Providers Joanna O'Leary, MD to Tanya O'Leary
300 individual NPIs in the federal registry, part 16,037 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. 101 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Joanna O'Leary, MD | 1417101999 | Neurology Physician | Portland, OR | 2008 |
| Joanne O'Leary | 1396864286 | Pharmacist | Somerville, MA | 2007 |
| Joanne O'Leary, DNP-RN, NCSN | 1437511698 | Registered Nurse | St Agatha, ME | 2016 |
| John O'Leary, MD | 1124025754 | Surgery Physician | Minneapolis, MN | 2005 |
| John O'Leary, PA-C | 1487347928 | Physician Assistant | Jackson, WI | 2023 |
| John O'Leary | 1497874044 | Psychiatry Physician | New York, NY | 2007 |
| John O'Leary, MD | 1578573895 | Adult Reconstructive Orthopaedic Surgery Physician | Columbus, OH | 2006 |
| John O'Leary, MSN, APRN, FNP-C | 1639719800 | Family Nurse Practitioner | Orlando, FL | 2020 |
| John O'Leary, PHD | 1942292354 | Clinical Psychologist | Royal Oak, MI | 2005 |
| Joni O'Leary, R.N. | 1255631354 | Registered Nurse | Columbus, OH | 2010 |
| Jordyn O'Leary, PA-C | 1265907851 | Physician Assistant | Moosic, PA | 2018 |
| Jorge O'Leary, MD | 1083610109 | Family Medicine Physician | Tucson, AZ | 2005 |
| Joseph O'Leary, D.D.S. | 1306063995 | General Practice Dentistry | Lone Tree, CO | 2007 |
| Joseph O'Leary, LCSW | 1356422299 | Clinical Social Worker | Copiague, NY | 2006 |
| Joseph O'Leary, MD | 1376689992 | Psychiatry Physician | Reisterstown, MD | 2007 |
| Joshua O'Leary | 1972114841 | Case Manager/Care Coordinator | Addison, IL | 2020 |
| Julia O'Leary, APRN, FNP, PMHNP-BC | 1114201365 | Psychiatric/Mental Health Nurse Practitioner | Sparks, NV | 2011 |
| Julia O'Leary, PH.D. | 1194802363 | Clinical Psychologist | Anchorage, AK | 2006 |
| Julia O'Leary, DPT | 1467180166 | Physical Therapist | Irving, TX | 2022 |
| Juliann O'Leary, LMHC | 1164857215 | Mental Health Counselor | Commack, NY | 2013 |
| Julianne O'Leary, RN | 1477418036 | Registered Nurse | Natick, MA | 2025 |
| Julie O'Leary, O.D. | 1124110812 | Optometrist | Plymouth, WI | 2006 |
| Julie O'Leary, RN | 1194308767 | Home Health Registered Nurse | Center Barnstead, NH | 2021 |
| Justin O'Leary, LMT | 1437047305 | Massage Therapist | Amesbury, MA | 2025 |
| Justine O'Leary, LICSW | 1790953057 | Clinical Social Worker | Quincy, MA | 2008 |
| Kacie O'Leary | 1629642210 | Case Manager/Care Coordinator | Ironton, OH | 2021 |
| Kade O'Leary, DO | 1588307607 | Family Medicine Physician | Dickson, TN | 2022 |
| Kaitlin O'Leary, APRN | 1568347458 | Family Nurse Practitioner | Durham, NC | 2025 |
| Kaitlyn O'Leary, OTR/L | 1235618505 | Occupational Therapist | Bellevue, NE | 2018 |
| Kaitlyn O'Leary | 1508718115 | Mental Health Counselor | Oxford, MA | 2026 |
| Kara O'Leary, PH.D. | 1932537446 | Clinical Psychologist | Saint Louis, MO | 2013 |
| Karyn O'Leary, LCSW | 1639442361 | Clinical Social Worker | Fairfax, VA | 2012 |
| Kassidy O'Leary, PA-C | 1922728427 | Physician Assistant | Princeton, MN | 2022 |
| Katelynn O'Leary, MD | 1265287791 | General Practice Physician | Fort Bragg, NC | 2024 |
| Katherine O'Leary | 1043743792 | Behavior Technician | San Francisco, CA | 2017 |
| Katherine O'Leary, LMHC | 1346450251 | Mental Health Counselor | Oswego, NY | 2007 |
| Katherine O'Leary | 1376561878 | Physical Therapist | Madison, WI | 2006 |
| Katherine O'Leary, PHD | 1457753659 | Clinical Psychologist | Red Bank, NJ | 2014 |
| Katherine O'Leary, PA-C | 1629752837 | Surgical Physician Assistant | Boston, MA | 2023 |
| Katherine O'Leary | 1801296785 | Mental Health Counselor | Stonington, CT | 2014 |
| Katherine O'Leary, M.A. | 1891835237 | Mental Health Counselor | Spokane, WA | 2007 |
| Katherine O'Leary, PA-C | 1952830994 | Physician Assistant | Butler, PA | 2017 |
| Kathleen O'Leary, MS. CCC-SLP/L | 1124635974 | Speech-Language Pathologist | Chicago, IL | 2020 |
| Kathleen O'Leary, M.D. | 1164497673 | Reproductive Endocrinology Physician | Carmel, IN | 2006 |
| Kathleen O'Leary, LMHC | 1275718199 | Mental Health Counselor | Wenatchee, WA | 2008 |
| Kathleen O'Leary, M.D. | 1366521684 | Psychiatry Physician | Conway, SC | 2006 |
| Kathleen O'Leary, MD | 1407847825 | Anesthesiology Physician | Buffalo, NY | 2005 |
| Kathleen O'Leary, CRNA | 1437139532 | Certified Registered Nurse Anesthetist | Saint Louis, MO | 2006 |
| Kathleen O'Leary, CRNA | 1508979287 | Certified Registered Nurse Anesthetist | Grand Rapids, MI | 2006 |
| Kathleen O'Leary, NP | 1720250764 | Nurse Practitioner | Burlington, MA | 2008 |
| Kathleen O'Leary, O.D. | 1790072650 | Optometrist | Worcester, MA | 2011 |
| Kathleen O'Leary | 1932493483 | Physical Therapy Assistant | Cleveland, OH | 2011 |
| Kathryn O'Leary, PA-C | 1205403540 | Physician Assistant | Virginia Beach, VA | 2021 |
| Kathryn O'Leary, SLP | 1396045704 | Speech-Language Pathologist | Ballston Spa, NY | 2010 |
| Kathryn O'Leary, PNP | 1831542505 | Pediatric Nurse Practitioner | Brooklyn, NY | 2016 |
| Katlyn O'Leary, MASSAGE THERAPIST | 1699599233 | Massage Therapist | Steamboat Springs, CO | 2024 |
| Kaylie O'Leary, BCBA | 1235962093 | Behavior Analyst | Merrimack, NH | 2024 |
| Keighley O'Leary | 1538639679 | Behavior Technician | Tempe, AZ | 2018 |
| Keisha O'Leary, APRN, FNP-C | 1205484987 | Family Nurse Practitioner | Lubbock, TX | 2019 |
| Keith O'Leary, PH.D. | 1437390309 | Psychologist | Stony Brook, NY | 2009 |
| Kelley O'Leary | 1699511147 | Occupational Therapist | Chula Vista, CA | 2024 |
| Kelly O'Leary, RN | 1689954570 | Registered Nurse | Bronx, NY | 2011 |
| Kelly O'Leary, PA-C | 1912131921 | Medical Physician Assistant | Bothell, WA | 2009 |
| Kelly O'Leary | 1922435080 | Speech-Language Pathologist | Boise, ID | 2013 |
| Kelsey O'Leary, MD | 1114585114 | Hospitalist Physician | Boston, MA | 2019 |
| Kelsey O'Leary | 1164893657 | Massage Therapist | Boise, ID | 2015 |
| Kelsey O'Leary, DPT | 1649736364 | Physical Therapist | Brooklyn, NY | 2019 |
| Kerry O'Leary | 1194021451 | Speech-Language Pathologist | Marion, IL | 2011 |
| Kerry O'Leary, ARNP | 1467706192 | Nurse Practitioner | Minnetonka, MN | 2012 |
| Kerry O'Leary, MD, MPH | 1871112201 | Psychiatry Physician | McKinney, TX | 2020 |
| Kerryann O'Leary | 1366009284 | Behavior Technician | Naples, FL | 2019 |
| Kevin O'Leary, MD | 1205123098 | Pediatrics Physician | Encinitas, CA | 2011 |
| Kevin O'Leary | 1386518744 | Student in an Organized Health Care Education/Training Program | Bronx, NY | 2025 |
| Kevin O'Leary, PSY.D. | 1427131788 | Clinical Psychologist | Chinle, AZ | 2006 |
| Kevin O'Leary, PSY.D. | 1487703989 | Clinical Psychologist | Anchorage, AK | 2007 |
| Kevin O'Leary, DDS | 1639386915 | Dentist | Janesville, WI | 2007 |
| Kevin O'Leary, MD | 1902837537 | Internal Medicine Physician | Chicago, IL | 2006 |
| Kevin O'Leary, R.N | 1982883708 | Registered Nurse | Omaha, NE | 2007 |
| Kim O'Leary, ATC | 1063032506 | Athletic Trainer | Antioch, CA | 2020 |
| Kimberly O'Leary, MSW LCSW | 1033277959 | Mental Health Counselor | Delphi, IN | 2006 |
| Kimberly O'Leary, MED, LATC | 1659407880 | Athletic Trainer | Easthampton, MA | 2007 |
| Kimberly O'Leary, PHD | 1790399590 | Clinical Psychologist | Columbia, MO | 2020 |
| Kimberly O'Leary, P.T. | 1972516052 | Physical Therapist | Concord, NH | 2006 |
| Kirstin O'Leary, D.D.S. | 1427343367 | General Practice Dentistry | Baytown, TX | 2011 |
| Kolleen O'Leary, R.D.H. | 1700128477 | Dental Hygienist | Wyandotte, MI | 2013 |
| Krista O'Leary, CNM | 1225084726 | Advanced Practice Midwife | Greeley, CO | 2006 |
| Krista O'Leary | 1922759836 | Physician Assistant | Lindenhurst, NY | 2022 |
| Kristen O'Leary | 1033555172 | Speech-Language Pathologist | Haverford, PA | 2013 |
| Kristen O'Leary, DC | 1033650700 | Student in an Organized Health Care Education/Training Program | Tacoma, WA | 2017 |
| Kristen O'Leary | 1679834493 | Specialist | New Rochelle, NY | 2012 |
| Kristen O'Leary, MA., CF-SLP | 1902386006 | Speech-Language Pathologist | Aurora, IL | 2018 |
| Kristin O'Leary, DPT | 1225347032 | Physical Therapist | Crestview Hills, KY | 2010 |
| Krystin O'Leary, M.A. CCC-SLP | 1356908578 | Speech-Language Pathologist | Louisville, OH | 2019 |
| Lacie O'Leary | 1619800117 | Behavior Technician | Cloquet, MN | 2026 |
| Laura O'Leary, FNP | 1134527831 | Nurse Practitioner | Fairview Heights, IL | 2014 |
| Laura O'Leary, PA | 1629075171 | Medical Physician Assistant | Toledo, OH | 2005 |
| Lauren O'Leary, MS, CCC-SLP | 1255996112 | Speech-Language Pathologist | Philadelphia, PA | 2019 |
| Lauren O'Leary, LPC | 1730414020 | Professional Counselor | Glastonbury, CT | 2009 |
| Lauren O'Leary | 1962398701 | Genetic Counselor (M.S.) | Rochester, MN | 2025 |
| Laurie O'Leary, CRNA | 1619286184 | Certified Registered Nurse Anesthetist | Benson, MN | 2010 |
| Lee Ann O'Leary, LCSW | 1568934479 | Professional Counselor | Bedminster, NJ | 2018 |
| Leeann O'Leary, LISW | 1356472260 | Clinical Social Worker | Bloomville, OH | 2007 |
| Lin O'Leary, M.D. | 1407823990 | Specialist | Olympia, WA | 2006 |
| Linda O'Leary, LISW-S | 1073198123 | Clinical Social Worker | Cleveland, OH | 2021 |
| Lindy O'Leary, MD | 1831247808 | Occupational Medicine Physician | San Diego, CA | 2007 |
| Lori O'Leary, MA, LPC, LCADC | 1669537320 | Addiction (Substance Use Disorder) Counselor | Barrington, NJ | 2006 |
| Lucas O'Leary, LMT | 1669065215 | Massage Therapist | Jupiter, FL | 2021 |
| Lucille O'Leary | 1205470937 | Behavior Technician | Farmington Hills, MI | 2019 |
| Maddison O'Leary, SLP | 1114598703 | Speech-Language Pathologist | Saint Louis, MO | 2021 |
| Madeleine O'Leary, MD | 1467193417 | Student in an Organized Health Care Education/Training Program | Worcester, MA | 2022 |
| Madelyn O'Leary, PA-C | 1093226680 | Physician Assistant | Falls Church, VA | 2017 |
| Madison O'Leary, OTR/L | 1235763566 | Occupational Therapist | Danville, PA | 2020 |
| Marcus O'Leary, MFTI | 1326496050 | Marriage & Family Therapist | Westlake Village, CA | 2016 |
| Margaret O'Leary, L.C.P.C. | 1821202953 | Professional Counselor | Orland Park, IL | 2007 |
| Marianne O'Leary, PH.D. | 1720147374 | Psychologist | Ellicott City, MD | 2006 |
| Marianne O'Leary, CRNA | 1982891594 | Certified Registered Nurse Anesthetist | Camden, NJ | 2007 |
| Marie O'Leary, PT, DPT | 1295235463 | Physical Therapist | Long Beach, CA | 2018 |
| Marina O'Leary, DPT | 1386413144 | Physical Therapist | Grand Forks, ND | 2023 |
| Marissa O'Leary | 1689539223 | Student in an Organized Health Care Education/Training Program | Apex, NC | 2025 |
| Mary O'Leary | 1083205330 | Speech-Language Pathologist | Chicago, IL | 2021 |
| Mary O'Leary, RN | 1194024489 | Registered Nurse | Cincinnati, OH | 2011 |
| Mary O'Leary, CRNA | 1235698929 | Certified Registered Nurse Anesthetist | Oakland, CA | 2019 |
| Mary O'Leary, RN BS | 1306110432 | Registered Nurse | Bellerose, NY | 2012 |
| Mary O'Leary, LCSW | 1598951667 | Social Worker | Jamestown, NY | 2007 |
| Mary O'Leary, PHD | 1629136676 | Psychologist | Bainbridge Island, WA | 2006 |
| Mary O'Leary | 1750134003 | Registered Nurse | Lacey, WA | 2024 |
| Mary Ellen O'Leary, M.A., L.P.C.C. | 1275612822 | Mental Health Counselor | Albuquerque, NM | 2006 |
| Mary Katherine O'Leary, RD | 1841760857 | Registered Dietitian | Hingham, MA | 2018 |
| Matthew O'Leary | 1396511937 | Student in an Organized Health Care Education/Training Program | Seattle, WA | 2023 |
| Matthew O'Leary, MSW | 1790939478 | Clinical Social Worker | San Leandro, CA | 2008 |
| Matthew O'Leary, MD | 1881487825 | Student in an Organized Health Care Education/Training Program | Cincinnati, OH | 2025 |
| Maura O'Leary, CCC-SLP, TSHH | 1952439366 | Speech-Language Pathologist | Center Moriches, NY | 2007 |
| Maureen O'Leary, MA | 1285013946 | Mental Health Counselor | Worcester, MA | 2015 |
| Maureen O'Leary, PHD | 1366539942 | Psychologist | Madison, WI | 2006 |
| Maureen O'Leary, LCSW | 1720428550 | Clinical Social Worker | Nampa, ID | 2013 |
| Maureen O'Leary, PT, DPT | 1891741682 | Physical Therapist | Springfield, PA | 2006 |
| Maureen O'Leary | 1962790865 | Home Health Registered Nurse | Chicago, IL | 2011 |
| McKenna O'Leary | 1053143990 | Mental Health Counselor | Hiawatha, IA | 2024 |
| Meagan O'Leary | 1669758876 | Specialist | Providence, RI | 2011 |
| Meaghan O'Leary, PT, DPT | 1184395840 | Physical Therapist | Lompoc, CA | 2021 |
| Meaghan O'Leary, ATC, BS, MS | 1285456756 | Athletic Trainer | Newburyport, MA | 2024 |
| Meaghan O'Leary, APRN | 1447682257 | Acute Care Nurse Practitioner | Manchester, NH | 2013 |
| Megan O'Leary | 1104510411 | Student in an Organized Health Care Education/Training Program | Ocala, FL | 2023 |
| Megan O'Leary, M.ED., ED.S., LCMHC | 1336814755 | Mental Health Counselor | Charlotte, NC | 2021 |
| Megan O'Leary | 1427710433 | Behavior Technician | Sartell, MN | 2021 |
| Megan O'Leary | 1689248767 | Developmental Therapist | Milford, MA | 2021 |
| Megan O'Leary | 1699443945 | Physician Assistant | Roseville, MN | 2021 |
| Megan O'Leary, DO | 1861244865 | Student in an Organized Health Care Education/Training Program | Denver, CO | 2024 |
| Meghan O'Leary, OT | 1083173918 | Occupational Therapist | Schenectady, NY | 2019 |
| Meghan O'Leary, M.A., B.A. IBCLC | 1821221482 | Mental Health Counselor | Taunton, MA | 2009 |
| Meghann O'Leary | 1467741637 | Case Manager/Care Coordinator | Cincinnati, OH | 2011 |
| Melanie O'Leary, B.S | 1437421971 | Cognitive & Behavioral Psychologist | Worcester, MA | 2012 |
| Melanie O'Leary, MS | 1508881798 | Genetic Counselor (M.S.) | Westborough, MA | 2006 |
| Melanie O'Leary, PT, DPT | 1770720617 | Pediatric Physical Therapist | Port Jefferson, NY | 2009 |
| Melinda O'Leary, MD | 1952380495 | Pediatrics Physician | Columbia, SC | 2006 |
| Micah O'Leary | 1770301491 | Behavior Analyst | Longmont, CO | 2024 |
| Michael O'Leary, SLP | 1003241605 | Speech-Language Pathologist | Pittsburgh, PA | 2013 |
| Michael O'Leary, CPHT | 1023817798 | Pharmacy Technician | Cincinnati, OH | 2025 |
| Michael O'Leary, PA-C | 1083918189 | Physician Assistant | Pensacola, FL | 2011 |
| Michael O'Leary, D.D.S. | 1215033568 | Dentist | Lakewood, OH | 2006 |
| Michael O'Leary, PT, DPT | 1285511758 | Physical Therapist | Brooklyn, NY | 2025 |
| Michael O'Leary, MD | 1306200274 | Orthopaedic Surgery Physician | Amherst, NY | 2016 |
| Michael O'Leary, M.D. | 1417986613 | Otology & Neurotology Physician | San Diego, CA | 2006 |
| Michael O'Leary, RPH | 1689131211 | Pharmacist | Sparks, NV | 2019 |
| Michael O'Leary, M.D. | 1689682924 | Anatomic Pathology & Clinical Pathology Physician | Syracuse, NY | 2006 |
| Michael O'Leary | 1770973265 | Health Educator | Colleyville, TX | 2015 |
| Michael O'Leary, MD | 1811244312 | Surgical Oncology Physician | Loma Linda, CA | 2012 |
| Michael O'Leary, D.C., C.C.S. P. | 1811923683 | Chiropractor | Queensbury, NY | 2006 |
| Michael O'Leary, DDS | 1831217645 | Orthodontics and Dentofacial Orthopedics Dentistry | Wisconsin Rapids, WI | 2007 |
| Michael O'Leary, PT, DPT | 1942035829 | Physical Therapist | Stoughton, MA | 2024 |
| Michael O'Leary, IMFT | 1952636193 | Marriage & Family Therapist | Dublin, OH | 2009 |
| Michele O'Leary, LCSW | 1447457601 | Clinical Social Worker | Downey, CA | 2007 |
| Michelle O'Leary, MD | 1285890863 | Anatomic Pathology & Clinical Pathology Physician | Joliet, IL | 2008 |
| Michelle O'Leary | 1851759765 | Social Worker | Woodstock, IL | 2016 |
| Minna O'Leary, M.D. | 1871560623 | Psychiatry Physician | Peoria, IL | 2006 |
| Miranda O'Leary, NNP | 1386451615 | Critical Care Neonatal Nurse Practitioner | Norfolk, VA | 2024 |
| Miriam O'Leary, M.D. | 1871752444 | Otolaryngology Physician | Boston, MA | 2008 |
| Misty O'Leary, P.T.A. | 1861658270 | Physical Therapy Assistant | Painesville, OH | 2008 |
| Mitchell O'Leary | 1942905864 | Student in an Organized Health Care Education/Training Program | Orange, CA | 2023 |
| Mollie O'Leary | 1568034270 | Registered Nurse | Tyler, TX | 2021 |
| Molly O'Leary | 1023590122 | Clinical Social Worker | New Bedford, MA | 2018 |
| Molly O'Leary, D.C. | 1073765541 | Chiropractor | Kansas City, MO | 2008 |
| Molly O'Leary, LPC | 1154898260 | Mental Health Counselor | Saint Louis, MO | 2018 |
| Morgan O'Leary, RD | 1487484788 | Pediatric Nutrition Registered Dietitian | Charlottesville, VA | 2024 |
| Moya O'Leary | 1245757566 | Professional Counselor | Waterbury, CT | 2017 |
| Natalie O'Leary, APN | 1841989704 | Family Nurse Practitioner | Hackensack, NJ | 2023 |
| Nathaniel O'Leary, MD | 1336726108 | Family Medicine Physician | Washington, PA | 2021 |
| Nicholle O'Leary, LPC | 1437576485 | Professional Counselor | Wilkinsburg, PA | 2014 |
| Nicole O'Leary, RD LD | 1811972102 | Registered Dietitian | Iowa City, IA | 2005 |
| Nicole O'Leary, LSW | 1922875053 | Social Worker | West Chester, PA | 2023 |
| Nikki O'Leary, OTR/L CLT | 1609216126 | Occupational Therapist | Boise, ID | 2013 |
| Noah O'Leary | 1194314229 | Clinical Social Worker | Burlington, VT | 2021 |
| Nora O'Leary | 1851946198 | Speech-Language Pathologist | Crystal Lake, IL | 2019 |
| Pamela O'Leary | 1508907916 | Speech-Language Pathologist | Kings Park, NY | 2007 |
| Patricia O'Leary, APN | 1376691675 | Adult Psychiatric/Mental Health Clinical Nurse Specialist | Arlington Heights, IL | 2007 |
| Patricia O'Leary, MD | 1629036983 | Obstetrics & Gynecology Physician | Glenview, IL | 2006 |
| Patricia O'Leary, MHC-LP | 1659030286 | Mental Health Counselor | New York, NY | 2021 |
| Patrick O'Leary, D.C. | 1093816712 | Chiropractor | Benson, MN | 2006 |
| Patrick O'Leary, D.O. | 1164818084 | General Practice Physician | Mansfield, OH | 2015 |
| Patrick O'Leary, M.D. | 1194774547 | Surgery Physician | Hillsboro, OR | 2006 |
| Patrick O'Leary | 1396546735 | Student in an Organized Health Care Education/Training Program | Inverness, FL | 2025 |
| Patrick O'Leary, M.D. | 1477640340 | Orthopaedic Surgery of the Spine Physician | New York, NY | 2006 |
| Patrick O'Leary | 1659761823 | Behavior Analyst | Miami, FL | 2015 |
| Patrick O'Leary | 1750760617 | Speech-Language Pathologist | Puyallup, WA | 2015 |
| Patrick O'Leary, MD | 1841314556 | Orthopaedic Surgery of the Spine Physician | Peoria, IL | 2007 |
| Patrick O'Leary, M.D. | 1881672632 | Pediatric Cardiology Physician | Rochester, MN | 2006 |
| Patrick O'Leary, MD | 1942278890 | Cardiovascular Disease Physician | Winfield, IL | 2006 |
| Paul O'Leary, DC | 1326340167 | Rehabilitation Chiropractor | Palm Beach Gardens, FL | 2010 |
| Paul O'Leary, CRNA | 1518398171 | Certified Registered Nurse Anesthetist | Miami, FL | 2013 |
| Paul O'Leary, M.D. | 1881914158 | Internal Medicine Physician | Porter, TX | 2010 |
| Paula O'Leary, MA | 1235428996 | Counselor | Racine, WI | 2011 |
| Paulette O'Leary, LPN | 1841438678 | Licensed Practical Nurse | Duluth, MN | 2009 |
| Peter O'Leary | 1326849183 | Mental Health Counselor | South Burlington, VT | 2025 |
| Quinn O'Leary, CNM | 1477261345 | Midwife | Hartford, CT | 2022 |
| Rachel O'Leary, PHARM.D. | 1225406507 | Pharmacist | Bartlett, TN | 2015 |
| Rae O'Leary, RRT | 1952501074 | Registered Respiratory Therapist | Timber Lake, SD | 2007 |
| Raleigh O'Leary, IDMT | 1972213320 | Independent Duty Medical Technicians | Moody Afb, GA | 2022 |
| Regina O'Leary, CRNP | 1114064128 | Neonatal Nurse Practitioner | Boardman, OH | 2007 |
| Richard O'Leary, MS, ATC | 1093842585 | Athletic Trainer | Seattle, WA | 2007 |
| Richard O'Leary, MD | 1275585937 | Anesthesiology Physician | San Diego, CA | 2006 |
| Richard O'Leary, ED. D. | 1891846846 | Psychologist | Corning, NY | 2007 |
| River O'Leary, LSW | 1669258208 | Social Worker | Savoy, IL | 2023 |
| Robert O'Leary, M.D. | 1093801474 | Anesthesiology Physician | Hauppauge, NY | 2006 |
| Robert O'Leary, DO | 1275590390 | Pain Medicine (Physical Medicine & Rehabilitation) Physician | Estero, FL | 2006 |
| Robert O'Leary | 1275927766 | Adult Reconstructive Orthopaedic Surgery Physician | Albany, NY | 2015 |
| Robert O'Leary, D.P.M. | 1801883806 | Foot Surgery Podiatrist | Weymouth, MA | 2005 |
| Roland O'Leary, MD | 1336170828 | Emergency Medicine Physician | Sneedville, TN | 2006 |
| Ronan O'Leary, MBCHB | 1548536758 | Family Medicine Physician | Olean, NY | 2012 |
| Rosanne O'Leary | 1629488655 | Physical Therapist | Dublin, CA | 2014 |
| Rosemary O'Leary | 1770959181 | Marriage & Family Therapist | Fairfield, CA | 2015 |
| Russell O'Leary, LCSW | 1962883546 | Clinical Social Worker | Nampa, ID | 2015 |
| Rusty O'Leary | 1215155973 | Professional Counselor | Nampa, ID | 2007 |
| Ruth O'Leary, LPC-A | 1710701602 | Mental Health Counselor | Arlington, TX | 2024 |
| Ryan O'Leary, MD | 1053848978 | Orthopaedic Surgery Physician | San Diego, CA | 2017 |
| Ryan O'Leary, M.D. | 1447679766 | Dermatology Physician | Aurora, CO | 2014 |
| Ryan O'Leary, M.D. | 1568548154 | Pediatrics Physician | Charlotte, NC | 2006 |
| Ryan O'Leary, MD | 1639809833 | Internal Medicine Physician | Charleston, SC | 2022 |
| Ryan O'Leary | 1699427823 | Counselor | Glen Burnie, MD | 2022 |
| S. Lily O'Leary, LMT | 1679580054 | Specialist | Santa Fe, NM | 2006 |
| Samantha O'Leary | 1083559819 | Registered Nurse | St Petersburg, FL | 2026 |
| Samantha O'Leary, AUD. | 1396032496 | Audiologist | Nashville, TN | 2011 |
| Samuel O'Leary | 1689089633 | Athletic Trainer | Puyallup, WA | 2014 |
| Sandra O'Leary, R.N. P.H.N. | 1932392362 | Community Health Registered Nurse | Santa Cruz, CA | 2007 |
| Sara O'Leary, RD | 1952845547 | Registered Dietitian | Clackamas, OR | 2016 |
| Sarah O'Leary, BA, RDH | 1053191494 | Dental Hygienist | New York, NY | 2023 |
| Sarah O'Leary, M.S.ED. | 1063774594 | Specialist | Staten Island, NY | 2012 |
| Sarah O'Leary, RN, MSN | 1205227980 | Registered Nurse | San Francisco, CA | 2015 |
| Sarah O'Leary | 1306198882 | Behavior Analyst | Watertown, MA | 2012 |
| Sarah O'Leary, PT DPT | 1386127496 | Physical Therapist | Fort Myers, FL | 2018 |
| Sarah O'Leary | 1386561223 | Adult Companion | Omaha, NE | 2026 |
| Sarah O'Leary, FNP | 1396393203 | Family Nurse Practitioner | Slingerlands, NY | 2019 |
| Sarah O'Leary | 1538754882 | Marriage & Family Therapist | San Diego, CA | 2021 |
| Sarah O'Leary | 1629649223 | Certified Registered Nurse Anesthetist | Erie, PA | 2021 |
| Sarah O'Leary, MD | 1689932527 | Internal Medicine Physician | Lexington, KY | 2012 |
| Sarah O'Leary | 1831702596 | Occupational Therapist | Waltham, MA | 2020 |
| Sarah O'Leary, DNP | 1871086900 | Certified Registered Nurse Anesthetist | Chesterfield, MO | 2018 |
| Scott O'Leary, M.S., CCC-A | 1003995481 | Audiologist | Fort Worth, TX | 2006 |
| Scott O'Leary, LCSW | 1821374240 | School Counselor | Castleton On Hudson, NY | 2011 |
| Sean O'Leary, MD | 1134196538 | Pediatric Infectious Diseases Physician | Aurora, CO | 2006 |
| Sean O'Leary, MD | 1144018953 | Student in an Organized Health Care Education/Training Program | Greenville, NC | 2025 |
| Sean O'Leary, BA | 1568945756 | Counselor | Hudson, NH | 2018 |
| Sean O'Leary, MD | 1649777582 | Emergency Medicine Physician | Columbus, OH | 2018 |
| Sean O'Leary, MD | 1700718327 | Student in an Organized Health Care Education/Training Program | Philadelphia, PA | 2026 |
| Sean O'Leary, MD | 1720616881 | Physical Medicine & Rehabilitation Physician | Pensacola, FL | 2020 |
| Shane O'Leary, LICSW | 1588510804 | School Social Worker | Minneapolis, MN | 2026 |
| Shannon O'Leary | 1336027994 | Physical Medicine & Rehabilitation Physician | Basking Ridge, NJ | 2025 |
| Shannon O'Leary, OTD, OTR/L | 1538992276 | Occupational Therapist | Pittsburgh, PA | 2024 |
| Shannon O'Leary | 1609327642 | Clinical Social Worker | Salem, MA | 2016 |
| Shannon O'Leary, PHARMD | 1699440537 | Pharmacist | Coralville, IA | 2021 |
| Shannon O'Leary, MT-BC | 1922478106 | Music Therapist | Rochester, NY | 2015 |
| Shannon O'Leary, PHARMD | 1942811658 | Pharmacist | Roseburg, OR | 2020 |
| Shari O'Leary, FNP-C | 1134590623 | Family Nurse Practitioner | Framingham, MA | 2015 |
| Sharon O'Leary, M.D. | 1073526976 | Obstetrics & Gynecology Physician | Ypsilanti, MI | 2006 |
| Shaun O'Leary, MD, PHD | 1841256377 | Neurological Surgery Physician | Pleasant Prairie, WI | 2006 |
| Shauna O'Leary, NP | 1326308354 | Nurse Practitioner | Palo Alto, CA | 2012 |
| Shay O'Leary | 1407421589 | Behavior Analyst | New Windsor, NY | 2021 |
| Sheila O'Leary, ARNP | 1194953943 | Family Nurse Practitioner | Bremerton, WA | 2009 |
| Sheilah O'Leary, CRPA-P | 1063394740 | Peer Specialist | Mount Kisco, NY | 2025 |
| Sheri O'Leary, PA-C, MPAS | 1003937160 | Medical Physician Assistant | Houston, TX | 2007 |
| Sherry O'Leary | 1770304776 | Behavior Technician | Farmington Hills, MI | 2024 |
| Sherry O'Leary, RN | 1992380752 | Registered Nurse | Parker, AZ | 2021 |
| Shirley O'Leary, NP-C | 1235442187 | Adult Health Nurse Practitioner | Dallas, TX | 2010 |
| Sidneigh O'Leary | 1669294682 | Registered Dietitian | Des Moines, IA | 2024 |
| Sirima O'Leary, PA-C | 1871244988 | Medical Physician Assistant | Waipahu, HI | 2022 |
| Sofia O'Leary | 1467059584 | Behavior Analyst | Jensen Beach, FL | 2020 |
| Sonja O'Leary, MD | 1235115841 | Pediatrics Physician | Denver, CO | 2005 |
| Stacy O'Leary, MA, LMFT | 1437415114 | Marriage & Family Therapist | Mountain View, CA | 2012 |
| Stella O'Leary, RPH | 1518243591 | Pharmacist | Branford, CT | 2011 |
| Stephanie O'Leary, MS OTR/L | 1093990418 | Occupational Therapist | Tucson, AZ | 2008 |
| Stephanie O'Leary, PSY.D. | 1295897270 | Clinical Psychologist | Mount Kisco, NY | 2006 |
| Stephanie O'Leary, M.S. C.C.C.-SLP | 1841755246 | Speech-Language Pathologist | Richmond, VT | 2019 |
| Steven O'Leary | 1073435574 | Behavior Technician | Mankato, MN | 2026 |
| Steven O'Leary, RN | 1184878712 | Registered Nurse | Pine Ridge, SD | 2008 |
| Susan O'Leary, MA, LPC | 1154880912 | Mental Health Counselor | Colorado Springs, CO | 2019 |
| Susan O'Leary | 1265322788 | Personal Care Attendant | Scottsbluff, NE | 2025 |
| Susan O'Leary, MD | 1760697940 | Cardiovascular Disease Physician | Carson City, NV | 2007 |
| Susan O'Leary, RDH | 1902314743 | Dental Hygienist | Warrensburg, NY | 2018 |
| Susanne O'Leary, M.S. | 1366967473 | Professional Counselor | San Leandro, CA | 2017 |
| Suzanne O'Leary, CRNP | 1699147512 | Nurse Practitioner | Media, PA | 2015 |
| Tanya O'Leary | 1043823560 | Addiction (Substance Use Disorder) Counselor | Pipestone, MN | 2020 |
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).