Providers Eleanor O'Neill, MD to Katy O'Neill, L.I.C.S.W.
300 individual NPIs in the federal registry, part 16,047 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. 102 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Eleanor O'Neill, MD | 1962341297 | Student in an Organized Health Care Education/Training Program | San Francisco, CA | 2026 |
| Elena O'Neill, CNM, ARNP | 1669862512 | Advanced Practice Midwife | Boynton Bch, FL | 2015 |
| Elizabeth O'Neill, AU.D. CCC-A | 1073670717 | Audiologist | Waltham, MA | 2007 |
| Elizabeth O'Neill, M.D. | 1205972841 | Anatomic Pathology Physician | Dedham, MA | 2007 |
| Elizabeth O'Neill, MS ARNP-BC | 1215135348 | Nurse Practitioner | Sioux Falls, SD | 2007 |
| Elizabeth O'Neill, MD | 1346278660 | Family Medicine Physician | Portland, OR | 2006 |
| Elizabeth O'Neill, FNP | 1528670221 | Family Nurse Practitioner | San Diego, CA | 2020 |
| Elizabeth O'Neill, MD | 1710780671 | Student in an Organized Health Care Education/Training Program | Pittsburgh, PA | 2025 |
| Elizabeth O'Neill, MAOM, LIC.AC. | 1720290521 | Acupuncturist | Yarmouth, ME | 2007 |
| Elizabeth O'Neill | 1770136897 | Clinical Social Worker | Swansea, MA | 2019 |
| Elizabeth O'Neill, MD MPH | 1891317160 | Plastic Surgery Physician | Chicago, IL | 2020 |
| Elizabeth O'Neill | 1912584491 | Specialist | Williamstown, NJ | 2021 |
| Ellen O'Neill, C.N.M | 1114036803 | Midwife | Jersey City, NJ | 2006 |
| Ellen O'Neill, RDN | 1114334901 | Registered Dietitian | Fort Collins, CO | 2014 |
| Ellen O'Neill | 1144565227 | Speech-Language Pathologist | Fairport, NY | 2012 |
| Ellen O'Neill | 1679640270 | Speech-Language Pathologist | Springfield, MA | 2006 |
| Ellen O'Neill, PT | 1720255045 | Geriatric Physical Therapist | Cherry Hill, NJ | 2008 |
| Elyse O'Neill, DPT | 1497178610 | Geriatric Physical Therapist | Massillon, OH | 2014 |
| Emilie O'Neill | 1932555943 | Internal Medicine Physician | Brooklyn, NY | 2016 |
| Emily O'Neill | 1154807006 | Pharmacist | Columbus, OH | 2018 |
| Emily O'Neill, MD | 1164044657 | Internal Medicine Physician | Salt Lake City, UT | 2020 |
| Emily O'Neill, MSW | 1235966268 | Clinical Social Worker | Brookline, MA | 2024 |
| Emily O'Neill, RN | 1245110105 | Registered Nurse | Schenectady, NY | 2025 |
| Emily O'Neill | 1285500850 | Physician Assistant | Lebanon, TN | 2025 |
| Emily O'Neill, PT, DPT | 1295287969 | Physical Therapist | New York, NY | 2016 |
| Emily O'Neill | 1376796391 | Behavior Analyst | Greensboro, NC | 2008 |
| Emily O'Neill, MD | 1437809340 | Student in an Organized Health Care Education/Training Program | Aurora, CO | 2022 |
| Emily O'Neill, OTR/L | 1437874336 | Occupational Therapist | Saint Louis, MO | 2022 |
| Emma O'Neill | 1114786217 | Occupational Therapist | Binghamton, NY | 2024 |
| Emma O'Neill | 1154125680 | Behavior Technician | Nashville, TN | 2025 |
| Emma O'Neill | 1639920044 | Behavior Technician | Warner Robins, GA | 2024 |
| Eoin O'Neill, NP | 1649795287 | Critical Care Medicine Registered Nurse | Bethpage, NY | 2017 |
| Eric O'Neill | 1306109178 | Clinical Social Worker | Raleigh, NC | 2012 |
| Eric O'Neill, MD | 1780794446 | Plastic Surgery Physician | Waco, TX | 2006 |
| Erica O'Neill, MD | 1073717823 | Obstetrics & Gynecology Physician | Chapel Hill, NC | 2007 |
| Erica O'Neill, LCSW | 1497443006 | Clinical Social Worker | North Chicago, IL | 2023 |
| Erin O'Neill, DPT | 1104659549 | Orthopedic Physical Therapist | Seattle, WA | 2024 |
| Erin O'Neill | 1184547200 | Clinical Social Worker | Philadelphia, PA | 2026 |
| Erin O'Neill, D.P.M, PA-C | 1225580178 | Surgical Physician Assistant | Orlando, FL | 2016 |
| Erin O'Neill, FNP-C | 1235092362 | Primary Care Nurse Practitioner | Thomasville, NC | 2025 |
| Erin O'Neill | 1295470425 | Massage Therapist | Marlton, NJ | 2022 |
| Erin O'Neill, M.D. | 1376749416 | Diagnostic Radiology Physician | Washington, DC | 2007 |
| Erin O'Neill, PT | 1386734168 | Physical Therapist | Wadsworth, OH | 2006 |
| Erin O'Neill | 1457204000 | Behavior Technician | Sharon, MA | 2026 |
| Erin O'Neill, LMT | 1720395866 | Massage Therapist | Portland, OR | 2010 |
| Erin O'Neill, D.O. | 1891227088 | Surgery Physician | Troy, OH | 2017 |
| Esther O'Neill, A.N.P. | 1164441499 | Adult Health Nurse Practitioner | Syracuse, NY | 2006 |
| Eugene O'Neill, MD | 1598733917 | Family Medicine Physician | Denver, CO | 2006 |
| Evonn O'Neill, M.D. | 1205887114 | Family Medicine Physician | Nine Mile Falls, WA | 2006 |
| Fay O'Neill | 1568899144 | Rehabilitation Psychologist | Bartlesville, OK | 2013 |
| Frances O'Neill | 1124640545 | Speech-Language Pathologist | Pleasant Hill, CA | 2020 |
| Frances O'Neill, SLP-CFY TSSLD | 1295079275 | Speech-Language Pathologist | Rye Brook, NY | 2012 |
| Francesca O'Neill | 1356100432 | Behavior Technician | Concord, CA | 2024 |
| Francis O'Neill | 1487026704 | Contractor | Fairborn, OH | 2015 |
| Francis O'Neill, MD | 1538521604 | Interventional Cardiology Physician | East Meadow, NY | 2016 |
| Frank O'Neill, D.C. | 1821185547 | Chiropractor | Bellevue, NE | 2006 |
| Gabrielle O'Neill | 1164093571 | Speech-Language Pathologist | Madison, WI | 2021 |
| Gabrielle O'Neill, LSW | 1629848932 | Social Worker | Abington, PA | 2024 |
| Gail O'Neill, RPT | 1457410573 | Physical Therapist | Palm Beach Gardens, FL | 2006 |
| Galen O'Neill | 1447779533 | Physician Assistant | Boston, MA | 2017 |
| Gavin O'Neill | 1376033159 | Addiction (Substance Use Disorder) Counselor | Oakland, CA | 2018 |
| Gene O'Neill, MSW | 1659487726 | Clinical Social Worker | Longview, WA | 2006 |
| Genoveva O'Neill, MD | 1770848541 | Family Medicine Physician | Vancouver, WA | 2012 |
| Geoffery O'Neill, M.D. | 1871750497 | Anesthesiology Physician | Marina Del Rey, CA | 2008 |
| George O'Neill, PHD | 1194795369 | Clinical Psychologist | West Fargo, ND | 2006 |
| Gerald O'Neill, MD | 1730334277 | Emergency Medicine Physician | Philadelphia, PA | 2008 |
| Gilmore O'Neill, MD | 1285615716 | Neurology Physician | Boston, MA | 2005 |
| Glinda O'Neill, LCSW | 1558548651 | Social Worker | Portsmouth, VA | 2008 |
| Gloria O'Neill | 1407232663 | Psychiatric/Mental Health Nurse Practitioner | Albuquerque, NM | 2015 |
| Glynn O'Neill, PA-C | 1952074577 | Physician Assistant | Baton Rouge, LA | 2021 |
| Grady O'Neill, MA | 1245695899 | Professional Counselor | Hurley, WI | 2015 |
| Gregory O'Neill, D.C. | 1720323975 | Chiropractor | Lititz, PA | 2012 |
| Gregory O'Neill, MD | 1871600254 | Family Medicine Physician | Kennebunk, ME | 2006 |
| Grey O'Neill | 1538467170 | Registered Nurse | New York, NY | 2011 |
| H. Katherine O'Neill, PHD | 1639149750 | Clinical Psychologist | West Fargo, ND | 2006 |
| Hailey O'Neill, PHARMD | 1821614017 | Pharmacist | East Moline, IL | 2020 |
| Haley O'Neill, APRN CNM, RN | 1285404228 | Advanced Practice Midwife | Saint Paul, MN | 2024 |
| Halina O'Neill, PHYSICIAN | 1467590307 | Acupuncturist | Boca Raton, FL | 2007 |
| Hannah O'Neill | 1295438513 | Internal Medicine Physician | Houston, TX | 2023 |
| Hannah O'Neill, PA-C | 1649930447 | Physician Assistant | Fort Worth, TX | 2021 |
| Hannah O'Neill, PT | 1972851210 | Physical Therapist | Sparks, NV | 2012 |
| Harper O'Neill, MS | 1013580216 | Mental Health Counselor | Raleigh, NC | 2021 |
| Heather O'Neill, BSW | 1003641317 | Counselor | New Smyrna Beach, FL | 2024 |
| Heather O'Neill, LMFT | 1154904753 | Marriage & Family Therapist | San Francisco, CA | 2021 |
| Heather O'Neill, LICSW | 1245436039 | Clinical Social Worker | Saint Paul, MN | 2007 |
| Heather O'Neill, MS, OTR/L | 1548594609 | Occupational Therapist | Cambridge, MA | 2009 |
| Heather O'Neill | 1649003385 | Behavior Technician | Carol Stream, IL | 2024 |
| Heather O'Neill, M.S., CCC-SLP | 1801157540 | Speech-Language Pathologist | Jefferson, WI | 2012 |
| Helen O'Neill, B.A. | 1851687768 | Mental Health Counselor | Anchorage, AK | 2011 |
| Hillary O'Neill, COTA/L | 1679258297 | Occupational Therapy Assistant | Asheville, NC | 2023 |
| Holly O'Neill | 1619501640 | Behavior Technician | Live Oak, TX | 2020 |
| Hope O'Neill | 1497574800 | Student in an Organized Health Care Education/Training Program | Johnson City, TN | 2024 |
| Hugh O'Neill, MD | 1578775987 | Family Medicine Physician | Streetsboro, OH | 2007 |
| Ian O'Neill | 1780203281 | Mental Health Counselor | Sammamish, WA | 2020 |
| Irene O'Neill | 1154031599 | Mental Health Counselor | Hilliard, OH | 2022 |
| Irene O'Neill, BS | 1164795183 | Mental Health Counselor | Wheaton, IL | 2012 |
| Irene O'Neill, MD | 1790809846 | Specialist | Crown Point, IN | 2007 |
| Isabel O'Neill | 1386581361 | Behavior Technician | Willmar, MN | 2026 |
| Isabella O'Neill | 1649047127 | Behavior Technician | Meridian, ID | 2023 |
| Isabella O'Neill, FNP-BC | 1730962432 | Family Nurse Practitioner | New York, NY | 2023 |
| Isaiah O'Neill | 1285347856 | Peer Specialist | Astoria, OR | 2022 |
| Iulia O'Neill, MD | 1255381927 | Family Medicine Physician | Bloomingdale, IL | 2006 |
| Jack O'Neill, D.C. | 1588734495 | Rehabilitation Chiropractor | Oxnard, CA | 2006 |
| Jacob O'Neill | 1003488446 | Physical Therapy Assistant | Elkhorn, NE | 2021 |
| Jacob O'Neill, M.D. | 1104822279 | Orthopaedic Surgery Physician | Evansville, IN | 2005 |
| Jacob O'Neill, CPC | 1669267464 | Counselor | Monroe, WA | 2025 |
| Jacqueline O'Neill, MSTOM, L.AC. | 1164671202 | Acupuncturist | Chicago, IL | 2008 |
| Jacqueline O'Neill, PT, DPT | 1326558214 | Physical Therapist | Washington, DC | 2017 |
| Jacqueline O'Neill, MD | 1588153886 | Hospitalist Physician | Orange, CA | 2018 |
| Jacqueline O'Neill | 1760077549 | Case Manager/Care Coordinator | Cincinnati, OH | 2021 |
| Jacy O'Neill, LAC. | 1619329877 | Acupuncturist | Billings, MT | 2016 |
| Jaine O'Neill, LCSW | 1780741694 | Clinical Social Worker | New York, NY | 2007 |
| Jake O'Neill | 1205228483 | Developmental Therapist | Coral Springs, FL | 2015 |
| Jamal O'Neill, LMT | 1417180407 | Massage Therapist | Williamsville, NY | 2009 |
| James O'Neill, MD | 1053395749 | Anesthesiology Physician | Tallahassee, FL | 2005 |
| James O'Neill, M.D. | 1083615165 | Obstetrics & Gynecology Physician | Lexington, KY | 2005 |
| James O'Neill, BCBA | 1194090746 | Behavior Analyst | Springfield, MA | 2012 |
| James O'Neill, R.N. | 1215364344 | General Practice Registered Nurse | Bethesda, MD | 2013 |
| James O'Neill, OTR/L | 1245598432 | Occupational Therapist | Trevose, PA | 2012 |
| James O'Neill, LCPC | 1356695118 | Mental Health Counselor | Frederick, MD | 2012 |
| James O'Neill, DDS | 1376701045 | Oral and Maxillofacial Surgery (Dentist) | Fort Wayne, IN | 2008 |
| James O'Neill, D.O. | 1396731204 | Orthopaedic Surgery Physician | Lancaster, PA | 2005 |
| James O'Neill, R.PH | 1538352380 | Pharmacist | Voorheesville, NY | 2007 |
| James O'Neill, MB, MRCSI, ORL-HNS | 1538480785 | Otolaryngology Physician | New York, NY | 2010 |
| James O'Neill, MD | 1568467694 | Anesthesiology Physician | Cortlandt Manor, NY | 2005 |
| James O'Neill, DC | 1659457398 | Chiropractor | St Petersburg, FL | 2006 |
| James O'Neill, M.D. | 1699849869 | Psychiatry Physician | Wall, NJ | 2006 |
| James O'Neill, M.D. | 1770878670 | Interventional Cardiology Physician | Houston, TX | 2011 |
| James O'Neill, D.O. | 1871029645 | Emergency Medicine Physician | Brockton, MA | 2017 |
| James O'Neill, MD | 1922026053 | Emergency Medicine Physician | Winston Salem, NC | 2006 |
| James O'Neill, M.D. | 1962433433 | Anesthesiology Physician | St Petersburg, FL | 2006 |
| Jamie O'Neill, MD | 1013762509 | Family Medicine Physician | Boise, ID | 2024 |
| Jamie O'Neill | 1144150863 | Behavior Technician | Littleton, CO | 2026 |
| Jamie O'Neill, APRN | 1457124828 | Adult Health Nurse Practitioner | Jacksonville, FL | 2023 |
| Jamie O'Neill, DDS | 1760520076 | General Practice Dentistry | Toledo, OH | 2007 |
| Jamie O'Neill, PHARM. D. | 1912385899 | Pharmacist | Raleigh, NC | 2015 |
| Jan O'Neill, SLP | 1700092152 | Speech-Language Pathologist | Towson, MD | 2007 |
| Jane O'Neill, R.PH | 1003131418 | Pharmacist | Delmar, NY | 2010 |
| Jane O'Neill, CRNP | 1225287436 | Adult Health Nurse Practitioner | West Chester, PA | 2008 |
| Jane O'Neill, R.D. | 1255650669 | Registered Dietitian | Montville, NJ | 2010 |
| Jane O'Neill | 1912595026 | Behavior Analyst | Peabody, MA | 2021 |
| Janet O'Neill, LVN | 1578040812 | Licensed Vocational Nurse | Harlingen, TX | 2018 |
| Janice O'Neill, LIC. AC. | 1326224940 | Acupuncturist | Pittsfield, MA | 2008 |
| Janine O'Neill, FNP - BC | 1700226313 | Family Nurse Practitioner | Clinton Township, MI | 2013 |
| Janine O'Neill, RPH | 1770254492 | Pharmacist | Bolivar, OH | 2021 |
| Jaray O'Neill | 1518893163 | Mental Health Counselor | Westampton, NJ | 2026 |
| Jason O'Neill | 1417258823 | Physical Therapy Assistant | Oswego, NY | 2010 |
| Jason O'Neill, RD | 1942028097 | Registered Dietitian | Chula Vista, CA | 2024 |
| Jay O'Neill, PA-C | 1700880150 | Physician Assistant | Neah Bay, WA | 2005 |
| Jeamilette O'Neill, A.U.D. | 1932175841 | Specialist | Ponce, PR | 2006 |
| Jeanna O'Neill | 1558061952 | Registered Nurse | Arlington, KY | 2023 |
| Jeffrey O'Neill, DPT | 1134196660 | Physical Therapist | Philadelphia, PA | 2006 |
| Jeffrey O'Neill | 1699207720 | Student in an Organized Health Care Education/Training Program | Farmington, CT | 2017 |
| Jenna O'Neill, MD | 1659533404 | Dermatology Physician | Orchard Park, NY | 2008 |
| Jennica O'Neill, DPT | 1124691878 | Physical Therapist | Marion, KS | 2021 |
| Jennifer O'Neill | 1063096501 | Nurse Practitioner | Summit, NJ | 2021 |
| Jennifer O'Neill, MA LP BCBA | 1114214103 | Behavior Analyst | Mendota Heights, MN | 2011 |
| Jennifer O'Neill | 1134729742 | Pharmacist | Sturbridge, MA | 2020 |
| Jennifer O'Neill, FNP-BC | 1144933987 | Registered Nurse | Turnersville, NJ | 2022 |
| Jennifer O'Neill | 1174196851 | Developmental Therapist | Milford, MA | 2021 |
| Jennifer O'Neill | 1225391337 | Professional Counselor | Tucson, AZ | 2012 |
| Jennifer O'Neill, NBCHWC | 1245044122 | Health & Wellness Coach | Powhatan, VA | 2025 |
| Jennifer O'Neill, PA-C | 1295825347 | Physician Assistant | West Bloomfield, MI | 2006 |
| Jennifer O'Neill | 1356864961 | Social Worker | San Francisco, CA | 2017 |
| Jennifer O'Neill | 1376118430 | Addiction (Substance Use Disorder) Counselor | Greenfield, MA | 2021 |
| Jennifer O'Neill, PT | 1417604786 | Physical Therapist | Sherman Oaks, CA | 2022 |
| Jennifer O'Neill | 1437545431 | Obstetrics & Gynecology Physician | Ann Arbor, MI | 2015 |
| Jennifer O'Neill, R.N.,A.P.N.,C. | 1467593137 | Women's Health Nurse Practitioner | Livingston, NJ | 2007 |
| Jennifer O'Neill, BSN, RN | 1538056460 | School Registered Nurse | Lynnwood, WA | 2025 |
| Jennifer O'Neill, LMT | 1538901723 | Massage Therapist | Guttenberg, NJ | 2024 |
| Jennifer O'Neill, RDN | 1629780192 | Registered Dietitian | Colton, CA | 2022 |
| Jennifer O'Neill, CRNP | 1689071839 | Gerontology Nurse Practitioner | Allentown, PA | 2014 |
| Jennifer O'Neill, MD | 1730171760 | Surgery Physician | Columbia, MO | 2005 |
| Jennifer O'Neill, MPT | 1730291444 | Physical Therapist | Salisbury, MD | 2006 |
| Jennifer O'Neill, CRNA | 1790920866 | Certified Registered Nurse Anesthetist | Jacksonville, FL | 2008 |
| Jenny O'Neill, FNP-BC | 1003265380 | Nurse Practitioner | Columbia, SC | 2016 |
| Jessica O'Neill, P.A.-C | 1124253778 | Physician Assistant | West Columbia, SC | 2009 |
| Jessica O'Neill, PHARM.D. | 1215033733 | Pharmacist | Ann Arbor, MI | 2006 |
| Jessica O'Neill, FNP | 1316584741 | Family Nurse Practitioner | Boston, MA | 2019 |
| Jessica O'Neill, D.O | 1437560547 | Family Medicine Physician | Garner, NC | 2014 |
| Jessica O'Neill, LCSW | 1538052667 | Social Worker | Worcester, MA | 2025 |
| Jessica O'Neill, AP | 1659098408 | Acupuncturist | Hobe Sound, FL | 2022 |
| Jessica O'Neill, MSW, LCSW | 1659653905 | Clinical Social Worker | Raleigh, NC | 2011 |
| Jessica O'Neill | 1831528314 | Specialist | Victor, NY | 2013 |
| Jessica O'Neill, MED CCC-SLP | 1881732337 | Speech-Language Pathologist | Port Saint Lucie, FL | 2007 |
| Jessica O'Neill, LCSW | 1912564923 | Social Worker | New York, NY | 2019 |
| Jessica O'Neill, PA-C | 1992467310 | Physician Assistant | Kenner, LA | 2021 |
| Jevie O'Neill, DPT | 1235697772 | Geriatric Physical Therapist | Chesapeake, VA | 2019 |
| Jilian O'Neill, PH.D | 1396228748 | Clinical Neuropsychologist | Columbus, OH | 2018 |
| Jill O'Neill | 1093252249 | Clinical Social Worker | Baltimore, MD | 2017 |
| Jill O'Neill, BS | 1326313065 | Case Manager/Care Coordinator | Nashua, NH | 2012 |
| Jill O'Neill, M.ED., LPC | 1487904801 | Professional Counselor | Victoria, TX | 2012 |
| Jillian O'Neill, MD | 1265996565 | Speech-Language Pathologist | El Paso, TX | 2019 |
| Joanna O'Neill, MA. LPC. NCC. DCC. | 1053489427 | Mental Health Counselor | Hamilton, NJ | 2006 |
| Joanna O'Neill | 1184029068 | Developmental Therapist | Worcester, MA | 2014 |
| Joanne O'Neill, LPC, LMFT | 1871629402 | Marriage & Family Therapist | Austin, TX | 2007 |
| Jodi O'Neill | 1417815796 | Counselor | Putnam, CT | 2026 |
| Jodi O'Neill, RN, PNP | 1619214368 | Pediatric Nurse Practitioner | Minneapolis, MN | 2013 |
| Joel O'Neill | 1376427369 | Peer Specialist | Albany, OR | 2025 |
| Johanexis O'Neill | 1548047400 | Speech-Language Assistant | Kissimmee, FL | 2023 |
| Johanna O'Neill, MSW | 1417227588 | Clinical Social Worker | Canovanas, PR | 2012 |
| Johanna O'Neill, MD | 1730162710 | Obstetrics & Gynecology Physician | Strongsville, OH | 2005 |
| John O'Neill | 1063812873 | Physical Therapy Assistant | Walkersville, MD | 2014 |
| John O'Neill, PA | 1124153317 | Medical Physician Assistant | Olympia, WA | 2007 |
| John O'Neill | 1134874746 | Behavior Technician | Colorado Springs, CO | 2022 |
| John O'Neill, MD | 1154051787 | Urology Physician | Philadelphia, PA | 2022 |
| John O'Neill | 1184229908 | Social Worker | Brooklyn, NY | 2020 |
| John O'Neill, MD | 1215138730 | Internal Medicine Physician | Pittsburgh, PA | 2007 |
| John O'Neill, M.A. | 1245588995 | Behavior Analyst | Carbondale, IL | 2012 |
| John O'Neill | 1306275698 | Rehabilitation Counselor | Las Vegas, NV | 2013 |
| John O'Neill, MSW, LICSW | 1336421395 | Clinical Social Worker | West Springfield, MA | 2011 |
| John O'Neill, PHD | 1336781491 | Clinical Child & Adolescent Psychologist | Durham, NC | 2019 |
| John O'Neill, MD | 1346238516 | Ophthalmology Physician | Chevy Chase, MD | 2005 |
| John O'Neill, FNP | 1346946571 | Family Nurse Practitioner | Forest Falls, CA | 2023 |
| John O'Neill, OD | 1356383525 | Optometrist | Houston, TX | 2006 |
| John O'Neill, O.D. | 1356503403 | Optometrist | Crystal Lake, IL | 2008 |
| John O'Neill, M.D. | 1376500470 | Otolaryngology Physician | Westfield, MA | 2006 |
| John O'Neill, LICSW | 1376978353 | Clinical Social Worker | Spokane, WA | 2013 |
| John O'Neill, D.M.D. | 1386859338 | Dentist | River Edge, NJ | 2007 |
| John O'Neill, M.D. | 1417213430 | Ophthalmology Physician | Golden Valley, MN | 2012 |
| John O'Neill, MD | 1619613767 | Student in an Organized Health Care Education/Training Program | Washington, DC | 2022 |
| John O'Neill, D.M.D. | 1629369947 | Dentist | Savannah, GA | 2011 |
| John O'Neill, MB BCH BAO | 1780340372 | Pediatric Pathology Physician | Boston, MA | 2021 |
| John O'Neill, M.D. | 1831155381 | Diagnostic Radiology Physician | Jacksonville, FL | 2006 |
| Jolene O'Neill, PT | 1831384155 | Orthopedic Physical Therapist | Bellevue, WA | 2007 |
| Jolyce O'Neill, LCPC | 1073850335 | Professional Counselor | Severna Park, MD | 2013 |
| Jonah O'Neill | 1720877541 | Counselor | Boston, MA | 2025 |
| Jordan O'Neill, DMD | 1093558470 | General Practice Dentistry | Central Falls, RI | 2024 |
| Jordan O'Neill, D.O. | 1548796683 | Family Medicine Physician | Chicago, IL | 2017 |
| Jordan O'Neill, MSW, LSW | 1861179293 | Clinical Social Worker | Vernon, NJ | 2023 |
| Joseph O'Neill, MD, MS | 1013479005 | Internal Medicine Physician | Tampa, FL | 2019 |
| Joseph O'Neill, D.D.S. | 1477701605 | General Practice Dentistry | Arcadia, CA | 2008 |
| Joseph O'Neill | 1487846457 | Hearing Instrument Specialist | Des Moines, WA | 2007 |
| Joseph O'Neill, DO | 1508820523 | Family Medicine Physician | Ottsville, PA | 2006 |
| Joseph O'Neill, M.D. | 1528495629 | Internal Medicine Physician | Baltimore, MD | 2013 |
| Joseph O'Neill, M.D. | 1548203797 | Gynecology Physician | Wakefield, RI | 2006 |
| Joseph O'Neill, M.ED. , LPC | 1801176508 | Professional Counselor | Atlantic City, NJ | 2011 |
| Joshua O'Neill, M.D. | 1588692719 | Pediatrics Physician | Little Rock, AR | 2006 |
| Joshua O'Neill | 1720673247 | Behavior Technician | Marlborough, MA | 2021 |
| Judy O'Neill | 1609293885 | Speech-Language Pathologist | Farmingdale, NY | 2014 |
| Julia O'Neill, RN | 1225452220 | Community Health Registered Nurse | The Dalles, OR | 2014 |
| Julia O'Neill, DPT | 1437727047 | Physical Therapist | Rochester, MN | 2021 |
| Julia O'Neill | 1487063269 | Developmental Therapist | Quincy, IL | 2014 |
| Julie O'Neill | 1457042087 | Clinical Social Worker | Brockton, MA | 2023 |
| Julie O'Neill | 1497948608 | Doula | Indialantic, FL | 2007 |
| Julie O'Neill, MSW, LMSW | 1538911227 | Social Worker | Newark, DE | 2024 |
| Julie O'Neill, D.M.D. | 1629234836 | General Practice Dentistry | Louisville, KY | 2008 |
| Julie O'Neill, M.S., C.A.S. | 1790023646 | School Psychologist | Albany, NY | 2013 |
| Kacey O'Neill | 1669246476 | Behavior Technician | Altamonte Springs, FL | 2023 |
| Kaci O'Neill, MSN | 1396133260 | Family Nurse Practitioner | Poplar Bluff, MO | 2014 |
| Kaelan O'Neill | 1568327112 | Registered Dietitian | New Haven, CT | 2025 |
| Kaely O'Neill | 1467682476 | Pharmacist | Middletown, NY | 2009 |
| Kaitlin O'Neill, RBT-18-73616 | 1245702620 | Behavior Technician | Wheaton, IL | 2018 |
| Kaitlyn O'Neill, PHARMD | 1255002895 | Pharmacist | Surfside Beach, SC | 2021 |
| Kaitlyn O'Neill, MA CCC-SLP | 1336425966 | Speech-Language Pathologist | Wilmington, DE | 2011 |
| Kara O'Neill, MS, CCC-SLP | 1588762991 | Speech-Language Pathologist | Libertyville, IL | 2006 |
| Kara O'Neill | 1770451833 | Athletic Trainer | Dover Plains, NY | 2025 |
| Karen O'Neill, DO | 1003836230 | Emergency Medicine Physician | Gresham, OR | 2006 |
| Karen O'Neill, DC | 1093967531 | Chiropractor | Huntington Station, NY | 2008 |
| Karen O'Neill, DPT | 1316259567 | Orthopedic Physical Therapist | Fort Meade, MD | 2010 |
| Karen O'Neill, PT | 1447230347 | Physical Therapist | Phoenixville, PA | 2006 |
| Karen O'Neill, PHARMD | 1598428757 | Pharmacist | Lacey, WA | 2021 |
| Kari O'Neill, LICSW | 1194063164 | Clinical Social Worker | Issaquah, WA | 2013 |
| Karina O'Neill, PA-C | 1437033529 | Physician Assistant | Puyallup, WA | 2025 |
| Karmin O'Neill, DPT, MTC | 1376747238 | Physical Therapist | Las Vegas, NV | 2007 |
| Karol O'Neill, FNP | 1942319124 | Nurse Practitioner | Kewanee, IL | 2006 |
| Kasey O'Neill, BCBA, LBA | 1952198707 | Behavior Analyst | North Chesterfield, VA | 2025 |
| Kassidi O'Neill | 1750135463 | Behavior Technician | Edmond, OK | 2024 |
| Kate O'Neill | 1740139179 | Pharmacist | Longmont, CO | 2026 |
| Katelyn O'Neill, MS, CCC-SLP | 1255984084 | Speech-Language Pathologist | Bennington, VT | 2019 |
| Katharine O'Neill, MD | 1609628791 | Student in an Organized Health Care Education/Training Program | Indianapolis, IN | 2024 |
| Katherine O'Neill, CPNP-PC | 1134551377 | Nurse Practitioner | Akron, OH | 2013 |
| Katherine O'Neill, RN | 1265648877 | Registered Nurse | Yreka, CA | 2007 |
| Katherine O'Neill, DPT | 1265990378 | Physical Therapist | Simi Valley, CA | 2019 |
| Katherine O'Neill, LICSW | 1326523671 | Social Worker | Westborough, MA | 2018 |
| Katherine O'Neill, OTR/L | 1386299576 | Occupational Therapist | Summit, NJ | 2019 |
| Katherine O'Neill, RDN | 1649060930 | Registered Dietitian | Scranton, PA | 2025 |
| Katherine O'Neill, DPT | 1780963322 | Pediatric Physical Therapist | Dripping Springs, TX | 2011 |
| Kathleen O'Neill, D.C. | 1043495484 | Chiropractor | West Palm Beach, FL | 2008 |
| Kathleen O'Neill | 1053485862 | Marriage & Family Therapist | Lompoc, CA | 2006 |
| Kathleen O'Neill, MA, LCPC, CCTP | 1144553793 | Mental Health Counselor | Chicago, IL | 2009 |
| Kathleen O'Neill, LMSW, CASAC | 1477614766 | Clinical Social Worker | East Islip, NY | 2006 |
| Kathleen O'Neill, PAC | 1518914811 | Physician Assistant | Mount Vernon, WA | 2006 |
| Kathleen O'Neill, NP | 1538571807 | Adult Health Nurse Practitioner | Huntington Woods, MI | 2014 |
| Kathleen O'Neill, OTR/L | 1558923839 | Occupational Therapist | Philadelphia, PA | 2019 |
| Kathleen O'Neill, MD | 1619123270 | Reproductive Endocrinology Physician | Philadelphia, PA | 2008 |
| Kathleen O'Neill, R.N., C.R.N.P. | 1669606596 | Women's Health Nurse Practitioner | Washington, DC | 2009 |
| Kathleen O'Neill | 1669881280 | Family Nurse Practitioner | Braintree, MA | 2014 |
| Kathleen O'Neill, RPH | 1699076505 | Pharmacist | Napa, CA | 2010 |
| Kathleen O'Neill | 1700302452 | Physical Therapist | Signal Hill, CA | 2017 |
| Kathleen O'Neill, DPT | 1730856246 | Physical Therapist | Bedford, MA | 2021 |
| Kathleen O'Neill, MD | 1801274865 | Surgical Critical Care Physician | Philadelphia, PA | 2015 |
| Kathleen O'Neill, A.P.R.N. | 1902900210 | Gerontology Nurse Practitioner | Newington, CT | 2006 |
| Kathleen O'Neill, LMHC | 1972678670 | Mental Health Counselor | Stoneham, MA | 2006 |
| Kathleen O'Neill | 1972781177 | Pediatric Registered Nurse | Los Angeles, CA | 2008 |
| Kathryn O'Neill | 1205140894 | Speech-Language Pathologist | Bath, ME | 2010 |
| Kathryn O'Neill | 1881962207 | Addiction (Substance Use Disorder) Counselor | Staten Island, NY | 2011 |
| Kathy O'Neill | 1093201592 | Peer Specialist | Detroit, MI | 2018 |
| Katlyn O'Neill, DPT | 1629688353 | Physical Therapist | Georgetown, IN | 2020 |
| Katy O'Neill, L.I.C.S.W. | 1184041188 | Clinical Social Worker | Gig Harbor, WA | 2014 |
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).