Providers Victoria O'Bleness to Angela O'Brien, LSW
300 individual NPIs in the federal registry, part 16,001 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. 91 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Victoria O'Bleness | 1417649484 | Behavior Technician | Oakland, CA | 2023 |
| Dajhila O'Blenis | 1518546613 | Mental Health Counselor | Davis, CA | 2021 |
| Katherine O'Blennis Yvanovich, AMFT | 1427889161 | Marriage & Family Therapist | San Jose, CA | 2024 |
| John O'Block, O.D. | 1427200724 | Optometrist | Derry, NH | 2008 |
| Karen O'Block, ANP | 1922015866 | Family Nurse Practitioner | Faribanks, AK | 2006 |
| Lisa O'Block, PT | 1750349106 | Orthopedic Physical Therapist | Tacoma, WA | 2006 |
| Maggie O'Block, RN, APN | 1295287365 | Gerontology Nurse Practitioner | Nashville, TN | 2016 |
| Dylan O'Borsky, DDS | 1245075977 | General Practice Dentistry | Big Lake, MN | 2024 |
| Michael O'Borsky, D.P.M. | 1053477406 | Foot & Ankle Surgery Podiatrist | Buffalo, MN | 2006 |
| Sally O'Borsky, PT | 1043256944 | Physical Therapist | Buffalo, MN | 2006 |
| Dennis O'Bosky | 1861689689 | Counselor | Exeter, CA | 2007 |
| Francis O'Bosky, DMD | 1588748107 | General Practice Dentistry | Montclair, NJ | 2006 |
| Tracy O'Bosky, M.S., LPC, CAADC | 1376886127 | Counselor | Belle Vernon, PA | 2013 |
| Phillip O'Bourke, PHARM. D. | 1164773446 | Pharmacist | Gallup, NM | 2012 |
| Marie O'Boye, RN | 1447408174 | Registered Nurse | Plainfield, IL | 2008 |
| Amanda O'Boyle | 1801312343 | Behavior Technician | Novi, MI | 2017 |
| Amy O'Boyle, MD | 1679548341 | Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician | Olympia, WA | 2006 |
| Amy O'Boyle, LMHC | 1942615208 | Mental Health Counselor | Plymouth, MA | 2014 |
| Andrea O'Boyle, M.D. | 1548452493 | Pediatric Critical Care Medicine Physician | Toledo, OH | 2007 |
| Angelica O'Boyle, AU.D. | 1740412741 | Audiologist | Northridge, CA | 2009 |
| Anna O'Boyle | 1629639075 | Psychiatric/Mental Health Registered Nurse | Seattle, WA | 2019 |
| Bonnie O'Boyle, LPC | 1659938611 | Professional Counselor | Bentonville, AR | 2019 |
| Brendan O'Boyle, PT | 1679719918 | Physical Therapist | Braintree, MA | 2008 |
| Brendan O'Boyle, PA-C | 1932253044 | Surgical Physician Assistant | East Islip, NY | 2007 |
| Bridgette O'Boyle | 1609761451 | Professional Counselor | Fort Collins, CO | 2025 |
| Caroline O'Boyle | 1588476907 | Behavior Analyst | Bloomfield, NJ | 2025 |
| Casey O'Boyle, ANP | 1265878987 | Adult Health Nurse Practitioner | Plymouth, MA | 2013 |
| Cassandra O'Boyle, LMSW | 1336986801 | Social Worker | Las Vegas, NV | 2024 |
| Charles O'Boyle, BCBA | 1992545842 | Behavior Analyst | Elmwood, LA | 2024 |
| Chelsea O'Boyle, OTR/L | 1104565902 | Occupational Therapist | Sugar Land, TX | 2022 |
| Cherokee O'Boyle | 1689871162 | Case Manager/Care Coordinator | Bakersfield, CA | 2007 |
| Christine O'Boyle, RPH | 1346425808 | Pharmacist | Huntington, NY | 2008 |
| Christopher O'Boyle, ATC | 1093047219 | Athletic Trainer | Rutherford, NJ | 2010 |
| Connor O'Boyle, MD | 1003557893 | Student in an Organized Health Care Education/Training Program | Detroit, MI | 2022 |
| Conor O'Boyle, MD | 1801646054 | Student in an Organized Health Care Education/Training Program | Columbus, OH | 2024 |
| Cori O'Boyle | 1760950083 | Behavior Technician | Westerville, OH | 2018 |
| Emili O'Boyle, CNM | 1588238349 | Advanced Practice Midwife | Paducah, KY | 2021 |
| Emily O'Boyle, NP | 1811676695 | Family Nurse Practitioner | New York, NY | 2023 |
| Ethan O'Boyle, DO | 1437093317 | Student in an Organized Health Care Education/Training Program | Lubbock, TX | 2026 |
| Heather O'Boyle | 1437527066 | Psychologist | Southgate, MI | 2015 |
| Hillary O'Boyle, MD | 1730620162 | Pediatrics Physician | Richmond, VA | 2017 |
| Jacqueline O'Boyle, D.O. | 1164876744 | Family Medicine Physician | Manhasset, NY | 2016 |
| Jacqueline O'Boyle, LCSW, CADC | 1437970431 | Social Worker | San Francisco, CA | 2024 |
| Jamie O'Boyle, RD,LDN | 1285295451 | Registered Dietitian | Broomall, PA | 2019 |
| Janelle O'Boyle, ED.D., LPC | 1639343213 | Mental Health Counselor | Longmont, CO | 2008 |
| Jeff O'Boyle, D.O. | 1619139821 | Family Medicine Physician | Ann Arbor, MI | 2008 |
| Jenna O'Boyle | 1306664586 | Speech-Language Pathologist | Narberth, PA | 2024 |
| Jennifer O'Boyle, PA | 1528276219 | Physician Assistant | Lockport, IL | 2007 |
| John O'Boyle, M.D. | 1306808381 | Gynecologic Oncology Physician | Lacey, WA | 2006 |
| Jordyn O'Boyle | 1346993425 | Behavior Technician | Attleboro, MA | 2022 |
| Joshua O'Boyle, DPT | 1184369647 | Physical Therapist | Scottsdale, AZ | 2022 |
| Katherine O'Boyle | 1396521399 | Family Nurse Practitioner | Raleigh, NC | 2023 |
| Katherine O'Boyle, CNP | 1952824138 | Primary Care Nurse Practitioner | Mentor, OH | 2017 |
| Kayla O'Boyle, LCSW | 1922790013 | Clinical Social Worker | Reidsville, NC | 2023 |
| Kelly O'Boyle | 1619503588 | Critical Care Medicine (Internal Medicine) Physician | Glen Cove, NY | 2020 |
| Kelsey O'Boyle, M.ED., CCC-SLP | 1003430646 | Speech-Language Pathologist | Charlottesville, VA | 2020 |
| Kerry O'Boyle, OTR/L | 1902406895 | Occupational Therapist | Brooklyn, NY | 2020 |
| Kevin O'Boyle | 1154122877 | Professional Counselor | Lancaster, PA | 2025 |
| Kit O'Boyle, RN, BSN, MSW, LCSW | 1164908182 | Clinical Social Worker | Portland, OR | 2018 |
| Kyle O'Boyle | 1922530575 | Emergency Medicine Physician | Houston, TX | 2017 |
| Lauren O'Boyle | 1598428492 | Nurse Practitioner | Orlando, FL | 2021 |
| Lauren O'Boyle, DPT | 1861764979 | Physical Therapist | Ozone Park, NY | 2012 |
| Linda O'Boyle, CRNP | 1568558971 | Family Nurse Practitioner | Nanticoke, PA | 2006 |
| Lisha O'Boyle | 1639529001 | Social Worker | Columbus, OH | 2016 |
| Louise O'Boyle, M.A. | 1477609428 | Speech-Language Pathologist | Pittsburgh, PA | 2007 |
| Lynn O'Boyle, AUD | 1073139812 | Audiologist | Orlando, FL | 2020 |
| Madson O'Boyle | 1053056796 | Behavior Analyst | Stanton, MI | 2022 |
| Magdalene O'Boyle, CNM | 1881885234 | Advanced Practice Midwife | Syracuse, NY | 2007 |
| Marie O'Boyle, LCSW, LCADC | 1508870767 | Clinical Social Worker | Morristown, NJ | 2006 |
| Marisa O'Boyle, ED.M., PH.D. | 1740560283 | Student in an Organized Health Care Education/Training Program | Brookline, MA | 2011 |
| Mary O'Boyle, OTD | 1083225262 | Occupational Therapist | Springfield, IL | 2020 |
| Mary O'Boyle | 1710787783 | Homemaker | Norfolk, NE | 2025 |
| Mattie O'Boyle | 1316551294 | Student in an Organized Health Care Education/Training Program | Seattle, WA | 2020 |
| Meade O'Boyle, M.D. | 1972683597 | Pediatrics Physician | Monroe, LA | 2006 |
| Megan O'Boyle, LCSW | 1740852805 | Clinical Social Worker | New York, NY | 2021 |
| Meghan O'Boyle | 1669342929 | Peer Specialist | La Jolla, CA | 2025 |
| Melanie O'Boyle, RN,BSN | 1427709781 | School Registered Nurse | Grand Island, NE | 2022 |
| Meredith O'Boyle, LCSW | 1568707859 | Clinical Social Worker | New York, NY | 2012 |
| Michele O'Boyle, MA, QMHP | 1457872921 | Mental Health Counselor | Marion, IL | 2017 |
| Molly O'Boyle | 1538790928 | Student in an Organized Health Care Education/Training Program | Madison, WI | 2020 |
| Mutya O'Boyle, P.T. | 1740411263 | Physical Therapist | Las Vegas, NV | 2009 |
| Olivia O'Boyle | 1073451217 | Occupational Therapist | Hillsborough, NC | 2026 |
| Patricia O'Boyle, C.O.T.A. | 1104038603 | Occupational Therapy Assistant | Arlington, MA | 2007 |
| Patricia O'Boyle | 1710659503 | Behavior Technician | Farmington Hills, MI | 2021 |
| Rachel O'Boyle, MS, ATC | 1306320866 | Athletic Trainer | Portage, MI | 2018 |
| Robert O'Boyle, MD | 1659353977 | Pediatrics Physician | Port Hueneme, CA | 2005 |
| Roberta O'Boyle | 1275868796 | Developmental Therapist | Fishers, IN | 2009 |
| Ronald O'Boyle, D.M.D. | 1871517045 | General Practice Dentistry | Mount Pocono, PA | 2006 |
| Roseanne O'Boyle, FNP | 1801842042 | Family Nurse Practitioner | New York, NY | 2006 |
| Ryan O'Boyle, PTA | 1396458931 | Physical Therapy Assistant | Joliet, IL | 2022 |
| Sara O'Boyle, RMHCI | 1811717051 | Mental Health Counselor | Royal Palm Beach, FL | 2024 |
| Sean O'Boyle | 1487195814 | Pediatrics Physician | Glen Allen, VA | 2017 |
| Shannon O'Boyle | 1891544961 | Home Health Aide | Wilmington, OH | 2024 |
| Theresa O'Boyle | 1245127695 | Behavior Technician | Cullman, AL | 2025 |
| Theresa O'Boyle, CHW | 1396694840 | Community Health Worker | Suttons Bay, MI | 2026 |
| Theresa O'Boyle, PA | 1477036648 | Physician Assistant | Santa Barbara, CA | 2018 |
| Timothy O'Boyle, M.D. | 1720080088 | Ophthalmology Physician | Dalton, GA | 2005 |
| Timothy O'Boyle, QMHP | 1891624110 | Counselor | Du Quoin, IL | 2026 |
| William O'Boyle, LPCC-S | 1003546466 | Professional Counselor | Solon, OH | 2022 |
| Patricia O'Boyle Kost, D.C. | 1336290642 | Chiropractor | River Edge, NJ | 2007 |
| Jennifer O'Boyle Scott, RN | 1013137488 | Registered Nurse | North Collins, NY | 2007 |
| Bridget O'Boyle-Jordan, CPNP | 1972519429 | Pediatric Nurse Practitioner | West Linn, OR | 2006 |
| Christopher O'Boynick, MD | 1356504252 | Orthopaedic Surgery Physician | Saint Louis, MO | 2008 |
| Erin O'Bra | 1124628813 | Behavior Technician | Napa, CA | 2020 |
| Shamara O'Brady | 1578280368 | Behavior Technician | Lauderhill, FL | 2022 |
| Portugal O'Braint, MLS(ASCP) | 1790522746 | Technician/Technologist | Merigold, MS | 2024 |
| Richard O'Braitis | 1821178062 | Dentist | Mission Viejo, CA | 2006 |
| Beverly O'Brallaghan, RN | 1629306436 | Ambulatory Care Registered Nurse | Parker, AZ | 2009 |
| Brittany O'Branski, RRT | 1801774286 | Pulmonary Rehabilitation Registered Respiratory Therapist | Hunt Valley, MD | 2025 |
| Erin O'Branski, P.A. | 1912056938 | Physician Assistant | Durham, NC | 2007 |
| Kathryn O'Brasky, LCSW | 1689700866 | Clinical Social Worker | La Mesa, CA | 2007 |
| Philip O'Brate, PA-C | 1316311178 | Medical Physician Assistant | Durham, NC | 2015 |
| Jordan O'Bray | 1750689477 | Counselor | Salt Lake City, UT | 2011 |
| Lynnann O'Bray-Donohue, AUD | 1770606097 | Audiologist | Port Jefferson Station, NY | 2007 |
| Reine O'Brein | 1770370157 | Behavior Technician | Worcester, MA | 2025 |
| Kacey O'Brennan, DPT | 1699552877 | Physical Therapist | Albuquerque, NM | 2023 |
| Shane O'Brennan | 1518741073 | Physical Therapist | Albuquerque, NM | 2023 |
| David O'Briain, MD | 1427598192 | Student in an Organized Health Care Education/Training Program | Tampa, FL | 2017 |
| Alexis O'Brian | 1922824630 | Home Health Aide | Lewis Center, OH | 2024 |
| Antoinette O'Brian | 1871155721 | Behavior Analyst | Tallahassee, FL | 2019 |
| Brandee O'Brian, RN | 1578045092 | Home Health Registered Nurse | Lubbock, TX | 2018 |
| Brian O'Brian, N.D. | 1366127250 | Naturopath | Kapas, HI | 2023 |
| Casey O'Brian, AMFT | 1447748264 | Mental Health Counselor | Red Bluff, CA | 2018 |
| Casey O'Brian, OTR/L | 1730683244 | Occupational Therapist | Winter Park, FL | 2018 |
| Chance O'Brian | 1821980970 | Counselor | Aberdeen, WA | 2025 |
| Christine O'Brian | 1104385368 | Pharmacist | Champlain, NY | 2019 |
| Christopher O'Brian, LCSW | 1386947752 | Clinical Social Worker | Jacksonville, NC | 2010 |
| Daniel O'Brian | 1275050486 | Student in an Organized Health Care Education/Training Program | Cleveland, OH | 2017 |
| David O'Brian, D.P.M. | 1821165135 | Podiatrist | Streamwood, IL | 2006 |
| Edward O'Brian, PA | 1366643744 | Physician Assistant | Washington, DC | 2007 |
| Elberta O'Brian, RN | 1093842056 | Registered Nurse | Denver, CO | 2007 |
| Jeffrey O'Brian, MD | 1437419710 | Anesthesiology Physician | Muncie, IN | 2012 |
| Jimmy O'Brian, PHARMD | 1053838771 | Pharmacist | Okolona, MS | 2017 |
| John O'Brian, MD | 1740256817 | Endocrinology, Diabetes & Metabolism Physician | Norfolk, VA | 2006 |
| Katie O'Brian, MS, OTR/L | 1538464383 | Occupational Therapist | Vernon, VT | 2011 |
| Kelly O'Brian | 1023386414 | Physical Therapy Assistant | Carmel, IN | 2011 |
| Kelly Jean O'Brian | 1346733359 | Pediatric Nurse Practitioner | Auburn, WA | 2018 |
| Kristen O'Brian, PHARM D | 1023535812 | Pharmacist | Aberdeen, MS | 2017 |
| Neoki O'Brian | 1639768021 | Behavior Technician | Tacoma, WA | 2021 |
| Quinn O'Brian, LCSW | 1588411730 | Clinical Social Worker | Davenport, IA | 2024 |
| Rachel O'Brian, MD | 1780004812 | Pediatric Emergency Medicine (Pediatrics) Physician | Falls Church, VA | 2014 |
| Robert O'Brian, M.D. | 1730140724 | Rheumatology Physician | Eldersburg, MD | 2006 |
| Shaneeza O'Brian, NP | 1588972145 | Family Nurse Practitioner | Brooklyn, NY | 2010 |
| Sherry O'Brian, LCSW | 1205258563 | Clinical Social Worker | Noblesville, IN | 2014 |
| Travis O'Brian | 1295550028 | Personal Care Attendant | Huntington, WV | 2024 |
| Turner O'Brian, DMD | 1275193732 | General Practice Dentistry | Lexington, KY | 2019 |
| Whitney O'Brian, O.D. | 1235491515 | Optometrist | Greenville, SC | 2012 |
| Sara O'Brian Polniak, LMHC, NCC | 1609358902 | Mental Health Counselor | Potsdam, NY | 2018 |
| Madeleine O'Brian Yarinsky, MD | 1740983212 | Dermatology Physician | Kansas City, KS | 2023 |
| Sara O'Brian-Molina | 1740045251 | Behavior Technician | San Antonio, TX | 2024 |
| Megan O'Brian-Nicka, OTR/L | 1942880273 | Occupational Therapist | Coudersport, PA | 2021 |
| Amanda O'Briant, WHCNP/CNM | 1275751026 | Midwife | Chapel Hill, NC | 2007 |
| Audrey O'Briant, RN, LME, EMT-P | 1124906573 | Emergency Registered Nurse | Durham, NC | 2025 |
| Bailee O'Briant | 1730816133 | Behavior Technician | Raleigh, NC | 2022 |
| Breeze O'Briant, BCBA | 1649830662 | Behavior Analyst | Round Rock, TX | 2019 |
| Crystal O'Briant, MSW, P-LCSW | 1245525708 | Clinical Social Worker | Rocky Mount, NC | 2011 |
| David O'Briant, M.D. | 1124292214 | Internal Medicine Physician | Missoula, MT | 2008 |
| Deborah O'Briant, RN, NP-C | 1992123616 | Family Nurse Practitioner | Bryan, TX | 2014 |
| Jason O'Briant, RD | 1316274137 | Registered Dietitian | Rocky Mount, NC | 2009 |
| Jennifer O'Briant, C.P.M., L.M. | 1639505324 | Midwife | West Columbia, SC | 2013 |
| Kari O'Briant, MT-BC | 1154620334 | Music Therapist | Pembroke, MA | 2011 |
| Kevin O'Briant, D.C. | 1093883829 | Chiropractor | Wake Forest, NC | 2006 |
| Michael O'Briant, RN | 1265293138 | Home Health Registered Nurse | Kirkland, WA | 2024 |
| Patrick O'Briant | 1790970358 | Pharmacist | Horn Lake, MS | 2007 |
| Robin O'Briant, M.D. | 1528231040 | Hospitalist Physician | Charlotte, NC | 2008 |
| Sandra O'Briant | 1023495223 | Professional Counselor | Pantego, TX | 2015 |
| Tabitha O'Briant, MSW, LCSWA | 1780298042 | Clinical Social Worker | Wilmington, NC | 2020 |
| Vanessa O'Briant, PHARM.D. | 1578686416 | Pharmacist | Kingston, TN | 2007 |
| William O'Briant | 1548646771 | Other Specialist/Technologist | Perry, FL | 2015 |
| Shawnda O'Briant-Noone | 1457223513 | Marriage & Family Therapist | Tacoma, WA | 2025 |
| Kerry O'Bric | 1922446913 | Physician Assistant | Salisbury, NC | 2013 |
| Aaron O'Brien, DO | 1023768157 | Internal Medicine Physician | Burlington, VT | 2022 |
| Aaron O'Brien, MD | 1114155074 | Orthopaedic Surgery Physician | St George, UT | 2009 |
| Aaron O'Brien | 1346017696 | Homemaker | Galloway, OH | 2023 |
| Abagail O'Brien, MA, BCBA | 1225640659 | Behavior Analyst | Tampa, FL | 2020 |
| Abigail O'Brien, APNP | 1336803378 | Nurse Practitioner | Middleton, WI | 2021 |
| Abigail O'Brien | 1558955609 | Behavior Technician | Schaumburg, IL | 2021 |
| Abigail O'Brien, FNP-C | 1770295818 | Family Nurse Practitioner | Traverse City, MI | 2022 |
| Achara O'Brien, D.D.S. | 1285790386 | Endodontics | Wilmington, NC | 2006 |
| Adam O'Brien, MD | 1013283860 | Orthopaedic Surgery Physician | Pflugerville, TX | 2012 |
| Adam O'Brien | 1104245869 | Obstetrics & Gynecology Physician | Wenatchee, WA | 2014 |
| Adam O'Brien, LMHC CASAC | 1689019168 | Mental Health Counselor | Chatham, NY | 2013 |
| Adam O'Brien | 1790016111 | Social Worker | Roslindale, MA | 2010 |
| Adam O'Brien, APRN, RN, PMHNP-BC | 1801592951 | Psychiatric/Mental Health Nurse Practitioner | Valhalla, NY | 2023 |
| Adam O'Brien, DO | 1912380320 | Anesthesiology Physician | Portland, ME | 2015 |
| Adria O'Brien, RPH | 1912242447 | Pharmacist | Bluffton, SC | 2012 |
| Adrian O'Brien, CPM, LM | 1972170512 | Midwife | Golden, MO | 2021 |
| Adriana O'Brien | 1790172542 | Certified Registered Nurse Anesthetist | Philadelphia, PA | 2015 |
| Adrianne O'Brien, FNP | 1154711695 | Family Nurse Practitioner | Green Valley, AZ | 2015 |
| Adrien O'Brien | 1871138834 | Contractor | Tifton, GA | 2019 |
| Adrienne O'Brien, CRNA | 1902131345 | Certified Registered Nurse Anesthetist | Westwood, MA | 2009 |
| Aidan O'Brien, DC | 1225699234 | Chiropractor | Vienna, VA | 2019 |
| Aidan O'Brien, MD | 1417917691 | Anesthesiology Physician | Whittier, CA | 2006 |
| Aidan O'Brien | 1528822459 | Physical Therapist | West Grove, PA | 2024 |
| Aidan O'Brien, OTD, OTR/L | 1750233615 | Occupational Therapist | McKinney, TX | 2026 |
| Aishleen O'Brien, MFTA | 1063240539 | Marriage & Family Therapist | Seattle, WA | 2024 |
| Alana O'Brien, LPCC | 1528937661 | Professional Counselor | Fort Collins, CO | 2025 |
| Alannah O'Brien, MD | 1053019356 | General Practice Physician | Tacoma, WA | 2023 |
| Alejandra O'Brien | 1619219805 | Emergency Medicine Physician | Chicago, IL | 2013 |
| Alex O'Brien, DNP, PMHNP-BC | 1427778315 | Psychiatric/Mental Health Nurse Practitioner | Urbana, IL | 2022 |
| Alex O'Brien, NP | 1609632470 | Adult Health Nurse Practitioner | Rochester, NY | 2024 |
| Alexa O'Brien | 1780368456 | Behavior Analyst | Newtown, PA | 2023 |
| Alexander O'Brien | 1437955846 | Clinical Social Worker | Cincinnati, OH | 2025 |
| Alexander O'Brien, PMHNP | 1598420770 | Psychiatric/Mental Health Nurse Practitioner | Chestnut Hill, MA | 2021 |
| Alexandra O'Brien, LCSW | 1154070993 | Clinical Social Worker | Marianna, FL | 2022 |
| Alexandra O'Brien, OT | 1346707585 | Occupational Therapist | Wayne, PA | 2019 |
| Alexandra O'Brien, P.T. | 1538475389 | Physical Therapist | Long Beach, NY | 2010 |
| Alexandra O'Brien, LISW | 1861030793 | Social Worker | Medina, OH | 2019 |
| Alexandria O'Brien, NP | 1295508455 | Family Nurse Practitioner | Wichita, KS | 2023 |
| Alexis O'Brien, PHYSICIAN ASSISTANT | 1386231520 | Medical Physician Assistant | Milford, MA | 2020 |
| Alexis O'Brien, PT, DPT | 1417639857 | Physical Therapist | Surprise, AZ | 2023 |
| Alfred O'Brien, PA-C | 1801994504 | Physician Assistant | Butte, MT | 2006 |
| Alia O'Brien | 1578433629 | Behavior Technician | Champaign, IL | 2025 |
| Alice O'Brien, LPCMH | 1194097428 | Counselor | Wilmington, DE | 2012 |
| Alice O'Brien, M.A., CCC-SLP | 1497026900 | Speech-Language Pathologist | Liberty, MO | 2012 |
| Alicia O'Brien | 1295802817 | Physical Therapist | Scarsdale, NY | 2006 |
| Alicia O'Brien, LMP | 1316087570 | Specialist | Puyallup, WA | 2007 |
| Alicia O'Brien | 1528858784 | Nurse Practitioner | Tallahassee, FL | 2025 |
| Alina O'Brien, DDS | 1104359793 | Pediatric Dentistry | Philadelphia, PA | 2017 |
| Alisa O'Brien, LMHC | 1578019501 | Mental Health Counselor | North Baldwin, NY | 2016 |
| Alison O'Brien, PHARM.D. | 1295981322 | Pharmacist | Dallas, TX | 2008 |
| Alison O'Brien | 1316637861 | Athletic Trainer | Walnut Creek, CA | 2023 |
| Alison O'Brien, MD | 1427042571 | Family Medicine Physician | Delhi, NY | 2005 |
| Alison O'Brien, DO | 1548604093 | Internal Medicine Physician | Rochester, NY | 2013 |
| Alison O'Brien | 1740713353 | Pharmacist | Antioch, CA | 2017 |
| Alison O'Brien, PNP-PC | 1932905700 | Pediatric Nurse Practitioner | Greenwood, IN | 2025 |
| Alissa O'Brien, M.D. | 1538394960 | Dermatology Physician | Palm Beach Gardens, FL | 2009 |
| Alissa O'Brien, COTA | 1679342497 | Occupational Therapy Assistant | Carrollton, TX | 2023 |
| Alix O'Brien, P.A. | 1962534032 | Surgical Physician Assistant | Glenwood Springs, CO | 2007 |
| Allison O'Brien, BCBA | 1215658166 | Behavior Analyst | Clemmons, NC | 2022 |
| Allison O'Brien, MSW | 1225174386 | Social Worker | Orchard Park, NY | 2007 |
| Allison O'Brien, DMD | 1225292840 | General Practice Dentistry | Lakewood Ranch, FL | 2008 |
| Allison O'Brien, LMFT | 1396137253 | Marriage & Family Therapist | Dunwoody, GA | 2015 |
| Allison O'Brien, PA-C | 1528431368 | Physician Assistant | Truckee, CA | 2015 |
| Allison O'Brien | 1568196905 | Registered Nurse | Cleveland, OH | 2022 |
| Allison O'Brien | 1760325195 | Student in an Organized Health Care Education/Training Program | Irvine, CA | 2026 |
| Allison O'Brien, M.A., CCC-SLP/LIC. | 1912214875 | Speech-Language Pathologist | Syracuse, NY | 2010 |
| Allison O'Brien, DO | 1942052402 | Student in an Organized Health Care Education/Training Program | Indianapolis, IN | 2024 |
| Alyce O'Brien, DDS | 1285789263 | General Practice Dentistry | Tacoma, WA | 2007 |
| Alysia O'Brien, FNP | 1972810752 | Family Nurse Practitioner | Woonsocket, RI | 2010 |
| Alyssa O'Brien, RD | 1023483799 | Registered Dietitian | Portland, OR | 2015 |
| Alyssa O'Brien | 1427988039 | Pharmacist | Duluth, MN | 2026 |
| Alyssa O'Brien, WHNP | 1841548476 | Women's Health Nurse Practitioner | Houston, TX | 2012 |
| Alyssa O'Brien, PA-C | 1922591742 | Surgical Physician Assistant | Madison, WI | 2018 |
| Alyssa O'Brien, D.C. | 1972830032 | Chiropractor | Neenah, WI | 2009 |
| Amanda O'Brien | 1023826252 | Adult Companion | Grand Island, NE | 2024 |
| Amanda O'Brien, MD | 1184852162 | Obstetrics & Gynecology Physician | Springfield, IL | 2009 |
| Amanda O'Brien, RBT | 1285127985 | Behavior Technician | Edwardsville, IL | 2018 |
| Amanda O'Brien, MS, CCC-SLP | 1396194379 | Speech-Language Pathologist | Waltham, MA | 2016 |
| Amanda O'Brien, OTR/L | 1548533136 | Occupational Therapist | Wichita, KS | 2012 |
| Amanda O'Brien, RN | 1619627247 | Registered Nurse | Archbold, OH | 2022 |
| Amanda O'Brien | 1659927846 | Mental Health Counselor | New York, NY | 2019 |
| Amanda O'Brien | 1861982308 | Certified Registered Nurse Anesthetist | Camden, NJ | 2018 |
| Amanda O'Brien, FNP-BC | 1871186544 | Family Medicine Physician | Stockton, CA | 2021 |
| Amanda O'Brien, DMD | 1952035651 | Dentist | Bethel, AK | 2022 |
| Amber O'Brien, CD(DONA), CLS | 1245553536 | Doula | South Bend, IN | 2010 |
| Amelia O'Brien, LMSW | 1003667577 | Social Worker | Elmhurst, NY | 2024 |
| Amelia O'Brien | 1265162069 | Addiction (Substance Use Disorder) Counselor | Reading, MA | 2022 |
| Amorette O'Brien, MSFT | 1942816996 | Marriage & Family Therapist | Windham, NH | 2020 |
| Amy O'Brien, FNP | 1023480365 | Family Nurse Practitioner | Bloomington, IL | 2015 |
| Amy O'Brien, LCSW | 1114704780 | Clinical Social Worker | Oregon, WI | 2023 |
| Amy O'Brien, MS, CCC-SLP | 1124149810 | Speech-Language Pathologist | Stafford, VA | 2007 |
| Amy O'Brien | 1164230751 | Occupational Therapy Assistant | Honolulu, HI | 2024 |
| Amy O'Brien | 1184034233 | Behavior Analyst | Troy, MI | 2014 |
| Amy O'Brien, M.A. S.L.P. | 1285726752 | Speech-Language Pathologist | Amherst, OH | 2006 |
| Amy O'Brien, OTR | 1306095856 | Occupational Therapist | Wakefield, RI | 2008 |
| Amy O'Brien, NP | 1427782358 | Nurse Practitioner | Lynnfield, MA | 2022 |
| Amy O'Brien | 1457708406 | Marriage & Family Therapist | Antioch, CA | 2016 |
| Amy O'Brien, LPCC | 1497842082 | Professional Counselor | Albuquerque, NM | 2006 |
| Amy O'Brien | 1518210566 | Registered Nurse | Clinton, NY | 2012 |
| Amy O'Brien | 1528678042 | Personal Care Attendant | Hinton, WV | 2020 |
| Amy O'Brien, L.M.T. | 1548387434 | Specialist | Seattle, WA | 2007 |
| Amy O'Brien | 1659839405 | Speech-Language Pathologist | Davie, FL | 2019 |
| Amy O'Brien, MSW | 1770800203 | Social Worker | Fort Wayne, IN | 2010 |
| Amy O'Brien, MPT | 1891197430 | Physical Therapist | Brookfield, WI | 2014 |
| Ana-Alicia O'Brien, MOT | 1568227619 | Pediatric Occupational Therapist | Albuquerque, NM | 2024 |
| Andrea O'Brien, PT, MS | 1013110600 | Pediatric Physical Therapist | Watertown, MA | 2007 |
| Andrea O'Brien | 1063932200 | Pediatrics Physician | Hershey, PA | 2017 |
| Andrea O'Brien, OTR/L, CLT | 1083102685 | Occupational Therapist | Louisville, KY | 2018 |
| Andrea O'Brien, M.A. | 1326290099 | Speech-Language Pathologist | Rochester, NY | 2008 |
| Andrea O'Brien, MS OTR/L | 1356613764 | Occupational Therapist | Utica, NY | 2012 |
| Andrea O'Brien | 1386200871 | Massage Therapist | Troutdale, OR | 2019 |
| Andrea O'Brien, RDN | 1396146155 | Registered Dietitian | Spokane, WA | 2014 |
| Andrea O'Brien | 1528410412 | Speech-Language Pathologist | Clarion, PA | 2016 |
| Andrea O'Brien, LPCC | 1891065405 | Professional Counselor | Cleveland, OH | 2012 |
| Andrea O'Brien, CRNP | 1942919691 | Pediatric Nurse Practitioner | Philadelphia, PA | 2022 |
| Andrew O'Brien | 1083181267 | Behavior Analyst | Colorado Springs, CO | 2018 |
| Andrew O'Brien, NP | 1295553378 | Adult Health Nurse Practitioner | San Francisco, CA | 2024 |
| Andrew O'Brien, MD | 1336660034 | Surgery of the Hand (Plastic Surgery) Physician | Columbus, OH | 2017 |
| Andrew O'Brien, LMSW | 1336887223 | Clinical Social Worker | Traverse City, MI | 2022 |
| Andrew O'Brien, LPC | 1598038135 | Mental Health Counselor | Penndel, PA | 2012 |
| Andrew O'Brien, MS, OTR/L | 1811215502 | Occupational Therapist | Tampa, FL | 2010 |
| Andrew O'Brien, MD | 1962848507 | Hematology & Oncology Physician | Indianapolis, IN | 2013 |
| Angela O'Brien | 1215424932 | Physical Therapist | Wyoming, MI | 2018 |
| Angela O'Brien, LCSW | 1285308452 | Clinical Social Worker | Oakland, CA | 2021 |
| Angela O'Brien, BCBA | 1295003762 | Behavior Analyst | Hanover, PA | 2011 |
| Angela O'Brien, MS OTR/L | 1578738530 | Occupational Therapist | Weymouth, MA | 2008 |
| Angela O'Brien, D.C. | 1619074317 | Chiropractor | Swampscott, MA | 2006 |
| Angela O'Brien, LSCSW | 1750723334 | Clinical Social Worker | Salina, KS | 2013 |
| Angela O'Brien, LSW | 1801667225 | Social Worker | Selinsgrove, PA | 2024 |
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).