 |
| Mary O'Flynn | 1528809670 | Behavior Technician | Nanuet, NY | 2024 |
| Micah O'Flynn | 1407592660 | Behavior Technician | Farmington Hills, MI | 2022 |
| Michaeleen O'Flynn, MSW | 1932220399 | Clinical Social Worker | Aurora, CO | 2007 |
| Michelle O'Flynn | 1457952251 | Professional Counselor | New Orleans, LA | 2020 |
| Patrick O'Flynn | 1982441119 | Case Manager/Care Coordinator | Ann Arbor, MI | 2024 |
| Sonja O'Flynn, ARNP | 1053457655 | Women's Health Nurse Practitioner | Sarasota, FL | 2007 |
| Tamsyn O'Flynn, APRN | 1467872697 | Nurse Practitioner | Kingsland, GA | 2014 |
| Kasey O'Flynn O'Brien, NP | 1558915389 | Hospitalist Physician | Concord, NC | 2019 |
| Katherine O'Flynn O'Brien | 1770994782 | Obstetrics & Gynecology Physician | Minneapolis, MN | 2014 |
| Margaret O'Flynn-Levesque, RNC | 1063509065 | Psychiatric/Mental Health Registered Nurse | Manchester, NH | 2006 |
| Clarissa Fe O'Francia, CBT, LABA | 1780331843 | Assistant Behavior Analyst | Mountlake Terrace, WA | 2022 |
| Vanessa O'Francia | 1770006702 | School Social Worker | Seattle, WA | 2017 |
| Rebecca O'Free, OTR/L | 1487082806 | Occupational Therapist | Santa Cruz, CA | 2013 |
| Garrett O'Friel, DDS | 1861373268 | Dentist | Baton Rouge, LA | 2025 |
| Pamela O'Friel, RD | 1700815990 | Renal Nutrition Registered Dietitian | Thousand Oaks, CA | 2006 |
| Casey O'Galleher, BSN, RN | 1073267605 | Registered Nurse | Olympia, WA | 2022 |
| Adrienne O'Gara | 1972341972 | Gerontology Nurse Practitioner | Lansdale, PA | 2024 |
| Babara O'Gara, LCS 19166 | 1871653709 | Clinical Social Worker | Chico, CA | 2006 |
| Brian O'Gara, MD | 1609187608 | Anesthesiology Physician | Boston, MA | 2010 |
| Brittany O'Gara, PA-C | 1033578026 | Physician Assistant | Amityville, NY | 2016 |
| Brooke O'Gara, LMHC, LCDP | 1669962957 | Mental Health Counselor | Cumberland, RI | 2018 |
| Chad O'Gara | 1760556013 | Hearing Instrument Specialist | Olathe, KS | 2006 |
| Christine O'Gara | 1760020622 | Mental Health Counselor | Sandwich, MA | 2019 |
| Christine O'Gara, OTA | 1861790560 | Occupational Therapy Assistant | Providence, RI | 2011 |
| Connor O'Gara, DC | 1649123209 | Chiropractor | Burlington, KY | 2026 |
| Danielle O'Gara | 1316771777 | Speech-Language Pathologist | Chicago, IL | 2024 |
| Derrick O'Gara, PTA | 1104436989 | Physical Therapy Assistant | Duette, FL | 2020 |
| Ellen Marie O'Gara, NP | 1023068657 | Family Nurse Practitioner | Bethesda, MD | 2006 |
| Erin O'Gara, LICSW | 1053298547 | Clinical Social Worker | Saint Paul, MN | 2025 |
| Erin O'Gara, DC | 1790485027 | Chiropractor | Lincoln, NE | 2023 |
| Florence O'Gara, LMSW, RN | 1548455272 | Clinical Social Worker | Ann Arbor, MI | 2007 |
| George O'Gara | 1437078201 | Registered Nurse | Minneapolis, MN | 2026 |
| Jaimie O'Gara | 1235404872 | Community Health Worker | Omaha, NE | 2012 |
| Jennifer O'Gara, MPT | 1124132212 | Physical Therapist | Broomall, PA | 2006 |
| Jill O'Gara, LCSW | 1902625767 | Social Worker | Somerville, MA | 2024 |
| Josephine O'Gara, MD | 1124197140 | Internal Medicine Physician | Stillwater, MN | 2006 |
| Julia O'Gara, MD | 1952197634 | Student in an Organized Health Care Education/Training Program | Houston, TX | 2025 |
| Julie O'Gara, FNP | 1487252193 | Family Nurse Practitioner | Wichita, KS | 2020 |
Source: CMS National Plan and Provider Enumeration System (NPPES) (download.cms.gov). A listing is not a recommendation: check a license with the state board (license lookups).