Providers Kira O'Neil, RN, IBCLC to Alison O'Neill, MS, LCMHC
300 individual NPIs in the federal registry, part 16,045 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. 94 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Kira O'Neil, RN, IBCLC | 1831927482 | Lactation Consultant (Registered Nurse) | Snohomish, WA | 2024 |
| Kirsten O'Neil, MD | 1912029968 | Anesthesiology Physician | Fernandina Beach, FL | 2007 |
| Kristen O'Neil, LMSW | 1013281062 | Social Worker | Wantagh, NY | 2012 |
| Kristen O'Neil | 1083014708 | Student in an Organized Health Care Education/Training Program | Proctor, WV | 2014 |
| Kristin O'Neil, CRNA | 1801393723 | Certified Registered Nurse Anesthetist | Lebanon, NH | 2018 |
| Lakeisha O'Neil | 1659908176 | Physician Assistant | Minneapolis, MN | 2020 |
| Laura O'Neil, L.I.C.S.W. | 1346217494 | Clinical Social Worker | New Bedford, MA | 2006 |
| Lauren O'Neil | 1922587245 | Community Health Worker | Saint Louis, MO | 2018 |
| Laurie O'Neil | 1780374074 | Licensed Practical Nurse | Ellsworth, WI | 2023 |
| Leah O'Neil | 1306588231 | Behavior Technician | Bloomington, MN | 2022 |
| Leila O'Neil | 1841144300 | Behavior Technician | Tacoma, WA | 2026 |
| Liam O'Neil, PHARMD | 1457297103 | Pharmacy Technician | Fitchburg, WI | 2026 |
| Lily O'Neil | 1275486540 | Mental Health Counselor | Newton, MA | 2026 |
| Linda O'Neil, FNP | 1740323591 | Family Nurse Practitioner | Mooresville, NC | 2007 |
| Linda O'Neil, NP | 1740372226 | Family Nurse Practitioner | Springfield, MA | 2006 |
| Lindsay O'Neil, APRN-NP | 1508113929 | Nurse Practitioner | Omaha, NE | 2012 |
| Lindsey O'Neil, LMSW | 1477044675 | Clinical Social Worker | Kalamazoo, MI | 2018 |
| Lindsey O'Neil | 1629546494 | Physical Therapist | West Roxbury, MA | 2018 |
| Lindsey O'Neil, DO | 1871027045 | Internal Medicine Physician | Detroit, MI | 2017 |
| Linnae O'Neil | 1952849101 | Prevention Professional | Waterbury Center, VT | 2017 |
| Lisa O'Neil, DNP | 1215554324 | Nurse Practitioner | Bismarck, ND | 2020 |
| Lisa O'Neil, D.O. | 1437252749 | Internal Medicine Physician | Westland, MI | 2006 |
| Lisa O'Neil, LMFT | 1811208473 | Marriage & Family Therapist | Goshen, CT | 2010 |
| Lisa O'Neil, RN,BSN | 1881839207 | Registered Nurse | Everett, WA | 2008 |
| Lisa O'Neil, PT | 1912195777 | Physical Therapist | Minneapolis, MN | 2007 |
| Logan O'Neil, OTR/L | 1720675366 | Occupational Therapist | Gilbert, AZ | 2020 |
| Loren O'Neil, LMSW | 1275872517 | Social Worker | Brooklyn, NY | 2013 |
| Loren O'Neil, LMT, BCSI, CPT, FAFS | 1497492235 | Massage Therapist | Wheat Ridge, CO | 2022 |
| Lori O'Neil, LPN | 1669240370 | Licensed Practical Nurse | Las Vegas, NV | 2023 |
| Luanne O'Neil, RRW | 1023227790 | Addiction (Substance Use Disorder) Counselor | Santa Ana, CA | 2007 |
| Lucas O'Neil, PHARMD | 1801476635 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Lambertville, MI | 2021 |
| Lucille O'Neil, PT | 1780765552 | Pediatric Physical Therapist | Glen Allen, VA | 2006 |
| Luke O'Neil, M.D. | 1114450368 | Internal Medicine Physician | Minneapolis, MN | 2017 |
| Luke O'Neil, MBBS, MS | 1831936806 | Otolaryngology Physician | Seattle, WA | 2024 |
| Mackenzie O'Neil | 1649085812 | Physical Therapist | Coralville, IA | 2025 |
| Madeline O'Neil | 1033051834 | Family Nurse Practitioner | Boston, MA | 2026 |
| Madeline O'Neil | 1447637509 | Counselor | Portland, OR | 2015 |
| Mae O'Neil, CRNA | 1477529063 | Certified Registered Nurse Anesthetist | Slidell, LA | 2006 |
| Mandel O'Neil | 1750260527 | Health & Wellness Coach | Montclair, CA | 2025 |
| Marcie O'Neil, MSW, LISW-S | 1649374034 | Clinical Social Worker | Cincinnati, OH | 2006 |
| Marcus O'Neil | 1598335804 | Health Educator | Detroit, MI | 2021 |
| Marcy O'Neil, O.D. | 1881905172 | Optometrist | Jber, AK | 2010 |
| Maren O'Neil | 1447113410 | Student in an Organized Health Care Education/Training Program | Plymouth, NH | 2025 |
| Margaret O'Neil, PT, PHD, MPH | 1063021335 | Pediatric Physical Therapist | New York, NY | 2020 |
| Margaret O'Neil, PT | 1568045557 | Physical Therapist | Portsmouth, NH | 2021 |
| Margaret O'Neil, DPT | 1831978642 | Physical Therapist | Lansing, MI | 2023 |
| Marie O'Neil, LCSW | 1316196868 | Clinical Social Worker | New Orleans, LA | 2008 |
| Marie O'Neil, MS, LMHC | 1396991154 | Mental Health Counselor | North Reading, MA | 2008 |
| Marina O'Neil, SLP | 1649419151 | Speech-Language Pathologist | Windsor, CT | 2009 |
| Marissa O'Neil, M.S., CCC-SLP | 1548974439 | Speech-Language Pathologist | Edgewater, FL | 2023 |
| Marjorie O'Neil, DMD | 1558624973 | General Practice Dentistry | Eight Mile, AL | 2012 |
| Marlena O'Neil, APRN | 1023654480 | Family Nurse Practitioner | Elizabethtown, KY | 2019 |
| Mary O'Neil, PSY.D. | 1104132596 | Professional Counselor | Bardstown, KY | 2010 |
| Mary O'Neil, LDO | 1366201212 | Optician | Oneida, NY | 2024 |
| Mary O'Neil, LCSW | 1407985500 | Clinical Social Worker | Westbrook, ME | 2007 |
| Mary O'Neil | 1578847968 | Registered Nurse | Plymouth Meeting, PA | 2011 |
| Mary O'Neil, M.S., MFT | 1699827782 | Marriage & Family Therapist | Walnut Creek, CA | 2007 |
| Mary O'Neil, LICSW | 1730358623 | Clinical Social Worker | Rochester, MN | 2008 |
| Mary Evelyn O'Neil, M.D. | 1982865820 | Pediatrics Physician | Birmingham, AL | 2008 |
| Matthew O'Neil, P.T. | 1508835760 | Physical Therapist | Mechanicville, NY | 2006 |
| Matthew O'Neil, D.P.T. | 1578851267 | Physical Therapist | Westampton, NJ | 2011 |
| Matthew O'Neil, DDS | 1750910006 | General Practice Dentistry | Kyle, TX | 2020 |
| Matthew O'Neil, M.D. | 1942687843 | Family Medicine Physician | Dayton, OH | 2015 |
| Maura O'Neil, M.D. | 1083746283 | Anatomic Pathology & Clinical Pathology Physician | Kansas City, KS | 2007 |
| Maureen O'Neil, LCSW | 1245456334 | Clinical Social Worker | San Francisco, CA | 2007 |
| Maureen O'Neil, LICSW | 1629664925 | Clinical Social Worker | Springfield, MA | 2020 |
| Maya O'Neil, M.S. | 1881762706 | Psychologist | Portland, OR | 2006 |
| Meagan O'Neil | 1790107340 | Certified Registered Nurse Anesthetist | Kalamazoo, MI | 2014 |
| Meaghan O'Neil | 1396526935 | Marriage & Family Therapist | Seattle, WA | 2023 |
| Megan O'Neil, M.S., CCC-SLP | 1255619532 | Speech-Language Pathologist | Washington, DC | 2011 |
| Megan O'Neil | 1417627779 | Student in an Organized Health Care Education/Training Program | Canfield, OH | 2021 |
| Megan O'Neil, ARNP | 1558921452 | Family Nurse Practitioner | Gordon, NE | 2019 |
| Megan O'Neil, CNP | 1588312763 | Nurse Practitioner | Westlake, OH | 2022 |
| Megan O'Neil, PA | 1881934099 | Physician Assistant | Charlotte, NC | 2013 |
| Meghan O'Neil, MD | 1154333094 | Psychiatry Physician | Portland, OR | 2006 |
| Meghan O'Neil, CCC-SLP, TSSLD | 1992498737 | Speech-Language Pathologist | Albany, NY | 2023 |
| Melinda O'Neil, MA, APCC | 1841043726 | Mental Health Counselor | San Carlos, CA | 2024 |
| Melinda O'Neil, CANP | 1982885315 | Adult Health Nurse Practitioner | Albuquerque, NM | 2007 |
| Melissa O'Neil, OT | 1205115441 | Occupational Therapist | Valley, NE | 2011 |
| Melissa O'Neil, APRN | 1992359467 | Family Nurse Practitioner | Pensacola, FL | 2019 |
| Meredith O'Neil, PHARMD | 1821637539 | Pediatric Pharmacist | Cincinnati, OH | 2019 |
| Mervin O'Neil, MD | 1972681641 | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Sacramento, CA | 2006 |
| Miata O'Neil, LCSW | 1679898662 | Clinical Social Worker | Stockbridge, GA | 2010 |
| Michael O'Neil | 1205515723 | Peer Specialist | Buffalo, NY | 2023 |
| Michael O'Neil, D.M.D. | 1205933108 | Oral and Maxillofacial Surgery (Dentist) | Edmonds, WA | 2006 |
| Michael O'Neil, DDS | 1265474076 | General Practice Dentistry | Fishers, IN | 2006 |
| Michael O'Neil, M.D. | 1336160068 | Anesthesiology Physician | Billings, MT | 2006 |
| Michael O'Neil, M.D. | 1376988600 | Emergency Medicine Physician | Philadelphia, PA | 2013 |
| Michael O'Neil, M.D. | 1396704854 | Orthopaedic Surgery Physician | Omaha, NE | 2006 |
| Michael O'Neil, O.D. | 1407038656 | Optometrist | Groton, MA | 2007 |
| Michael O'Neil, D.O. | 1417185257 | Emergency Medicine Physician | West Columbia, SC | 2009 |
| Michael O'Neil, D.D.S. | 1518290329 | General Practice Dentistry | Longboat Key, FL | 2009 |
| Michaela O'Neil, LMHC | 1215529961 | Mental Health Counselor | West Palm Beach, FL | 2021 |
| Michaela O'Neil | 1508235615 | Physical Therapist | Erie, PA | 2015 |
| Michaela O'Neil, DPT | 1811475767 | Physical Therapist | Norwalk, CT | 2018 |
| Michele O'Neil, PHARMD | 1639761075 | Pharmacist | North Port, FL | 2021 |
| Michelle O'Neil, PA | 1568736411 | Physician Assistant | Grand Rapids, MI | 2012 |
| Michelle O'Neil, LPC | 1881346021 | Mental Health Counselor | Littleton, CO | 2022 |
| Misty O'Neil, OT | 1912025370 | Occupational Therapist | Muncie, IN | 2007 |
| Mitchell O'Neil, LAT, ATC | 1568903631 | Athletic Trainer | Superior, WI | 2017 |
| Mollie O'Neil, M.S. CF-SLP | 1295408599 | Speech-Language Pathologist | Phoenix, AZ | 2021 |
| Molly O'Neil, M.ED., LPC | 1154240208 | Professional Counselor | Fort Worth, TX | 2026 |
| Molly O'Neil, DO | 1245975713 | Emergency Medicine Physician | South Hill, VA | 2022 |
| Molly O'Neil, MS | 1417460593 | Speech-Language Pathologist | Brookline, MA | 2017 |
| Molly O'Neil, PSYD | 1568512416 | Clinical Psychologist | Olympia, WA | 2007 |
| Molly O'Neil | 1770277055 | Behavior Technician | Metairie, LA | 2023 |
| Molly O'Neil | 1811489768 | Clinical Social Worker | Dorchester, MA | 2018 |
| Monique O'Neil, PA | 1194760181 | Physician Assistant | Bay Shore, NY | 2006 |
| Nancy O'Neil, M.A. MFT | 1275845802 | Marriage & Family Therapist | Bakersfield, CA | 2010 |
| Nancy O'Neil, CRNA | 1457398497 | Certified Registered Nurse Anesthetist | Springfield, MA | 2006 |
| Nancy O'Neil, LCSW | 1598070575 | Clinical Social Worker | Pleasant Hill, CA | 2010 |
| Nancy O'Neil, MD | 1629064209 | Obstetrics & Gynecology Physician | Spokane, WA | 2005 |
| Nathaniel O'Neil, LCSW | 1801468616 | Clinical Social Worker | Lake Grove, NY | 2021 |
| Nerea O'Neil, CMI | 1851189286 | Interpreter | East Wareham, MA | 2025 |
| Nial O'Neil | 1972075182 | Behavior Analyst | Sacramento, CA | 2018 |
| Nicholas O'Neil, MD | 1417963372 | Anesthesiology Physician | Lafayette, IN | 2006 |
| Nicholas O'Neil, DPT | 1730674854 | Physical Therapist | Bonita, CA | 2018 |
| Nicole O'Neil, CNM | 1073744926 | Advanced Practice Midwife | Muncie, IN | 2009 |
| Nicole O'Neil, PHARMD | 1487092102 | Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist | Brockton, MA | 2013 |
| Nicole O'Neil, FNP | 1548776446 | Primary Care Nurse Practitioner | Menifee, CA | 2017 |
| Nina O'Neil, DO | 1477493823 | Student in an Organized Health Care Education/Training Program | Louisville, KY | 2026 |
| Olivia O'Neil | 1730968512 | Family Nurse Practitioner | Dallas, TX | 2023 |
| Page O'Neil, LPN | 1922557149 | Licensed Practical Nurse | Rochester, NY | 2016 |
| Paige O'Neil, PHARM.D. | 1043917099 | Pharmacist | Pittsburgh, PA | 2023 |
| Paige O'Neil, MS, RDN, LDN, CNSC | 1508591934 | Registered Dietitian | Johnson City, NY | 2022 |
| Pamela O'Neil, APRN | 1457624751 | Nurse Practitioner | Henderson, NV | 2012 |
| Patricia O'Neil, ARNP | 1033225065 | Gerontology Nurse Practitioner | Gainesville, FL | 2006 |
| Patricia O'Neil, CRNA | 1205876851 | Certified Registered Nurse Anesthetist | Milford, CT | 2006 |
| Patricia O'Neil, MS | 1356437149 | Mental Health Counselor | Merrimack, NH | 2006 |
| Patricia O'Neil | 1710438221 | Behavior Technician | Brighton, MI | 2016 |
| Patrick O'Neil, M.D. | 1033400379 | Family Medicine Physician | Brunswick, MD | 2011 |
| Patrick O'Neil, DMD | 1073818613 | Orthodontics and Dentofacial Orthopedics Dentistry | Daphne, AL | 2011 |
| Patrick O'Neil | 1235794090 | Addiction (Substance Use Disorder) Counselor | Santa Fe Springs, CA | 2019 |
| Patrick O'Neil, M.D. | 1467412163 | Anesthesiology Physician | Lafayette, IN | 2006 |
| Patrick O'Neil, PHD | 1821106865 | Psychologist | Charleston, SC | 2006 |
| Patrick O'Neil, MD | 1871153205 | Family Medicine Physician | Lawrence, MA | 2019 |
| Patrick O'Neil | 1962880658 | Behavior Analyst | Novi, MI | 2015 |
| Patrick O'Neil | 1962880849 | Physical Therapist | Saint Paul, MN | 2015 |
| Patrick O'Neil | 1972754174 | Electroneurodiagnostic Specialist/Technologist | Olympia, WA | 2008 |
| Paul O'Neil | 1699189779 | Physical Therapist | Pennington, NJ | 2014 |
| Payge O'Neil | 1588377287 | Other Technician | Flint, MI | 2022 |
| Peter O'Neil, LCSW | 1821170036 | Clinical Social Worker | Ogden, UT | 2006 |
| Phoenix O'Neil | 1790641272 | Case Manager/Care Coordinator | Moraine, OH | 2025 |
| Pooja O'Neil, M.D | 1053730531 | Anesthesiology Physician | Hershey, PA | 2014 |
| Priscila O'Neil | 1215825948 | Interpreter | Huntersville, NC | 2025 |
| Rachael O'Neil | 1073013371 | Speech-Language Pathologist | Gardner, MA | 2018 |
| Rachael O'Neil, RN | 1093393480 | Psychiatric/Mental Health Nurse Practitioner | Dublin, OH | 2021 |
| Randie O'Neil, MA, PHD, LCADC | 1073351060 | Professional Counselor | Easton, PA | 2024 |
| Randy O'Neil, PT | 1598137119 | Physical Therapist | Salem, NH | 2015 |
| Raphaelle O'Neil | 1447635933 | Massage Therapist | New Orleans, LA | 2015 |
| Rebecca O'Neil, CRM | 1700639234 | Peer Specialist | Medford, OR | 2024 |
| Riley O'Neil, M.D. | 1568887412 | Pediatrics Physician | Hershey, PA | 2014 |
| Riley O'Neil | 1972262285 | Behavior Technician | Merrillville, IN | 2021 |
| Robert O'Neil | 1568718898 | Nurse's Aide | Denver, CO | 2012 |
| Robert O'Neil, LICSW | 1659360618 | Clinical Social Worker | Warwick, RI | 2005 |
| Robin O'Neil | 1366949901 | Mental Health Counselor | Cayce, SC | 2018 |
| Robyn O'Neil | 1902420870 | Personal Care Attendant | Las Vegas, NV | 2020 |
| Rochelle O'Neil, PHD | 1487180394 | Psychologist | Gahanna, OH | 2017 |
| Rosanna O'Neil, RN | 1538539440 | Psychiatric/Mental Health Registered Nurse | Colorado Springs, CO | 2015 |
| Rosie O'Neil | 1053202853 | Marriage & Family Therapist | Federal Way, WA | 2025 |
| Roy O'Neil, DO | 1275911968 | Anesthesiology Physician | Phoenix, AZ | 2015 |
| Ryan O'Neil | 1326505389 | Athletic Trainer | Lawrence, KS | 2019 |
| Ryan O'Neil | 1740060037 | Behavior Technician | Kailua Kona, HI | 2023 |
| Ryan O'Neil | 1780276642 | Behavior Technician | Worcester, MA | 2021 |
| Saij O'Neil | 1932723137 | Behavior Analyst | Tacoma, WA | 2020 |
| Samantha O'Neil | 1013745751 | Physician Assistant | Saint Marys, PA | 2024 |
| Samantha O'Neil | 1588381719 | Athletic Trainer | Marysville, PA | 2022 |
| Samantha O'Neil, PA-C | 1659948362 | Physician Assistant | Worcester, MA | 2021 |
| Sarah O'Neil | 1003241241 | Massage Therapist | Roseville, MN | 2013 |
| Sarah O'Neil, MA, CCC-SLP | 1063723658 | Speech-Language Pathologist | Jordan, NY | 2010 |
| Sarah O'Neil, NP | 1073933214 | Gerontology Nurse Practitioner | Somers Point, NJ | 2014 |
| Sarah O'Neil, LMT | 1508009531 | Specialist | Solana Beach, CA | 2009 |
| Sarah O'Neil, PA-C | 1659867380 | Physician Assistant | Baton Rouge, LA | 2018 |
| Scott O'Neil, D.D.S. | 1184638801 | General Practice Dentistry | Nebraska City, NE | 2006 |
| Scott O'Neil, MD | 1790367092 | Student in an Organized Health Care Education/Training Program | Seattle, WA | 2021 |
| Sean O'Neil, MD | 1437738606 | Student in an Organized Health Care Education/Training Program | La Crosse, WI | 2021 |
| Sean O'Neil, M.D. | 1588985246 | Infectious Disease Physician | San Antonio, TX | 2010 |
| Sean O'Neil, LCSW | 1952735698 | Clinical Social Worker | Fairbanks, AK | 2013 |
| Shakira O'Neil | 1568814853 | Case Manager/Care Coordinator | Philadelphia, PA | 2016 |
| Shane O'Neil, PA | 1922350073 | Physician Assistant | Johnson City, NY | 2012 |
| Shane O'Neil, M.D. | 1942629795 | Dermatology Physician | Haverhill, MA | 2014 |
| Shannon O'Neil | 1659928760 | Clinical Social Worker | Springfield, MA | 2019 |
| Shantreas O'Neil, LCSW | 1639685332 | Clinical Social Worker | Atlanta, GA | 2017 |
| Sharlene O'Neil | 1144633033 | Mental Health Counselor | Tigard, OR | 2014 |
| Sharon O'Neil | 1942479688 | Child & Adolescent Psychiatry Physician | Los Angeles, CA | 2008 |
| Shaunette O'Neil | 1003658121 | Behavior Analyst | Hoffman Estates, IL | 2024 |
| Shawn O'Neil | 1790290773 | Optician | Rochester, NY | 2017 |
| Shawna O'Neil, MS, CCC-SLP | 1184036113 | Speech-Language Pathologist | Danbury, CT | 2014 |
| Sheaundra O'Neil, LPC | 1982146593 | Professional Counselor | Houston, TX | 2016 |
| Shelby O'Neil, LMT | 1578267274 | Massage Therapist | Seattle, WA | 2023 |
| Shelley O'Neil | 1144208604 | Physician Assistant | Aurora, CO | 2006 |
| Shirley O'Neil, MHPP | 1124469077 | Case Manager/Care Coordinator | Jonesboro, AR | 2013 |
| Shirley O'Neil, M.ED., LPC | 1497052351 | Professional Counselor | Boise, ID | 2011 |
| Sieglinde O'Neil, RD/LD | 1134855224 | Registered Dietitian | Akron, OH | 2022 |
| Siobhan O'Neil, LSW | 1033750690 | Social Worker | Hasbrouck Heights, NJ | 2019 |
| Skye O'Neil, PA-C | 1760605182 | Physician Assistant | Wheat Ridge, CO | 2007 |
| Stacie O'Neil, APRN | 1508533712 | Gerontology Nurse Practitioner | Louisville, KY | 2021 |
| Stefaniee O'Neil | 1568776581 | Case Manager/Care Coordinator | Buffalo, NY | 2010 |
| Stephanie O'Neil | 1689177602 | Marriage & Family Therapist | Oceanside, CA | 2018 |
| Stephanie O'Neil | 1912880816 | Nurse Practitioner | Portsmouth, NH | 2025 |
| Stephen O'Neil, D.O. | 1336521756 | Orthopaedic Surgery Physician | Grand Rapids, MI | 2015 |
| Stephen O'Neil, MD | 1629009956 | Surgery Physician | Greenwood, IN | 2006 |
| Stephen O'Neil, M.D. | 1972506699 | Pain Medicine (Physical Medicine & Rehabilitation) Physician | Beaumont, TX | 2005 |
| Steve O'Neil, RBT | 1730809385 | Behavior Technician | Silver Spring, MD | 2022 |
| Susan O'Neil, R.N. | 1114204500 | Registered Nurse | Syracuse, NY | 2011 |
| Susan O'Neil, LICSW | 1265470124 | Clinical Social Worker | Lowell, MA | 2006 |
| Susan O'Neil, LMHC | 1639226772 | Mental Health Counselor | Largo, FL | 2007 |
| Susan O'Neil, M.D. | 1659373181 | Pediatrics Physician | The Woodlands, TX | 2005 |
| Susan O'Neil, CNP | 1861743544 | Adult Health Nurse Practitioner | New Bern, NC | 2012 |
| Tah'Quontese O'Neil, MSW | 1356488142 | Social Worker | Las Vegas, NV | 2007 |
| Tamie O'Neil, L.M.H.C | 1689019119 | Mental Health Counselor | Sprakers, NY | 2013 |
| Tammy O'Neil | 1871797787 | Occupational Therapy Assistant | North Canton, OH | 2007 |
| Tanya O'Neil, OTR | 1881988475 | Occupational Therapist | Springfield, MA | 2011 |
| Tara O'Neil, LCSW | 1043797020 | Clinical Social Worker | Bridgeport, CT | 2018 |
| Tara O'Neil | 1386421014 | Case Manager/Care Coordinator | Ann Arbor, MI | 2023 |
| Taryn O'Neil | 1093597718 | Clinical Social Worker | South Weymouth, MA | 2023 |
| Taryn O'Neil, LCPC | 1467042432 | Professional Counselor | Chicago, IL | 2021 |
| Taryn O'Neil, BA | 1548873052 | Case Manager/Care Coordinator | Concord, NH | 2020 |
| Taylor O'Neil, MD | 1295361517 | Family Medicine Physician | Scott Air Force Base, IL | 2020 |
| Terence O'Neil, M.D. | 1528093267 | Emergency Medicine Physician | Long Beach, CA | 2006 |
| Teri O'Neil, FAMILY NURSE PRACTIT | 1528241585 | Family Nurse Practitioner | Columbia, MD | 2007 |
| Terrance O'Neil | 1760537203 | Social Worker | Binghamton, NY | 2007 |
| Terrence O'Neil, MD | 1790893071 | Nephrology Physician | Mountain Home, TN | 2006 |
| Terry O'Neil, PHD | 1790882454 | Clinical Psychologist | Bellevue, WA | 2006 |
| Theresa O'Neil, RDH | 1053648014 | Dental Hygienist | Thompson Falls, MT | 2009 |
| Thomas O'Neil, DDS | 1013012087 | General Practice Dentistry | Tamarac, FL | 2006 |
| Thomas O'Neil | 1144924127 | Family Medicine Physician | Rocky Mount, VA | 2023 |
| Thomas O'Neil, MD | 1336841584 | Student in an Organized Health Care Education/Training Program | Cleveland, OH | 2023 |
| Thomas O'Neil, M.D. | 1407019136 | Family Medicine Physician | Livonia, MI | 2008 |
| Thomas O'Neil, RPH | 1669917258 | Pharmacist | Austin, TX | 2017 |
| Thomas O'Neil, MD | 1831162999 | Ophthalmology Physician | Tracy, CA | 2006 |
| Tiffane O'Neil | 1093957540 | Physical Therapist | Leland, NC | 2009 |
| Tiffany O'Neil | 1063203586 | Peer Specialist | Springfield, OR | 2025 |
| Tiffany O'Neil, RN | 1295005338 | Registered Nurse | Columbus, OH | 2012 |
| Timothy O'Neil, RPH | 1205012283 | Pharmacist | Vestal, NY | 2008 |
| Timothy O'Neil, PA-C | 1447779400 | Physician Assistant | San Diego, CA | 2017 |
| Timothy O'Neil, D.C. | 1497020051 | Chiropractor | Chanhassen, MN | 2012 |
| Timothy O'Neil, MD | 1629031133 | Pediatrics Physician | Richmond, VA | 2006 |
| Todd O'Neil, DDS | 1942411764 | Dentist | Overland Park, KS | 2007 |
| Tonya O'Neil, MD | 1528589462 | Family Medicine Physician | North Attleboro, MA | 2017 |
| Tracy O'Neil, DNP, C-PNP | 1235297987 | Pediatric Nurse Practitioner | Pinehurst, NC | 2006 |
| Trevor O'Neil, D.D.S. | 1528294865 | General Practice Dentistry | Schenectady, NY | 2009 |
| Trianna O'Neil | 1891509451 | Behavior Technician | Indianapolis, IN | 2025 |
| Tyler O'Neil, MD | 1164087243 | Anesthesiology Physician | Springfield, MA | 2019 |
| Vicky O'Neil | 1396847380 | Acute Care Nurse Practitioner | St George, UT | 2006 |
| Victoria O'Neil, MD | 1285261461 | Pediatric Critical Care Medicine Physician | Austin, TX | 2020 |
| Victoria O'Neil | 1750215174 | Social Worker | Boise, ID | 2026 |
| Vivian O'Neil, DMD | 1932959111 | General Practice Dentistry | Rockingham, VA | 2024 |
| Willam O'Neil | 1821758681 | Mental Health Counselor | Wakefield, MA | 2021 |
| William O'Neil | 1952862401 | Behavior Technician | Farmington Hills, MI | 2019 |
| William O'Neil, ANP | 1962594085 | Gerontology Nurse Practitioner | Springfield, MA | 2006 |
| Wilma O'Neil, PHARM D, R.P. | 1285917716 | Pharmacist | Fort Collins, CO | 2011 |
| Wyatt O'Neil | 1619429479 | Student in an Organized Health Care Education/Training Program | Green Bay, WI | 2016 |
| Tanaya O'Neil Jackson | 1811689672 | Behavior Technician | Virginia Beach, VA | 2023 |
| Courtney O'Neil Savage, AUD | 1881627164 | Audiologist | Warwick, RI | 2006 |
| Karen O'Neil Wetherbee, ARNP | 1619997723 | Family Nurse Practitioner | Manchester, NH | 2006 |
| Frances O'Neil- Hoppe | 1548413750 | Registered Dietitian | Orange, CA | 2008 |
| Bryar O'Neil-Baum | 1972493922 | Behavior Technician | Colorado Springs, CO | 2025 |
| Maureen O'Neil-Britt, NP | 1780045641 | Family Nurse Practitioner | Boston, MA | 2016 |
| Kristin O'Neil-Callahan, M.D. | 1215985445 | Internal Medicine Physician | Peabody, MA | 2006 |
| Micaela O'Neil-Callahan, M.D. | 1568783850 | Obstetrics & Gynecology Physician | Saint Louis, MO | 2010 |
| Sandra O'Neil-Callahan, WHNP-BC | 1114279502 | Women's Health Nurse Practitioner | St Louis, MO | 2012 |
| Jennifer O'Neil-Curley, LCSW | 1477071967 | Clinical Social Worker | Wilmington, DE | 2017 |
| Brian O'Neil-Dominguez | 1013637222 | Behavior Technician | Napa, CA | 2022 |
| Aeden O'Neil-Dunne | 1679032718 | Case Manager/Care Coordinator | Bellevue, WA | 2019 |
| Shane O'Neil-Hart | 1962828962 | Counselor | San Francisco, CA | 2014 |
| Maureen O'Neil-Orcutt, M.S. OTRL | 1033232905 | Specialist | Worcester, MA | 2007 |
| Therese O'Neil-Pirozzi, SCD., CCC-SLP | 1639407901 | Speech-Language Pathologist | Boston, MA | 2009 |
| Lori O'Neil-Stevens | 1396685954 | Addiction (Substance Use Disorder) Counselor | Knoxville, TN | 2026 |
| Colleen O'Neil-Tennant, MD | 1194286047 | Adult Medicine Physician | Oakhurst, CA | 2019 |
| Olivia O'Neil-Zwicker | 1023787801 | Behavior Technician | Berkeley, CA | 2021 |
| Angela O'Neilin | 1598885360 | Mental Health Counselor | Santa Barbara, CA | 2007 |
| Aaron O'Neill, MD | 1043158272 | Student in an Organized Health Care Education/Training Program | Portsmouth, VA | 2026 |
| Abbigail O'Neill, SLP | 1306603006 | Speech-Language Pathologist | Fayetteville, AR | 2024 |
| Abigail O'Neill | 1568183390 | Rehabilitation Practitioner | Rancho Cucamonga, CA | 2022 |
| Abigail O'Neill | 1588501654 | General Practice Dentistry | Exton, PA | 2026 |
| Abigail O'Neill | 1831622463 | Behavior Analyst | Bountiful, UT | 2017 |
| Abigail O'Neill, DPT | 1871340018 | Physical Therapist | Cedar Rapids, IA | 2024 |
| Adam O'Neill, LPCC | 1689118200 | Mental Health Counselor | Saint Paul, MN | 2016 |
| Addie O'Neill | 1851261291 | Pediatric Nutrition Registered Dietitian | Saint Louis, MO | 2025 |
| Adrienne O'Neill, D.P.M. | 1437470481 | Foot & Ankle Surgery Podiatrist | Sidney, OH | 2010 |
| Aidan O'Neill | 1053202648 | Behavior Technician | Monrovia, CA | 2025 |
| Ailbhe O'Neill, M.D. | 1861824120 | Diagnostic Radiology Physician | Boston, MA | 2013 |
| Aileen O'Neill, M.D. | 1306815030 | Anatomic Pathology & Clinical Pathology Physician | Conyers, GA | 2006 |
| Ailse O'Neill, OTR/L | 1316201908 | Occupational Therapist | Carrboro, NC | 2012 |
| Alaina O'Neill, MS | 1629869417 | Counselor | Philadelphia, PA | 2025 |
| Alana O'Neill, LGPC,CAC-AD | 1083396485 | Mental Health Counselor | Joppa, MD | 2023 |
| Aleea O'Neill | 1487591012 | Massage Therapist | Richmond, VA | 2026 |
| Alexa O'Neill, MS, OTR/L | 1548889033 | Pediatric Occupational Therapist | Lovington, NM | 2020 |
| Alexis O'Neill | 1003517475 | Pharmacist | Tucson, AZ | 2023 |
| Alexis O'Neill | 1083540868 | Medical-Surgical Registered Nurse | Camden, NJ | 2026 |
| Alexis O'Neill, PA-C | 1316874753 | Physician Assistant | San Antonio, TX | 2026 |
| Alexon O'Neill, LAC. | 1154196251 | Acupuncturist | Bend, OR | 2023 |
| Alfonso O'Neill, M.D. | 1922054832 | Pulmonary Disease Physician | Saint Clair Shores, MI | 2006 |
| Alicia O'Neill, ARNP | 1306515093 | Family Nurse Practitioner | Rockwell, IA | 2021 |
| Alicia O'Neill, COTA/L | 1336714047 | Occupational Therapy Assistant | Morristown, NJ | 2021 |
| Alicia O'Neill, M.A. CCC-SLP | 1336894047 | Speech-Language Pathologist | Fairlawn, OH | 2022 |
| Alison O'Neill, MD | 1326409236 | Pediatric Endocrinology Physician | Portland, OR | 2016 |
| Alison O'Neill, NP | 1437764545 | Adult Health Nurse Practitioner | Hoboken, NJ | 2020 |
| Alison O'Neill, MS, LCMHC | 1710017082 | Counselor | Laconia, NH | 2007 |
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).