Providers Abigail O'Neil to Kimberly O'Neil
300 individual NPIs in the federal registry, part 16,044 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. 100 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Abigail O'Neil | 1053247619 | Behavior Technician | Plymouth, MI | 2026 |
| Adrea O'Neil | 1528581618 | Family Nurse Practitioner | Louisville, KY | 2017 |
| Adrienne O'Neil, LCSW | 1043865330 | Clinical Social Worker | Lakewood, CO | 2019 |
| Alana O'Neil | 1346791134 | Physical Therapist | Pittsford, NY | 2016 |
| Alexandra O'Neil, COTA | 1851772792 | Occupational Therapy Assistant | Portland, OR | 2015 |
| Allison O'Neil | 1346636867 | Case Manager/Care Coordinator | Lindsborg, KS | 2015 |
| Allison O'Neil, LCSW | 1982583985 | Clinical Social Worker | Bangor, ME | 2025 |
| Allyson O'Neil | 1821836685 | Behavior Technician | Conway, AR | 2024 |
| Alyssa O'Neil | 1255903233 | Occupational Therapist | Warwick, RI | 2021 |
| Amanda O'Neil | 1346024759 | Behavior Technician | Salt Lake City, UT | 2023 |
| Amanda O'Neil, PA-C | 1962850362 | Physician Assistant | Royal Oak, MI | 2016 |
| Amanda O'Neil, ARNP | 1982000113 | Family Nurse Practitioner | Lakeland, FL | 2014 |
| Amber O'Neil, RBT | 1851942122 | Behavior Technician | Las Vegas, NV | 2019 |
| Amelia O'Neil, LPC | 1124649835 | Mental Health Counselor | Portland, OR | 2020 |
| Amy O'Neil, DO | 1104266881 | Cardiovascular Disease Physician | Waterford, MI | 2013 |
| Amy O'Neil, MA | 1124456371 | Professional Counselor | Haddonfield, NJ | 2013 |
| Amy O'Neil, MD | 1508129198 | Emergency Medical Services (Emergency Medicine) Physician | Rochester, MN | 2012 |
| Amy O'Neil, OTR | 1528397999 | Occupational Therapist | Fargo, ND | 2009 |
| Amy O'Neil | 1619381258 | Counselor | Bermuda Dunes, CA | 2014 |
| Andrea O'Neil, PA-C | 1518163559 | Physician Assistant | Royal Oak, MI | 2007 |
| Andrea O'Neil, LMSW | 1649315250 | Clinical Social Worker | Ann Arbor, MI | 2007 |
| Andrew O'Neil, MD | 1124518865 | Anesthesiology Physician | Indianapolis, IN | 2018 |
| Angela O'Neil, BS, CADC-R | 1285227660 | Mental Health Counselor | Eugene, OR | 2021 |
| Angela O'Neil, M.D. | 1639141161 | Family Medicine Physician | Scottsdale, AZ | 2006 |
| Angela O'Neil, LICSW | 1699811851 | Clinical Social Worker | Westminster, MA | 2007 |
| Ann O'Neil | 1235311754 | Speech-Language Pathologist | Lowell, MA | 2007 |
| Ann O'Neil, D.D.S. | 1295836419 | General Practice Dentistry | Wauwatosa, WI | 2006 |
| Ann O'Neil, LCSWA | 1598423949 | Clinical Social Worker | Chapel Hill, NC | 2021 |
| Ann O'Neil, DPT | 1972978831 | Pediatric Physical Therapist | West Chester, OH | 2015 |
| Annette O'Neil, M.D. | 1295719474 | Internal Medicine Physician | Norristown, PA | 2005 |
| April O'Neil | 1235308792 | Physical Therapy Assistant | Palm Springs, CA | 2008 |
| April O'Neil, COTA | 1710275565 | Occupational Therapy Assistant | Oil City, PA | 2011 |
| Ariel O'Neil, M.D. | 1073046074 | Surgery Physician | Columbia, TN | 2017 |
| Ashley O'Neil | 1205466968 | Mental Health Counselor | Edmonds, WA | 2020 |
| Ashley O'Neil, CRNP | 1326577065 | Family Nurse Practitioner | Leonardtown, MD | 2017 |
| Asia O'Neil | 1407584949 | Behavior Technician | Minneapolis, MN | 2022 |
| Aurelia O'Neil, MOT, OTR/L | 1407360340 | Occupational Therapist | Omaha, NE | 2017 |
| Bailey O'Neil, DO | 1407590466 | Student in an Organized Health Care Education/Training Program | Pontiac, MI | 2022 |
| Barbara O'Neil, PT | 1033151998 | Physical Therapist | Succasunna, NJ | 2006 |
| Barbara O'Neil, M.D. | 1275565335 | Internal Medicine Physician | Cambridge, MA | 2006 |
| Barbara O'Neil, LMSW | 1912350893 | Clinical Social Worker | Battle Creek, MI | 2016 |
| Becka O'Neil | 1134866007 | Professional Counselor | Stevensville, MI | 2022 |
| Bernadette O'Neil, D.O | 1245658004 | Pediatric Critical Care Medicine Physician | Maywood, IL | 2014 |
| Bernadette O'Neil, LICSW,LADC | 1609897255 | Addiction (Substance Use Disorder) Counselor | Winooski, VT | 2006 |
| Bert O'Neil, MD | 1588724199 | Medical Oncology Physician | Indianapolis, IN | 2006 |
| Bethany O'Neil | 1497385371 | Occupational Therapy Assistant | Bennington, VT | 2020 |
| Boise O'Neil | 1649876590 | Behavior Technician | Baltimore, MD | 2020 |
| Brandi O'Neil | 1609463397 | Personal Care Attendant | Glen Easton, WV | 2020 |
| Brandon O'Neil | 1285440768 | Behavior Technician | Merrillville, IN | 2024 |
| Brandon O'Neil | 1700914231 | Day Training/Habilitation Specialist | Bakersfield, CA | 2007 |
| Brandy O'Neil | 1689165847 | Behavior Technician | Newberry, MI | 2018 |
| Breanna O'Neil, MD | 1407384043 | Surgery Physician | Two Rivers, WI | 2017 |
| Brenda O'Neil | 1093287831 | Licensed Practical Nurse | Saginaw, MI | 2018 |
| Brenda O'Neil, D.C. | 1225380280 | Chiropractor | Louisville, KY | 2012 |
| Brenda O'Neil, DPT | 1942601232 | Physical Therapist | Twin Falls, ID | 2014 |
| Brendan O'Neil | 1326286808 | Clinical Social Worker | Springfield, MA | 2009 |
| Brendan O'Neil | 1881526226 | Behavior Technician | Vancouver, WA | 2026 |
| Brian O'Neil, M.D. | 1710948914 | Emergency Medicine Physician | Royal Oak, MI | 2006 |
| Brian O'Neil, PT | 1972574655 | Physical Therapist | Marshfield, MA | 2006 |
| Brittany O'Neil, LMT | 1710585799 | Massage Therapist | Woodstock, NY | 2020 |
| Brock O'Neil, MD | 1902048630 | Urology Physician | Nashville, TN | 2009 |
| Bruce O'Neil, M.D. | 1255399580 | Internal Medicine Physician | Oakland, CA | 2006 |
| Bryan O'Neil, OD | 1073007670 | Optometrist | Syracuse, NY | 2018 |
| Cailyn O'Neil, SLP-CF | 1689356529 | Speech-Language Pathologist | Denver, CO | 2023 |
| Caitlin O'Neil, BSW | 1588280481 | Case Manager/Care Coordinator | Northfield, IL | 2020 |
| Caitlin O'Neil | 1851943450 | Licensed Practical Nurse | Scottsville, NY | 2019 |
| Carla O'Neil, LMSW | 1831600949 | Social Worker | Tarrytown, NY | 2017 |
| Carol O'Neil | 1386777654 | Occupational Therapist | Saint Louis, MO | 2007 |
| Caroline O'Neil, PA-C | 1710525258 | Medical Physician Assistant | Pittsburgh, PA | 2019 |
| Carolyn O'Neil | 1568633287 | Specialist | Plaistow, NH | 2008 |
| Carrol O'Neil, RN | 1275543555 | Registered Nurse | Houston, TX | 2006 |
| Casey O'Neil | 1164171591 | Student in an Organized Health Care Education/Training Program | Newark, DE | 2022 |
| Casey O'Neil | 1831022532 | Mental Health Counselor | Rhinebeck, NY | 2026 |
| Casey O'Neil | 1952837320 | Specialist | Whitehall, PA | 2017 |
| Cathy O'Neil, M.D., M.P.H. | 1003955279 | Hospitalist Physician | Gainesville, FL | 2007 |
| Charla O'Neil, CNM ARNP | 1891015376 | Advanced Practice Midwife | Boca Raton, FL | 2010 |
| Charles O'Neil | 1245362904 | Mental Health Counselor | Maryville, TN | 2007 |
| Chelsea O'Neil | 1376994582 | Developmental Therapist | Milford, MA | 2016 |
| Chelsea O'Neil, MA, LPC-IT | 1548782634 | Mental Health Counselor | Madison, WI | 2017 |
| Cheryl O'Neil | 1841986510 | Addiction (Substance Use Disorder) Counselor | Billings, MT | 2023 |
| Cheryl O'Neil, CRNP | 1982084679 | Family Nurse Practitioner | Rockville, MD | 2015 |
| Chris O'Neil, DO | 1154313450 | Family Medicine Physician | Bloomsburg, PA | 2005 |
| Christina O'Neil, LSCSW, LCSW, LCAC | 1902871635 | Clinical Social Worker | Overland Park, KS | 2006 |
| Christopher O'Neil, MD | 1467912717 | Student in an Organized Health Care Education/Training Program | Miami, FL | 2019 |
| Christopher O'Neil | 1639062110 | Mental Health Counselor | Haverhill, MA | 2025 |
| Christopher O'Neil, MD | 1992558258 | Student in an Organized Health Care Education/Training Program | Worcester, MA | 2024 |
| Chyenne O'Neil | 1235822297 | Attendant Care Provider | Albuquerque, NM | 2023 |
| Colin O'Neil, DO | 1003754201 | Student in an Organized Health Care Education/Training Program | Portsmouth, NH | 2026 |
| Colleen O'Neil | 1962073494 | Acupuncturist | Port Washington, WI | 2021 |
| Collin O'Neil, PA-C | 1588226039 | Medical Physician Assistant | Lebanon, PA | 2019 |
| Cosetta O'Neil, CRNP | 1700571221 | Nurse Practitioner | State College, PA | 2023 |
| Craig O'Neil, PT,OCS,MTC | 1972672988 | Physical Therapist | Franklin, TN | 2006 |
| Crista O'Neil, NP | 1386526861 | Family Nurse Practitioner | Sparks, MD | 2025 |
| Cynthia O'Neil, RD, LD, IBCLC | 1033402763 | Registered Dietitian | Boise, ID | 2011 |
| Cynthia O'Neil, MD | 1194028266 | Dermatopathology Physician | Green Valley, AZ | 2010 |
| Cynthia O'Neil, PT, DPT | 1255880225 | Physical Therapist | Beverly Hills, CA | 2016 |
| Danah O'Neil, M.D. | 1033301650 | Pediatrics Physician | Minnetonka, MN | 2007 |
| Daniel O'Neil, M.A. | 1073636924 | Athletic Trainer | Troy, MI | 2007 |
| Daniel O'Neil, M.D., M.P.H. | 1962764209 | Medical Oncology Physician | Waterbury, CT | 2012 |
| Daniela O'Neil, CRNP, FNP-BC | 1902267909 | Family Nurse Practitioner | Yardley, PA | 2016 |
| David O'Neil, MD | 1154364529 | Gynecology Physician | Baltimore, MD | 2006 |
| David O'Neil | 1154909158 | Pediatrics Physician | Rocky Mount, VA | 2021 |
| David O'Neil | 1790619211 | Mental Health Counselor | Omaha, NE | 2026 |
| David O'Neil, M.D. | 1831158930 | Cardiovascular Disease Physician | Philadelphia, PA | 2006 |
| Dawn O'Neil, PH.D. | 1265518898 | Counseling Psychologist | Aurora, CO | 2006 |
| Dawn O'Neil | 1689126948 | Registered Nurse | Saint Albans, NY | 2016 |
| Deagan O'Neil | 1699669473 | Behavior Technician | Saginaw, MI | 2025 |
| Deanna O'Neil, DDS | 1508972837 | Pediatric Dentistry | South Bend, IN | 2006 |
| Debby O'Neil, RN | 1811405673 | Registered Nurse | Traverse City, MI | 2018 |
| Deirdre O'Neil, CPM, NHCM | 1740179753 | Midwife | Dalton, NH | 2025 |
| Denise O'Neil | 1184164865 | Psychiatric/Mental Health Nurse Practitioner | Chattanooga, TN | 2017 |
| Denise O'Neil, AGNP | 1427681493 | Adult Health Nurse Practitioner | Salamanca, NY | 2020 |
| Denise O'Neil, RN | 1487399192 | Registered Nurse | Concord, NH | 2022 |
| Dennis O'Neil, M.D. | 1679531073 | Psychiatry Physician | Bedford, MA | 2006 |
| Dennis O'Neil | 1699236356 | Physical Therapist | Dover Foxcroft, ME | 2019 |
| Diana O'Neil | 1851718639 | Physician Assistant | Concord, NH | 2014 |
| Diana O'Neil, ARNP | 1982861720 | Psychiatric/Mental Health Nurse Practitioner | St Petersburg, FL | 2008 |
| Diane O'Neil, OTR/L | 1003047655 | Occupational Therapist | Alamosa, CO | 2009 |
| Donald O'Neil, D.C. | 1538224621 | Chiropractor | Surf City, NC | 2006 |
| Donna O'Neil, DPT | 1043431695 | Physical Therapist | Owasso, OK | 2007 |
| Donna O'Neil | 1538693023 | Ophthalmic Plastic and Reconstructive Surgery Physician | Providence, RI | 2017 |
| Donna O'Neil, CRNP | 1679757546 | Nurse Practitioner | Bethlehem, PA | 2007 |
| Douglas O'Neil | 1427805308 | Student in an Organized Health Care Education/Training Program | Evanston, IL | 2024 |
| Editha O'Neil | 1114256328 | Social Worker | Indianapolis, IN | 2009 |
| Edward O'Neil, MD | 1154544377 | Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician | Methuen, MA | 2007 |
| Eileen O'Neil | 1942746714 | Clinical Social Worker | Yorkville, IL | 2017 |
| Eleanor O'Neil, LICSW | 1891572921 | Clinical Social Worker | Woodbury, MN | 2023 |
| Elizabeth O'Neil, MD | 1033739586 | Pediatrics Physician | Charlotte, NC | 2020 |
| Elizabeth O'Neil | 1073719191 | Specialist | Peterborough, NH | 2007 |
| Elizabeth O'Neil, AUD | 1073961306 | Audiologist | Pocatello, ID | 2016 |
| Elizabeth O'Neil, RN, NP | 1528198199 | Occupational Health Nurse Practitioner | Belmont, MA | 2007 |
| Elizabeth O'Neil, APRN | 1679986764 | Family Nurse Practitioner | Kaneohe, HI | 2014 |
| Elizabeth O'Neil, RN NP | 1740293455 | Family Nurse Practitioner | West Lafayette, IN | 2006 |
| Elizabeth O'Neil, CNP | 1811416563 | Family Nurse Practitioner | Cambridge, MA | 2017 |
| Elizabeth O'Neil, BCBA, LABA | 1982123832 | Behavior Analyst | Norwell, MA | 2017 |
| Elizabeth O'Neil | 1982443255 | Physician Assistant | Portland, ME | 2024 |
| Ellen O'Neil, MSN, RN, CPNP-PC | 1710511142 | Pediatric Nurse Practitioner | Kansas City, MO | 2020 |
| Ellen O'Neil, SC.D., CCC-A | 1902976616 | Audiologist | Bedford, MA | 2006 |
| Ellen (tess) O'Neil | 1730638834 | Student in an Organized Health Care Education/Training Program | Berkeley, CA | 2016 |
| Emily O'Neil, M.D. | 1104246800 | Obstetrics & Gynecology Physician | Burnsville, MN | 2014 |
| Emily O'Neil | 1730627563 | Behavior Analyst | Tampa, FL | 2017 |
| Emily O'Neil, OTR | 1780436535 | Occupational Therapist | Worcester, MA | 2024 |
| Emily O'Neil, MS/CCC-SLP | 1851814370 | Speech-Language Pathologist | Pueblo, CO | 2017 |
| Emma O'Neil, AGNP-C | 1154913150 | Nurse Practitioner | Middlebury, CT | 2021 |
| Emma O'Neil, RDN | 1326827346 | Registered Dietitian | Bay Pines, FL | 2023 |
| Emma O'Neil | 1851090468 | Acupuncturist | Chicago, IL | 2023 |
| Erika O'Neil | 1245016872 | Mental Health Counselor | Indianapolis, IN | 2023 |
| Erika O'Neil, MD | 1750648143 | Pediatric Critical Care Medicine Physician | Fort Sam Houston, TX | 2012 |
| Erin O'Neil | 1245872100 | Mental Health Counselor | Chico, CA | 2019 |
| Erin O'Neil, PA | 1508751413 | Physician Assistant | Traverse City, MI | 2025 |
| Erin O'Neil, LMSW | 1568973899 | Clinical Social Worker | Goshen, CT | 2017 |
| Erin O'Neil, MD | 1629424387 | Ophthalmology Physician | Philadelphia, PA | 2016 |
| Erin O'Neil, M.S. CCC-SLP | 1790154722 | Speech-Language Pathologist | Waldorf, MD | 2015 |
| Esther O'Neil, AMFT | 1003793746 | Mental Health Counselor | Newport Beach, CA | 2025 |
| Ethan O'Neil | 1225901200 | Internal Medicine Physician | Pittsburgh, PA | 2025 |
| Evgenia O'Neil, FNP-C | 1972992865 | Nurse Practitioner | Lewes, DE | 2015 |
| Falon O'Neil, PA-C | 1376009399 | Surgical Physician Assistant | Brooklyn, NY | 2019 |
| Galen O'Neil, CRM | 1083448666 | Peer Specialist | Medford, OR | 2024 |
| Gara O'Neil, MA, LPC, NCC | 1033960505 | Professional Counselor | Valencia, PA | 2024 |
| Gavin O'Neil, LISW, LCSW | 1669152336 | Clinical Social Worker | Carthage, IL | 2023 |
| George O'Neil, ATC | 1053470286 | Athletic Trainer | Princeton, NJ | 2006 |
| George O'Neil, M.D. | 1639140031 | Obstetrics & Gynecology Physician | West Palm Beach, FL | 2006 |
| Georgianna O'Neil, LVN | 1316156912 | Addiction (Substance Use Disorder) Counselor | Sacramento, CA | 2007 |
| Grace O'Neil, MD | 1164442158 | Emergency Medicine Physician | Tripler Army Medical Center, HI | 2006 |
| Gregory O'Neil, M.D. | 1467440685 | Anesthesiology Physician | Houston, TX | 2005 |
| Haley O'Neil | 1689330292 | Behavior Technician | Sacramento, CA | 2021 |
| Hannah O'Neil, MA | 1922922673 | Student in an Organized Health Care Education/Training Program | Barre, VT | 2026 |
| Heather O'Neil, LMHC | 1013238096 | Mental Health Counselor | Methuen, MA | 2010 |
| Heather O'Neil, L.C.S.W. | 1164664694 | Clinical Social Worker | Denver, CO | 2009 |
| Heather O'Neil, LMFT | 1396639795 | Marriage & Family Therapist | Lakeville, MN | 2025 |
| Heather O'Neil | 1740775899 | Behavior Analyst | Stirling, NJ | 2018 |
| Heather O'Neil, APRN, CRNA | 1780110056 | Certified Registered Nurse Anesthetist | Rochester, MN | 2017 |
| Heidi O'Neil, LICSW | 1861933970 | Clinical Social Worker | West Wareham, MA | 2017 |
| Helen O'Neil, L.M.P. | 1831401165 | Massage Therapist | Seattle, WA | 2010 |
| Helen O'Neil, BSN, RN, CPHON | 1871279083 | Pediatric Oncology Registered Nurse | Portland, OR | 2023 |
| Hilary O'Neil | 1518215656 | Counselor | Provo, UT | 2012 |
| Howard O'Neil, M.D. | 1194701730 | Diagnostic Radiology Physician | Downers Grove, IL | 2005 |
| Jack O'Neil, DPT | 1104711563 | Sports Medicine (Physical Medicine & Rehabilitation) Physician | Stillwater, OK | 2025 |
| Jackie O'Neil, LPCA | 1124365697 | Mental Health Counselor | Lumberton, NC | 2013 |
| Jackson O'Neil | 1821701020 | Student in an Organized Health Care Education/Training Program | Placentia, CA | 2023 |
| Jacob O'Neil | 1205784105 | Behavior Technician | Gaithersburg, MD | 2026 |
| Jacquelin O'Neil | 1053811984 | Behavior Technician | Sanford, FL | 2018 |
| Jacqueline O'Neil | 1083253058 | Physical Therapist | Arlington, VA | 2019 |
| Jacqueline O'Neil | 1629669171 | Addiction (Substance Use Disorder) Counselor | Rommey, WV | 2021 |
| Jacquelyn O'Neil | 1568838886 | Social Worker | Asheville, NC | 2015 |
| Jaime O'Neil | 1023602240 | Speech-Language Pathologist | New London, CT | 2021 |
| Jaime O'Neil, PA-C | 1467517680 | Physician Assistant | Pittsburgh, PA | 2006 |
| James O'Neil, PMHNP-BC | 1023996410 | Psychiatric/Mental Health Nurse Practitioner | Middlefield, OH | 2025 |
| James O'Neil, CCC-SLP | 1225319916 | Speech-Language Pathologist | Whitmore Lake, MI | 2011 |
| James O'Neil, M.D. | 1497916282 | Otolaryngology Physician | Raleigh, NC | 2008 |
| James O'Neil, MD | 1548115470 | Student in an Organized Health Care Education/Training Program | Ponce, PR | 2026 |
| James O'Neil | 1568270932 | Developmental Therapist | Milford, MA | 2024 |
| James O'Neil, MD | 1902250681 | Anesthesiology Physician | Seattle, WA | 2016 |
| James O'Neil, BACHELOR'S | 1992530117 | Mental Health Counselor | Northampton, MA | 2024 |
| Jamie O'Neil, LCSW-R | 1427040344 | Clinical Social Worker | Poughkeepsie, NY | 2005 |
| Jamie O'Neil | 1780226183 | Behavior Technician | Palm Harbor, FL | 2019 |
| Jane O'Neil, MD | 1750348751 | Family Medicine Physician | Apple Valley, MN | 2006 |
| Janet O'Neil, PT | 1649612425 | Physical Therapist | Lincoln, NE | 2013 |
| Jean O'Neil, NP | 1134273675 | Family Nurse Practitioner | Glendale, CA | 2007 |
| Jennifer O'Neil | 1033989728 | Behavior Analyst | Sturbridge, MA | 2024 |
| Jennifer O'Neil | 1043756984 | Community Health Worker | Reno, NV | 2017 |
| Jennifer O'Neil, SLP | 1508385675 | Speech-Language Pathologist | Brooklyn, NY | 2017 |
| Jennifer O'Neil, MD | 1548427271 | Pediatric Cardiology Physician | Fairfax, VA | 2008 |
| Jennifer O'Neil, CPSW | 1548985112 | Counselor | Las Vegas, NM | 2022 |
| Jennifer O'Neil, PT, DPT | 1609457738 | Physical Therapist | Atlanta, GA | 2021 |
| Jennifer O'Neil, NP | 1689411548 | Nurse Practitioner | Crystal Lake, IL | 2024 |
| Jennifer O'Neil, RN | 1700930930 | Registered Nurse | Boston, MA | 2007 |
| Jennifer O'Neil, LMHC | 1821354911 | Mental Health Counselor | Boston, MA | 2012 |
| Jennifer O'Neil | 1861908105 | Counselor | Whitinsville, MA | 2017 |
| Jennifer O'Neil, RN | 1932885316 | Diabetes Educator Registered Nurse | Greenfield, WI | 2023 |
| Jennilee O'Neil | 1386021855 | Dental Hygienist | Saginaw, MI | 2015 |
| Jenny O'Neil, ATC | 1619990777 | Student in an Organized Health Care Education/Training Program | Olathe, KS | 2006 |
| Jenny O'Neil | 1891158846 | Behavior Analyst | Walnut Creek, CA | 2016 |
| Jerome O'Neil, MD | 1982675641 | Pediatrics Physician | Saint Louis, MO | 2006 |
| Jesse O'Neil, BCBA | 1033603980 | Behavior Analyst | San Diego, CA | 2018 |
| Jessica O'Neil, APRN | 1083564504 | Nurse Practitioner | Miami, FL | 2026 |
| Jessica O'Neil, D.O. | 1124261987 | Psychiatry Physician | Berlin, VT | 2009 |
| Jessica O'Neil, LCSW | 1164392395 | Clinical Social Worker | Tampa, FL | 2025 |
| Jessica O'Neil | 1205189164 | Addiction (Substance Use Disorder) Counselor | Fall River, MA | 2012 |
| Jessica O'Neil | 1235512211 | Behavior Analyst | Natick, MA | 2015 |
| Jessica O'Neil | 1306268164 | Licensed Practical Nurse | Gilbert, AZ | 2014 |
| Jessica O'Neil, MD | 1306307079 | Infectious Disease Physician | Philadelphia, PA | 2019 |
| Jessica O'Neil, LCPC | 1346703014 | Professional Counselor | Hagerstown, MD | 2019 |
| Jessica O'Neil, PT | 1396266250 | Physical Therapist | Milwaukee, WI | 2017 |
| Jessica O'Neil, D.O. | 1801182605 | Internal Medicine Physician | Grand Rapids, MI | 2011 |
| Jill O'Neil, SLP | 1528244084 | Speech-Language Pathologist | Orchard Park, NY | 2008 |
| Jillian O'Neil, M.A. CCC-SLP, TSSLD | 1083919302 | Speech-Language Pathologist | Medford, NY | 2011 |
| Jillian O'Neil, MS | 1720860752 | Health & Wellness Coach | New York, NY | 2023 |
| Jo-Ann O'Neil, MA, LPC, NCC | 1447457106 | Professional Counselor | Canon City, CO | 2007 |
| Joanne O'Neil | 1255630802 | Mental Health Counselor | Holyoke, MA | 2011 |
| Jodi O'Neil | 1487171310 | Occupational Therapy Assistant | Auburn, WA | 2017 |
| Joelle O'Neil | 1467560060 | Family Medicine Physician | Fresno, CA | 2006 |
| Johanna O'Neil, LMP | 1831520980 | Specialist | Issaquah, WA | 2013 |
| John O'Neil, PH.D. | 1124164553 | Clinical Psychologist | Edina, MN | 2007 |
| John O'Neil, M.D. | 1245291087 | Diagnostic Radiology Physician | Norfolk, VA | 2006 |
| John O'Neil, PT, DPT | 1316347768 | Physical Therapist | Westminster, MD | 2014 |
| John O'Neil, LCSW, LADC | 1457167769 | Clinical Social Worker | Milford, CT | 2024 |
| John O'Neil, FNP | 1619963592 | Family Nurse Practitioner | Plymouth, MA | 2005 |
| John O'Neil, RPH | 1639648645 | Pharmacist | Greenfield, MA | 2018 |
| Johnna O'Neil | 1356987341 | Addiction (Substance Use Disorder) Counselor | Klamath Falls, OR | 2019 |
| Jon-Erik O'Neil | 1578054789 | Counselor | Braintree, MA | 2018 |
| Jonathan O'Neil, M.D. | 1417163205 | Neurology Physician | Colorado Springs, CO | 2007 |
| Jordyn O'Neil, AUD | 1356179360 | Audiologist | Creve Coeur, MO | 2024 |
| Joseph O'Neil | 1033735238 | Counselor | Vancouver, WA | 2020 |
| Joseph O'Neil | 1053269860 | Student in an Organized Health Care Education/Training Program | Indianapolis, IN | 2026 |
| Joseph O'Neil, M.D. | 1558627091 | Orthopaedic Surgery Physician | Blue Bell, PA | 2012 |
| Joseph O'Neil, MA, LPC, NCC | 1902401094 | Professional Counselor | Seven Fields, PA | 2020 |
| Joseph O'Neil, MD | 1902915085 | Developmental - Behavioral Pediatrics Physician | Indianapolis, IN | 2006 |
| Joyce O'Neil, M.A., LCMHC | 1679726780 | Mental Health Counselor | Burlington, VT | 2008 |
| Judith O'Neil, ARNP | 1891743027 | Pediatric Nurse Practitioner | Biloxi, MS | 2006 |
| Julia O'Neil, RD | 1376327809 | Registered Dietitian | Eugene, OR | 2023 |
| Julia O'Neil, LMP | 1699207688 | Massage Therapist | Snohomish, WA | 2017 |
| Julie O'Neil, CNM | 1295884732 | Midwife | Springfield, OR | 2007 |
| Kaitlyn O'Neil, PAC | 1699263566 | Physician Assistant | York, PA | 2018 |
| Kaitlyn O'Neil | 1801512025 | Marriage & Family Therapist | Syracuse, NY | 2022 |
| Kaleigh O'Neil, FNP-BC | 1831765296 | Family Nurse Practitioner | Leominster, MA | 2021 |
| Kara O'Neil | 1619571395 | Pharmacist | Atlanta, GA | 2020 |
| Karen O'Neil, CCLS | 1225463375 | Developmental Therapist | Milford, MA | 2013 |
| Karen O'Neil, CNP | 1659776144 | Adult Health Nurse Practitioner | Scituate, MA | 2014 |
| Karen O'Neil, OTR/L | 1699576322 | Occupational Therapist | Plantation, FL | 2025 |
| Karen O'Neil, APRN | 1871572024 | Family Nurse Practitioner | Stuart, FL | 2006 |
| Kate O'Neil | 1376378984 | Student in an Organized Health Care Education/Training Program | Rochester, NY | 2024 |
| Katelyn O'Neil | 1215325634 | Registered Nurse | Lewes, DE | 2015 |
| Katelyn O'Neil, PHARMD | 1467889147 | Pharmacist | Abita Springs, LA | 2013 |
| Katherine O'Neil, M.S., CCC-SLP | 1144567793 | Speech-Language Pathologist | West Roxbury, MA | 2013 |
| Katherine O'Neil, PHD | 1649762790 | Psychologist | Smiths Station, AL | 2018 |
| Katherine O'Neil, FNP-BC | 1841479896 | Family Nurse Practitioner | Springfield, IL | 2007 |
| Kathleen O'Neil | 1063690956 | Counselor | Kannapolis, NC | 2008 |
| Kathleen O'Neil, MD | 1306815402 | Pediatric Rheumatology Physician | Indianapolis, IN | 2006 |
| Kathleen O'Neil, MS, BCBA, LBA | 1679010730 | Behavior Analyst | Charlottesville, VA | 2017 |
| Kathleen O'Neil, M.D. | 1881693950 | Diagnostic Radiology Physician | Farmington, UT | 2005 |
| Kathleen O'Neil, DO | 1942941083 | Student in an Organized Health Care Education/Training Program | Lexington, KY | 2022 |
| Kathryn O'Neil | 1023859907 | Student in an Organized Health Care Education/Training Program | New Britain, CT | 2024 |
| Kathryn O'Neil, M.D. | 1114280765 | Emergency Medicine Physician | San Diego, CA | 2012 |
| Kathryn O'Neil, LPC | 1184853863 | Mental Health Counselor | Mandeville, LA | 2009 |
| Kathryn O'Neil, PA-C | 1669846200 | Physician Assistant | Gastonia, NC | 2015 |
| Kathryn O'Neil, PSYD, MS | 1720757578 | Clinical Psychologist | Riverside, RI | 2021 |
| Katie O'Neil, LPC-IT | 1174359269 | Mental Health Counselor | Madison, WI | 2024 |
| Katlyn O'Neil | 1730809070 | Behavior Technician | Marlborough, MA | 2022 |
| Kaycee O'Neil, LMSW | 1841025384 | Social Worker | Elmhurst, NY | 2024 |
| Kayla O'Neil, MSN, AGACNP-BC | 1427729433 | Critical Care Medicine Nurse Practitioner | Boston, MA | 2021 |
| Kaylah O'Neil | 1790289452 | Case Manager/Care Coordinator | Worthington, OH | 2018 |
| Kaylee O'Neil | 1508384850 | Athletic Trainer | Tecumseh, MI | 2017 |
| Kelli O'Neil, MS, RD, LD, CDE | 1902970254 | Registered Dietitian | Roswell, GA | 2006 |
| Kelly O'Neil, M.D. | 1396081006 | Specialist | Temecula, CA | 2012 |
| Kelly O'Neil | 1437696143 | Behavior Analyst | Concord, NH | 2017 |
| Kelly O'Neil | 1518447093 | Mental Health Counselor | Aurora, IL | 2018 |
| Kelly O'Neil, COTA/L | 1790937944 | Occupational Therapy Assistant | Attica, NY | 2008 |
| Kelly O'Neil, PT | 1912455940 | Physical Therapist | Berlin, NH | 2016 |
| Kelsey O'Neil, APRN, CNP | 1003677303 | Family Nurse Practitioner | Duluth, MN | 2024 |
| Kendra-Leigh O'Neil | 1487017034 | Clinical Social Worker | Quincy, MA | 2016 |
| Kenneth O'Neil, PA-C | 1972432318 | Physician Assistant | Savage, MN | 2026 |
| Kerry O'Neil, LMFT | 1689393258 | Marriage & Family Therapist | Torrington, CT | 2022 |
| Kerry O'Neil, BSED | 1912180951 | Developmental Therapist | Leominster, MA | 2007 |
| Kevin O'Neil, MD | 1134153067 | Pulmonary Disease Physician | Wilmington, NC | 2006 |
| Kevin O'Neil, M.D. | 1366427189 | Geriatric Medicine (Internal Medicine) Physician | Sarasota, FL | 2005 |
| Kevin O'Neil | 1386208734 | Geriatric Physical Therapist | Sioux Falls, SD | 2019 |
| Kevin O'Neil, M.D. | 1700813102 | Obstetrics & Gynecology Physician | Irving, TX | 2006 |
| Kim O'Neil, P.T. | 1568648491 | Physical Therapist | Hermitage, TN | 2008 |
| Kimberly O'Neil | 1326479379 | Chiropractor | Bethlehem, PA | 2013 |
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).