Providers Charles Oneill, MD to Christopher Oneth, LMFT
300 individual NPIs in the federal registry, part 16,241 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 |
|---|---|---|---|---|
| Charles Oneill, MD | 1881673226 | Family Medicine Physician | Macomb, IL | 2006 |
| Chelsey Oneill, MS CCC-SLP | 1215221882 | Speech-Language Pathologist | Omaha, NE | 2011 |
| Chloe Oneill, ADT | 1356156996 | Addiction (Substance Use Disorder) Counselor | Centreville, MD | 2025 |
| Christine Oneill, PHARMD | 1750952040 | Pharmacist | Pittsburgh, PA | 2021 |
| Christopher Oneill | 1013741800 | Counselor | Fitchburg, WI | 2024 |
| Christopher Oneill, MD | 1134120470 | Anesthesiology Physician | Salem, NH | 2005 |
| Claire Oneill, DO | 1457290512 | Student in an Organized Health Care Education/Training Program | Norfolk, VA | 2026 |
| Cormac Oneill, MBBCH BAO LRCSI | 1710147541 | Urology Physician | Dover, NH | 2008 |
| Cornelius Oneill, M.D. | 1962420257 | Internal Medicine Physician | Jackson, MS | 2006 |
| Cynthia Oneill, APRN | 1043876683 | Nurse Practitioner | Tinley Park, IL | 2019 |
| Dana Oneill, LMT MA #15448 | 1720647746 | Massage Therapist | Northampton, MA | 2019 |
| Daniel Oneill | 1205765732 | Behavior Technician | Colorado Springs, CO | 2026 |
| Daniel Oneill, L.AC. | 1356657894 | Acupuncturist | Milwaukie, OR | 2010 |
| Daniel Oneill, MD | 1437183886 | Orthopaedic Surgery Physician | Plymouth, NH | 2006 |
| Daniel Oneill, MD | 1477533461 | Cardiovascular Disease Physician | San Francisco, CA | 2006 |
| Danielle Oneill, B.S., D.P.T. | 1790013316 | Physical Therapist | West Greenwich, RI | 2009 |
| Danne Oneill, LCSW | 1487057204 | Clinical Social Worker | Portland, OR | 2014 |
| David Oneill, DO | 1922092394 | Family Medicine Physician | Belleville, IL | 2005 |
| Deborah Oneill, PT | 1790850147 | Physical Therapist | Topeka, KS | 2006 |
| Dennis Oneill, CAC III | 1588252936 | Addiction (Substance Use Disorder) Counselor | Colorado Springs, CO | 2020 |
| Dennis Oneill, CRNA | 1720104318 | Certified Registered Nurse Anesthetist | Childress, TX | 2007 |
| Devi Oneill, NP | 1225141567 | Nurse Practitioner | Santa Cruz, CA | 2006 |
| Devon Oneill, DPT | 1265720882 | Physical Therapist | Wolcott, CT | 2011 |
| Diana Oneill, FNP | 1427109990 | Family Nurse Practitioner | Hewlett, NY | 2007 |
| Donald Oneill, MD | 1861459406 | Orthopaedic Surgery Physician | Norfolk, VA | 2006 |
| Douglas Oneill, MD | 1003893082 | Internal Medicine Physician | North Adams, MA | 2005 |
| Elizabeth Oneill, MA | 1235069113 | Mental Health Counselor | Rockport, MA | 2026 |
| Elizabeth Oneill, LPC | 1316294051 | Professional Counselor | Columbia, SC | 2012 |
| Elizabeth Oneill, CRNA | 1972558591 | Certified Registered Nurse Anesthetist | Orlando, FL | 2006 |
| Emily Oneill, LCSW | 1487701066 | Clinical Social Worker | Lithia, FL | 2007 |
| Erin Oneill, PHARMD | 1083914568 | Pharmacist | Marquette, MI | 2010 |
| Erin Oneill | 1114745866 | Mental Health Counselor | Medford, MA | 2024 |
| Erin Oneill | 1275127441 | Behavior Analyst | Quincy, MA | 2021 |
| Erin Oneill | 1639673684 | Case Manager/Care Coordinator | Worthington, OH | 2018 |
| Erin Oneill, LCSWR | 1902994148 | Social Worker | Guilderland, NY | 2006 |
| Eugene Oneill, DC | 1790842029 | Chiropractor | Branchburg, NJ | 2007 |
| Evan Oneill | 1396543815 | Emergency Medical Services (Emergency Medicine) Physician | Pleasant Mount, PA | 2025 |
| Francis Oneill, RPH | 1265607097 | Pharmacist | Coal Township, PA | 2008 |
| Gabrielle Oneill | 1407567506 | Specialist | Ravena, NY | 2022 |
| Gail Oneill, LMHC | 1215259742 | Mental Health Counselor | Melbourne, FL | 2010 |
| Gail Oneill, P.T. | 1881638757 | Physical Therapist | Hartland, MI | 2006 |
| Gerald Oneill, RPH, BS, MS, PHARMD | 1194566927 | Oncology Pharmacist | Long Island City, NY | 2024 |
| Gregory Oneill, CRNA | 1174511141 | Certified Registered Nurse Anesthetist | Palestine, TX | 2005 |
| Hannah Oneill, MD | 1336089465 | Student in an Organized Health Care Education/Training Program | Aurora, CO | 2026 |
| Hannah Oneill | 1861228132 | Speech-Language Assistant | Lewiston, ME | 2024 |
| Heather Oneill | 1114526035 | Massage Therapist | Fountain Hills, AZ | 2020 |
| Heather Oneill, PSY.D. | 1629113634 | Clinical Psychologist | San Diego, CA | 2007 |
| Helen Oneill, FNP | 1659469856 | Family Nurse Practitioner | Syracuse, NY | 2006 |
| Hilary Oneill, M.D. | 1104048040 | Psychiatry Physician | Phila, PA | 2007 |
| Hugh Oneill, MD | 1578507430 | Family Medicine Physician | Orland Park, IL | 2006 |
| Jack Oneill, MS, AT, CES | 1366047912 | Athletic Trainer | Dublin, OH | 2020 |
| Jaclyn Oneill, DC | 1629626627 | Chiropractor | Gaylord, MI | 2019 |
| Jacob Oneill | 1790633709 | Addiction (Substance Use Disorder) Counselor | Pasadena, CA | 2026 |
| James Oneill | 1457849143 | Behavior Technician | St Louis Park, MN | 2018 |
| James Oneill, MD | 1558453969 | Pediatric Surgery Physician | Nashville, TN | 2006 |
| James Oneill, LPC | 1598866295 | Professional Counselor | Metairie, LA | 2006 |
| James Oneill, AHCNS-BC | 1972759389 | Adult Health Clinical Nurse Specialist | Austin, TX | 2008 |
| Jamie Oneill | 1578838280 | Massage Therapist | Ocoee, FL | 2012 |
| Jenna Oneill | 1740123199 | Specialist | Amityville, NY | 2026 |
| Jennifer Oneill, N.P. | 1306215678 | Primary Care Nurse Practitioner | Forest Hills, NY | 2015 |
| Jennifer Oneill, LMSW | 1316169600 | Clinical Social Worker | Bingham Farms, MI | 2007 |
| Jennifer Oneill, NP | 1326147703 | Family Nurse Practitioner | Riverhead, NY | 2006 |
| Jennifer Oneill | 1598485625 | Personal Care Attendant | Papillion, NE | 2022 |
| Jennifer Oneill, FNP | 1699967745 | Acute Care Nurse Practitioner | Wenatchee, WA | 2007 |
| Jennifer Oneill, LPN | 1851210413 | Licensed Practical Nurse | Waterford, NY | 2026 |
| Jessica Oneill, FNP-C | 1346128808 | Family Medicine Physician | Holbrook, MA | 2025 |
| Jessica Oneill, SLP | 1366133720 | Speech-Language Pathologist | Neptune, NJ | 2023 |
| Jessica Oneill, OT | 1477831352 | Occupational Therapist | Forest City, PA | 2011 |
| Jessica Oneill, PA | 1689612442 | Physician Assistant | Raleigh, NC | 2006 |
| Jill Oneill, CRNA | 1851734685 | Certified Registered Nurse Anesthetist | Chicago, IL | 2013 |
| Joan Oneill | 1174088587 | Mental Health Counselor | Northfield, IL | 2019 |
| John Oneill, MSW | 1033263595 | Mental Health Counselor | South Easton, MA | 2007 |
| John Oneill, MD | 1184635575 | Dermatology Physician | Bethesda, MD | 2006 |
| John Oneill, DO | 1265445233 | Internal Medicine Physician | Newark, DE | 2006 |
| John Oneill, EDD, LCSW, LCDC, CAS | 1336338904 | Clinical Social Worker | Austin, TX | 2007 |
| John Oneill, LICSW | 1346200672 | Social Worker | St Albans, VT | 2006 |
| John Oneill, RPA | 1508891953 | Physician Assistant | Endwell, NY | 2006 |
| John Oneill, MT MASSAGE THERAPIST | 1609054600 | Massage Therapist | Monroeville, PA | 2008 |
| John Oneill, DDS | 1659584217 | Dentist | Chula Vista, CA | 2007 |
| Jonathan Oneill, PT, DPT | 1144919952 | Physical Therapist | Lake Havasu City, AZ | 2023 |
| Joseph Oneill, RPH | 1750982591 | Pharmacist | Exton, PA | 2020 |
| Jovi Ann Oneill, LMBT | 1386519973 | Massage Therapist | Fayetteville, NC | 2025 |
| Julie Oneill | 1194453563 | Personal Care Attendant | Elkhorn, NE | 2022 |
| Julie Ann Oneill, PMHNP | 1578165205 | Psychiatric/Mental Health Nurse Practitioner | Framingham, MA | 2020 |
| Kaley Oneill, NP | 1649042631 | Family Nurse Practitioner | Chelmsford, MA | 2023 |
| Kara Oneill | 1942124193 | Mental Health Counselor | Rochester, NY | 2026 |
| Katherine Oneill, PA-C | 1588147649 | Physician Assistant | Boston, MA | 2018 |
| Katherine Oneill, LCPC | 1841443652 | Mental Health Counselor | Whitehall, MT | 2008 |
| Kathleen Oneill | 1174403232 | Registered Nurse | Warrenville, IL | 2025 |
| Kathleen Oneill, NURSE PRACTITIONER | 1306942263 | Family Nurse Practitioner | Plano, TX | 2006 |
| Kathleen Oneill, DPT | 1649312687 | Physical Therapist | Tuba City, AZ | 2007 |
| Kathleen Oneill | 1891302121 | Registered Nurse | Lawrence, MA | 2020 |
| Kathryn Oneill, BCBA | 1184333171 | Behavior Analyst | King Of Prussia, PA | 2022 |
| Katie Oneill | 1871457275 | Counselor | Braintree, MA | 2025 |
| Katie Oneill | 1952220782 | Family Nurse Practitioner | Fairfield, CT | 2026 |
| Kayla Oneill | 1568334068 | Behavior Technician | Broomall, PA | 2025 |
| Keegan Oneill | 1730953001 | Independent Duty Medical Technicians | Minneapolis, MN | 2023 |
| Kelly Oneill | 1417675091 | Family Nurse Practitioner | Culpeper, VA | 2022 |
| Kelly Oneill, PA-C | 1477799310 | Physician Assistant | Aurora, CO | 2008 |
| Kelsey Oneill, PA-C | 1073116562 | Physician Assistant | Sparta, NJ | 2020 |
| Kevin Oneill | 1245723451 | Physical Therapist | Detroit, MI | 2018 |
| Kierran Oneill, APCC | 1235787029 | Counselor | Santa Ana, CA | 2019 |
| Kimberly Oneill | 1659817450 | Dental Assistant | North Billerica, MA | 2017 |
| Kimberly Oneill | 1952769010 | Family Nurse Practitioner | Kettering, OH | 2016 |
| Kristen Oneill, M.AC, L.AC, LMT | 1366746646 | Acupuncturist | Arlington, VA | 2010 |
| Larissa Oneill, MD | 1003890963 | Family Medicine Physician | Round Rock, TX | 2005 |
| Larry Oneill, D.M.D. | 1174521348 | General Practice Dentistry | Elizabeth, CO | 2005 |
| Laura Oneill, LPC | 1356086722 | Professional Counselor | Fairfax, VA | 2022 |
| Laura Oneill | 1457971590 | Behavior Technician | Los Angeles, CA | 2020 |
| Lauren Oneill, M.D. | 1508216441 | Ophthalmology Physician | Phoenix, AZ | 2016 |
| Lauren Oneill, MSW, LCSW | 1548790132 | Clinical Social Worker | Arlington, MA | 2017 |
| Laurie Oneill, M.D. | 1720053093 | Family Medicine Physician | Port Orchard, WA | 2006 |
| Leonard Oneill, MD | 1215907787 | Internal Medicine Physician | Kalamazoo, MI | 2006 |
| Leslie Oneill | 1306912803 | Pediatric Physical Therapist | Lawrenceville, GA | 2006 |
| Lorraine Oneill, PT | 1194868471 | Physical Therapist | Hagerstown, MD | 2007 |
| Luanis Oneill, DC | 1376198580 | Chiropractor | Clearwater, FL | 2019 |
| Lucas Oneill | 1003614520 | Emergency Medical Services (Emergency Medicine) Physician | Clifford Township, PA | 2025 |
| Madeline Oneill, PHARMD | 1366085532 | Pharmacist | Canonsburg, PA | 2019 |
| Madison Oneill | 1144033994 | Behavior Technician | San Antonio, TX | 2025 |
| Mandy Oneill, LPN | 1285586446 | Internal Medicine Physician | Chippewa Falls, WI | 2026 |
| Marcy Oneill | 1255723573 | Physical Therapist | Media, PA | 2015 |
| Margaret Oneill, PHD | 1508348137 | Clinical Social Worker | Northampton, MA | 2018 |
| Mariceli Oneill, PSYD | 1780293308 | Psychologist | Hudsonville, MI | 2020 |
| Marissa Oneill, CAPDT | 1649110255 | Addiction (Substance Use Disorder) Counselor | San Francisco, CA | 2026 |
| Martin Oneill, MD | 1821067638 | Vascular Surgery Physician | Bloomington, IN | 2006 |
| Mary Oneill, MD | 1215142419 | Obstetrics & Gynecology Physician | Campbell, CA | 2007 |
| Mary Oneill, CRNA | 1336220649 | Certified Registered Nurse Anesthetist | Dallas, TX | 2006 |
| Mary Oneill, COTA | 1780891887 | Occupational Therapy Assistant | Elyria, OH | 2007 |
| Mary Oneill, CFNP | 1841374261 | Nurse Practitioner | Adelphi, MD | 2006 |
| Mary Oneill, L.M | 1851760821 | Midwife | Los Osos, CA | 2015 |
| Mary Oneill, OTR/L | 1962970103 | Physical Rehabilitation Occupational Therapist | New York, NY | 2018 |
| Maryann Oneill, LICENSED PROF COUNSE | 1164579645 | Professional Counselor | Freehold, NJ | 2007 |
| Maryhelen Oneill, RPH | 1760083661 | Pharmacist | West Chester, PA | 2020 |
| Maureen Oneill, NP | 1093866832 | Registered Nurse | Staten Island, NY | 2007 |
| Maureen Oneill, MD | 1114928744 | Pediatrics Physician | Hawthorne, CA | 2005 |
| Maureen Oneill, PAC | 1962518621 | Medical Physician Assistant | Saint Louis, MO | 2006 |
| Mayia Oneill | 1922478080 | Behavior Analyst | Farmington Hills, MI | 2015 |
| Megan Oneill | 1194462788 | Personal Care Attendant | Las Vegas, NV | 2022 |
| Megan Oneill | 1841132701 | Behavior Technician | Saint Charles, MO | 2026 |
| Melanie Oneill, PLPC | 1497386007 | Professional Counselor | New Orleans, LA | 2020 |
| Melanie Oneill, MSAT, ATC, LAT | 1972227536 | Athletic Trainer | Harrogate, TN | 2022 |
| Michael Oneill, MD | 1215943808 | Family Medicine Physician | Monument, CO | 2006 |
| Michael Oneill, DDS | 1326261025 | General Practice Dentistry | San Ramon, CA | 2007 |
| Michael Oneill, LPN | 1598110249 | Licensed Practical Nurse | Mentor, OH | 2016 |
| Michaela Oneill, PA | 1679930879 | Medical Physician Assistant | North Miami Beach, FL | 2016 |
| Michele Oneill, MD | 1811997588 | Family Medicine Physician | Auburn, CA | 2005 |
| Michele Oneill, MICHELE ONEILL LMP | 1902070436 | Reflexologist | Snohomish, WA | 2008 |
| Michelle Oneill, OTRL | 1093862427 | Mental Health Counselor | Wakefield, MA | 2007 |
| Michelle Oneill, PPS | 1295695617 | School Counselor | Mission Viejo, CA | 2025 |
| Michelle Oneill, PHD RN | 1427271964 | Community Health Registered Nurse | Pacific Palisades, CA | 2007 |
| Michelle Oneill | 1487269841 | Homemaker | Columbus, OH | 2020 |
| Nicolle Oneill, CRNA | 1700865813 | Certified Registered Nurse Anesthetist | Oro Valley, AZ | 2006 |
| Padraig Oneill, MD | 1629140702 | Clinical Cardiac Electrophysiology Physician | Sacramento, CA | 2006 |
| Patricia Oneill, REGISTERED DIETICIAN | 1366622854 | Registered Dietitian | Grand Rapids, MI | 2007 |
| Patricia Oneill, MSN,APRN | 1427278860 | Psychiatric/Mental Health Clinical Nurse Specialist | Port Republic, NJ | 2007 |
| Patrick Oneill, MD | 1346352945 | Psychiatry Physician | New Orleans, LA | 2006 |
| Patrick Oneill, CRNA | 1629037932 | Certified Registered Nurse Anesthetist | Dallas, TX | 2006 |
| Patrick Oneill, M.D. | 1831380658 | Orthopaedic Foot and Ankle Surgery Physician | Sarasota, FL | 2007 |
| Paul Oneill, CAADC | 1518782945 | Mental Health Counselor | Scranton, PA | 2024 |
| Paul Oneill, M.D. | 1548262611 | Hematology & Oncology Physician | McHenry, IL | 2005 |
| Raegan Oneill | 1285190066 | Pediatrics Physician | Austin, TX | 2019 |
| Rebecca Oneill, M.S. | 1053277012 | Speech-Language Pathologist | West Hartford, CT | 2026 |
| Rebecca Oneill, LMSW | 1760774202 | Mental Health Counselor | Rochester, NY | 2011 |
| Rebecca Oneill | 1821130964 | Pediatric Occupational Therapist | Venice, FL | 2007 |
| Rene Oneill | 1457918039 | Behavior Technician | Colorado Springs, CO | 2019 |
| Robert Oneill, M.D. | 1205810439 | Specialist | Hialeah, FL | 2005 |
| Robert Oneill, M.ED. | 1225371453 | School Psychologist | Port St Lucie, FL | 2013 |
| Robert Oneill | 1457703894 | Specialist | Knoxville, TN | 2016 |
| Robert Oneill, DDS | 1659593366 | General Practice Dentistry | Castro Valley, CA | 2007 |
| Robert Oneill, DMD | 1912921271 | Dentist | Roslindale, MA | 2006 |
| Roberta Oneill | 1487987467 | Speech-Language Pathologist | Claymont, DE | 2009 |
| Robin Oneill | 1184829467 | Clinical Social Worker | San Pablo, CA | 2007 |
| Robin Oneill | 1861952178 | Behavior Technician | Venice, FL | 2019 |
| Ronald Oneill, PHARMACIST | 1174224802 | Ambulatory Care Pharmacist | Allison Park, PA | 2023 |
| Ryan Oneill | 1760334940 | Student in an Organized Health Care Education/Training Program | Zeeland, MI | 2026 |
| Sara Oneill | 1053824540 | Occupational Therapist | Lake Forest, CA | 2017 |
| Sarah Oneill, LICSW | 1013411792 | Clinical Social Worker | Seattle, WA | 2018 |
| Sean Oneill, O.D. | 1083770341 | Optometrist | Chicago, IL | 2006 |
| Shane Oneill, MD | 1477548113 | Family Medicine Physician | Huntsville, AL | 2005 |
| Shani Oneill | 1407360597 | Occupational Therapy Assistant | Roanoke, VA | 2017 |
| Shannon Oneill | 1972481208 | Mental Health Counselor | Langhorne, PA | 2025 |
| Shawn Oneill, CDCA, PRS | 1033841945 | Addiction (Substance Use Disorder) Counselor | Columbus, OH | 2022 |
| Sheila Oneill | 1265275564 | Peer Specialist | Auburn, CA | 2024 |
| Shena Oneill, FNP | 1346984408 | Family Nurse Practitioner | Missoula, MT | 2022 |
| Sierra Oneill | 1669207007 | Mental Health Counselor | Manalapan, NJ | 2024 |
| Sonya Oneill, PA-C | 1346697422 | Physician Assistant | Boston, MA | 2016 |
| Stefanie Oneill, LPC | 1558797431 | Professional Counselor | Saint Louis, MO | 2013 |
| Steven Oneill | 1528984473 | Mental Health Counselor | Raleigh, NC | 2026 |
| Sueellen Oneill, PT | 1609394378 | Physical Therapist | Moorestown, NJ | 2017 |
| Suellen Oneill, M.S., PHARMD | 1972423275 | Pharmacist | Wellesley, MA | 2026 |
| Susan Oneill, APNP | 1194766345 | Nurse Practitioner | Danville, IL | 2006 |
| Suzanne Oneill | 1952891418 | Registered Nurse | West Brentwood, NY | 2018 |
| Tanya Oneill, CRNA | 1497865927 | Certified Registered Nurse Anesthetist | Hamilton Square, NJ | 2006 |
| Teresa Oneill, NP | 1144887530 | Nurse Practitioner | Santa Maria, CA | 2019 |
| Thomas Oneill | 1972689594 | Physical Therapist | Cortlandt Manor, NY | 2006 |
| Timothy Oneill, DO | 1033117890 | Family Medicine Physician | Clarkston, MI | 2005 |
| Timothy Oneill, PA | 1831161124 | Physician Assistant | Minden, NV | 2006 |
| Timothy Oneill, DO | 1912996620 | Anesthesiology Physician | Muskegon, MI | 2005 |
| Tina Oneill, NP | 1780723007 | Adult Health Nurse Practitioner | Carthage, NY | 2007 |
| Tracy Oneill, PA | 1487756136 | Medical Physician Assistant | North Syracuse, NY | 2006 |
| Victoria Oneill, DO | 1386330587 | Family Medicine Physician | Victoria, TX | 2023 |
| William Oneill, MD | 1881676435 | Cardiovascular Disease Physician | Naples, FL | 2005 |
| William Oneill | 1902943392 | Certified Registered Nurse Anesthetist | Ogdensburg, NY | 2007 |
| Yajaira Oneill | 1831680586 | Specialist | Mount Olive, NC | 2018 |
| Zachary Oneill, DO | 1417199704 | Anatomic Pathology & Clinical Pathology Physician | Greenville, NC | 2009 |
| Crystal Oneill Arroyo, PHARMD | 1497492946 | Pharmacist | Carolina, PR | 2022 |
| Kristi Oneill Tharp | 1750808887 | Social Worker | McHenry, IL | 2017 |
| Catherine Oneill-Alfano, R.PH. | 1548430739 | Pharmacist | Philadelphia, PA | 2008 |
| Eduardo Oneill-Caban | 1801683917 | Counselor | Willimantic, CT | 2025 |
| Jessica Oneill-Delgado, PA-C | 1699212480 | Physician Assistant | Mount Dora, FL | 2017 |
| Melanie Oneill-Galan | 1912336165 | Mental Health Counselor | Portland, OR | 2013 |
| Jacqueline Oneill-Murray | 1497161194 | Pharmacist | Orlando, FL | 2014 |
| Brianna Oneill-Nguyen | 1396381497 | Mental Health Counselor | Flourtown, PA | 2019 |
| Jose Oneill-Rivera, M.D. | 1275557373 | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Bayamon, PR | 2006 |
| Oscar Oneill-Rosado, M.D. | 1821075441 | Family Medicine Physician | Melbourne, FL | 2005 |
| Elizabeth Oneill-Sheehan, LCSW | 1649971508 | Clinical Social Worker | East Longmeadow, MA | 2023 |
| Christopher Oneisom, LMT, RCA | 1114320538 | Massage Therapist | Panama City, FL | 2014 |
| Rawan Oneiz, MD | 1275053993 | Hospitalist Physician | Decatur, GA | 2017 |
| Afamefune Onejeme, M.D. | 1013962406 | Gynecology Physician | Brooklyn, NY | 2006 |
| Chinenye Onejeme | 1982592820 | Internal Medicine Physician | Galveston, TX | 2025 |
| Chinwuba Onejeme, M.D. | 1790718989 | Internal Medicine Physician | Baltimore, MD | 2006 |
| Gloria Onejeme, FNP-BC | 1922714377 | Family Nurse Practitioner | Randallstown, MD | 2023 |
| Nnedinma Onejeme | 1033834361 | Pharmacist | Cherry Hill, NJ | 2022 |
| Olivia Onejeme, MS, RBT | 1013406115 | Behavior Technician | Stockton, CA | 2018 |
| Onyekwelu Onejeme | 1528860996 | Behavior Technician | Sacramento, CA | 2025 |
| Margot Onek, MD | 1306082144 | Psychiatry Physician | Washington, DC | 2008 |
| Michael Oneka, DO | 1366457129 | Family Medicine Physician | Muskegon, MI | 2006 |
| Yvonne Onekeo | 1770233793 | Licensed Vocational Nurse | San Antonio, TX | 2022 |
| Jesse Onekhena, DMD, MD | 1447626429 | Oral and Maxillofacial Surgery (Dentist) | Conover, NC | 2015 |
| Sandra Onekhena, DMD | 1568069680 | General Practice Dentistry | Fayetteville, NC | 2020 |
| Eric Onekon | 1548532179 | Home Health Aide | Washington, DC | 2012 |
| Julienne Onekon | 1043663776 | Home Health Aide | Hyattsville, MD | 2016 |
| Sarah Onekon | 1497019616 | Home Health Aide | Washington, DC | 2012 |
| Sylvanus Onekon | 1740544014 | Home Health Aide | Washington, DC | 2012 |
| Vitalis Onekon | 1578228441 | Case Manager/Care Coordinator | Greenbelt, MD | 2021 |
| Hakan Onel | 1346131943 | Behavior Technician | Rockville, MD | 2025 |
| Karen Onel, M.D. | 1821027004 | Pediatric Rheumatology Physician | New York, NY | 2006 |
| Kenan Onel, MD, PHD | 1043360084 | Clinical Genetics (M.D.) Physician | Buffalo, NY | 2007 |
| Muhammed Onel, MD | 1285424366 | Internal Medicine Physician | Royal Oak, MI | 2025 |
| Andrew Onela, DDS | 1376615583 | General Practice Dentistry | Milwaukee, WI | 2006 |
| Faith Onelangsy, DO | 1477393676 | Emergency Medicine Physician | York, PA | 2024 |
| Kalysha Onelien | 1447146527 | Behavior Technician | Rockville, MD | 2025 |
| Joshua Onellion | 1477926442 | Rehabilitation Practitioner | Santa Rosa, CA | 2015 |
| Emily Onello, MD | 1962452359 | Family Medicine Physician | Duluth, MN | 2006 |
| Tsuru Onello | 1578168910 | Pharmacist | Las Vegas, NV | 2020 |
| Autumn Onelove | 1427748524 | Massage Therapist | River Falls, WI | 2023 |
| Benjamin Onelove | 1780184069 | Massage Therapist | River Falls, WI | 2018 |
| Constance Onemany, D.M.D. | 1619316528 | General Practice Dentistry | Dayton, TX | 2013 |
| Felicia Onemu | 1831567817 | Family Nurse Practitioner | Houston, TX | 2015 |
| Bonita Oneonta-Becraft, LMFT | 1568678035 | Marriage & Family Therapist | College Place, WA | 2007 |
| Joanne Onephonesy | 1770356578 | Adult Companion | Sacramento, CA | 2023 |
| Susan Oneppo, FAMILY TRAINER | 1336480235 | Case Manager/Care Coordinator | Columbia, SC | 2013 |
| Alyssa Oner, LMSW | 1881404226 | Social Worker | Croton On Hudson, NY | 2025 |
| Andrea Oner, PT | 1518031210 | Physical Therapist | Falls Church, VA | 2006 |
| Banu Oner, M.D. | 1508026626 | Diagnostic Radiology Physician | Derry, NH | 2008 |
| Ceyda Oner, MD | 1790945582 | Obstetrics & Gynecology Physician | New York, NY | 2008 |
| Katina Oner, LPN | 1780198861 | Licensed Practical Nurse | Lakeland, FL | 2017 |
| Kelsie Oner | 1013709245 | Behavior Technician | Farmington Hills, MI | 2025 |
| Martha Oner, CRNA | 1295714228 | Certified Registered Nurse Anesthetist | Miami, FL | 2006 |
| Mustafa Oner | 1245982628 | Behavior Technician | Fayetteville, NC | 2022 |
| Semra Oner | 1912517301 | Student in an Organized Health Care Education/Training Program | Pasadena, CA | 2020 |
| Ozlem Onerci Celebi | 1821442468 | Student in an Organized Health Care Education/Training Program | Boston, MA | 2016 |
| Aser Ones, LCSW | 1417336454 | Clinical Social Worker | West Palm Beach, FL | 2015 |
| Lian Ones Hernandez | 1932718830 | Behavior Technician | Miami, FL | 2020 |
| Yanet Ones Padron | 1396552634 | Behavior Technician | Riverview, FL | 2024 |
| Victor Oneschuck | 1376865634 | Case Manager/Care Coordinator | San Luis Obispo, CA | 2010 |
| Joseph Onesi | 1124596747 | Mental Health Counselor | Uniontown, PA | 2018 |
| Donna Onesian | 1245435049 | Clinical Social Worker | Dearborn, MI | 2007 |
| Janet Onesian, LMSW | 1588684302 | Clinical Social Worker | Taylor, MI | 2006 |
| Haley Onesko | 1215760947 | Addiction (Substance Use Disorder) Counselor | Marion, OH | 2024 |
| Lisa Onesko, CNP | 1144221649 | Adult Health Nurse Practitioner | Garfield Heights, OH | 2005 |
| Megan Onesko, LPTA | 1528736998 | Physical Therapy Assistant | Charlottesville, VA | 2021 |
| Allison Oneslager, LCSW | 1316648330 | Clinical Social Worker | Tallahassee, FL | 2023 |
| Hillary Oneslager, PA | 1053050559 | Medical Physician Assistant | Aurora, CO | 2022 |
| Olivia Oneslager, MS CCC-SLP | 1558064915 | Speech-Language Pathologist | Wichita, KS | 2023 |
| Ruth Oneson, M.D. | 1871513218 | Anatomic Pathology Physician | Edmond, OK | 2006 |
| Susan Oneson, M.D. | 1538199690 | Diagnostic Radiology Physician | St Francis, WI | 2006 |
| Paula Onestak, RD | 1962762070 | Registered Dietitian | Beckley, WV | 2012 |
| Alysha Onesti, OTR/L | 1538680475 | Occupational Therapist | Williamstown, NJ | 2017 |
| Amanda Onesti | 1609706829 | Massage Therapist | Birnamwood, WI | 2026 |
| Ana Onesti, PA-C | 1255684965 | Physician Assistant | Fort Myers, FL | 2012 |
| Dana Onesti, RND, LD | 1902378797 | Registered Dietitian | Hudson, OH | 2018 |
| Jill Onesti, M.D. | 1063674497 | Surgical Oncology Physician | Grand Rapids, MI | 2008 |
| Madelyn Onesti | 1083446017 | Physician Assistant | Pearisburg, VA | 2024 |
| Olivia Onesti, LCSW | 1942926571 | Clinical Social Worker | Chicago, IL | 2022 |
| Sarah Onesti, LPC | 1912490392 | Professional Counselor | Columbus, OH | 2018 |
| Stephen Onesti, M.D. | 1114912458 | Neurological Surgery Physician | Rockville Centre, NY | 2005 |
| Trista Onesti, D.D.S. | 1033219589 | Dentist | Lyndhurst, OH | 2006 |
| John Onestinghel, M.D. | 1154379220 | Internal Medicine Physician | Parkersburg, WV | 2006 |
| Connor Onesto | 1891370649 | Behavior Technician | Sparks, NV | 2021 |
| Eric Onesto | 1023885779 | Marriage & Family Therapist | Woodland Hills, CA | 2023 |
| Maddison Onesto | 1255210704 | Behavior Technician | Anderson, CA | 2025 |
| Marie Onesto, DDS | 1669747325 | Dentist | Streator, IL | 2012 |
| Michael Onesto, CLINICAL COUNSELOR | 1689506081 | Counselor | Charleston, WV | 2026 |
| Victoria Onesty, DDS | 1700234689 | Pediatric Dentistry | Burke, VA | 2016 |
| Thongbanh Onesy | 1821074402 | Pharmacy Technician | Bellevue, WA | 2005 |
| Andrada Onet, OTR/L | 1174489975 | Occupational Therapist | Yonkers, NY | 2025 |
| Dana Onet, DDS | 1598886160 | General Practice Dentistry | Sun City West, AZ | 2007 |
| Daniel Onete, MD, MPH | 1417644824 | Student in an Organized Health Care Education/Training Program | Providence, RI | 2023 |
| Christopher Oneth, LMFT | 1912251117 | Marriage & Family Therapist | Modesto, CA | 2012 |
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).