Providers Christopher Brennan, OD to Jeanne Brennan, D.C.
300 individual NPIs in the federal registry, part 2,538 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. 88 link to a page of their own with Medicare and CMS data the registry does not carry.
| Provider | NPI | Specialty | Practice city | NPI issued |
|---|---|---|---|---|
| Christopher Brennan, OD | 1801806625 | Optometrist | Philadelphia, PA | 2006 |
| Christopher Brennan, MD, PHD | 1982749644 | Diagnostic Radiology Physician | Burlington, VT | 2007 |
| Ciara Brennan | 1427600204 | Internal Medicine Physician | Grand Rapids, MI | 2019 |
| Ciara Brennan | 1629852603 | Medical Physician Assistant | Farmington Hills, MI | 2023 |
| Ciera Brennan | 1508685306 | Contractor | Commack, NY | 2024 |
| Claire Brennan, LCSW | 1154600666 | Clinical Social Worker | Newton, MA | 2011 |
| Claire Brennan, CPNP | 1437987179 | Critical Care Pediatric Nurse Practitioner | Aurora, CO | 2024 |
| Clare Brennan, PT | 1619980349 | Physical Therapist | Durham, NC | 2006 |
| Cole Brennan, MSW, LSW | 1437869393 | Clinical Social Worker | Lakewood, CO | 2022 |
| Cole Brennan | 1942837000 | Dentist | Beale Afb, CA | 2020 |
| Colin Brennan | 1427803139 | Student in an Organized Health Care Education/Training Program | Newark, NJ | 2024 |
| Colleen Brennan | 1013410828 | Specialist | Pleasantville, NY | 2018 |
| Colleen Brennan, M.S.CCC-SLP | 1164667093 | Speech-Language Pathologist | Chicago, IL | 2008 |
| Colleen Brennan, R.N. | 1326206491 | Registered Nurse | Massapequa, NY | 2008 |
| Colleen Brennan, RPH | 1801186465 | Pharmacist | Pottsville, PA | 2011 |
| Colleen Brennan | 1801427042 | Orthopedic Physical Therapist | San Diego, CA | 2020 |
| Colleen Brennan, M.A., CCC-SLP | 1881022382 | Speech-Language Pathologist | Lawrenceville, GA | 2013 |
| Colleen Brennan, MD | 1912294000 | Neonatal-Perinatal Medicine Physician | Saint Louis, MO | 2011 |
| Colm Brennan, LCSW | 1710509906 | Clinical Social Worker | South Portland, ME | 2020 |
| Connie Brennan, APRN, AGNP-BC, PHN | 1447994736 | Gerontology Nurse Practitioner | St Louis Park, MN | 2022 |
| Connor Brennan | 1619898764 | Mental Health Counselor | Pottstown, PA | 2026 |
| Conor Brennan | 1194503870 | Mental Health Counselor | Paramus, NJ | 2023 |
| Conor Brennan | 1396420790 | Behavior Technician | Monrovia, CA | 2023 |
| Constance Brennan, N.P. | 1811092299 | Nurse Practitioner | Charlottesville, VA | 2006 |
| Corinne Brennan | 1336879659 | Occupational Therapist | New Lenox, IL | 2022 |
| Courtney Brennan, NP | 1033666573 | Nurse Practitioner | Shrewsbury, NJ | 2016 |
| Courtney Brennan, DMD | 1154161867 | General Practice Dentistry | Louisville, KY | 2024 |
| Courtney Brennan, LCSW | 1215239041 | Clinical Social Worker | Pendleton, OR | 2010 |
| Courtney Brennan | 1306504287 | Speech-Language Pathologist | Flourtown, PA | 2021 |
| Courtney Brennan | 1528435245 | Pharmacist | Jacksonville, FL | 2015 |
| Courtney Brennan | 1558077909 | Occupational Therapist | Sewickley, PA | 2023 |
| Courtney Brennan, PT, DPT | 1841178696 | Physical Therapist | Houston, TX | 2025 |
| Courtney Brennan, M.D. | 1851787584 | Pediatrics Physician | Los Angeles, CA | 2015 |
| Craig Brennan, LSW | 1427314954 | Social Worker | Altoona, PA | 2012 |
| Craig Brennan | 1568116382 | Social Worker | Bay Shore, NY | 2022 |
| Crista Brennan | 1962799536 | Counselor | Medford, OR | 2011 |
| Crystal Brennan, LMHC | 1790938165 | Mental Health Counselor | Salem, MA | 2008 |
| Curtis Brennan, DC | 1376667394 | Chiropractor | Lees Summit, MO | 2007 |
| Cynthia Brennan, M.D. | 1013910264 | Family Medicine Physician | Oklahoma City, OK | 2005 |
| Cynthia Brennan, PHARMD, MHA | 1437125333 | Pharmacist | Seattle, WA | 2006 |
| Cynthia Brennan, PT | 1528045549 | Physical Therapist | Bellevue, WA | 2005 |
| Cynthia Brennan, LCPC | 1609186345 | Mental Health Counselor | Ottawa, KS | 2010 |
| Dan Brennan | 1972030344 | Athletic Trainer | Saint Charles, MO | 2017 |
| Dana Brennan, LCSW | 1083016067 | Clinical Social Worker | Dover, DE | 2014 |
| Dana Brennan, RD, LDN | 1497970099 | Registered Dietitian | Boston, MA | 2007 |
| Dane Brennan | 1023759115 | Technician/Technologist | Lansing, MI | 2022 |
| Danial Brennan, D.C. | 1891112918 | Chiropractor | Tukwila, WA | 2014 |
| Daniel Brennan, MD | 1023036597 | Nephrology Physician | Baltimore, MD | 2006 |
| Daniel Brennan, CRNA | 1023096146 | Certified Registered Nurse Anesthetist | Charlotte, NC | 2006 |
| Daniel Brennan, M.D. | 1184985129 | Family Medicine Physician | Charlottesville, VA | 2012 |
| Daniel Brennan, DMD | 1265449011 | General Practice Dentistry | Lowell, MA | 2006 |
| Daniel Brennan, MD | 1437259058 | Emergency Medicine Physician | Orlando, FL | 2006 |
| Daniel Brennan, DMD | 1528403177 | General Practice Dentistry | Waterbury, CT | 2013 |
| Daniel Brennan, OD | 1770006736 | Optometrist | Chicago, IL | 2017 |
| Daniel Brennan, M.D. | 1770698144 | Pediatrics Physician | Santa Barbara, CA | 2006 |
| Daniel Brennan, CSW | 1811317969 | Clinical Social Worker | Lindon, UT | 2014 |
| Daniel Brennan, PA | 1851808620 | Physician Assistant | Grand Rapids, MI | 2018 |
| Daniel Brennan, DPT | 1881471548 | Physical Therapist | Armonk, NY | 2023 |
| Daniel Brennan, DMD | 1932293172 | General Practice Dentistry | Palm Beach Gardens, FL | 2006 |
| Danielle Brennan, COUNSELOR | 1336820786 | Community Health Worker | Cincinnati, OH | 2023 |
| Danielle Brennan | 1467843243 | Speech-Language Pathologist | Cape Coral, FL | 2015 |
| Danielle Brennan | 1558841791 | Speech-Language Pathologist | Centereach, NY | 2018 |
| Danielle Brennan | 1629951066 | Behavior Technician | Las Vegas, NV | 2025 |
| Danielle Brennan, LCSW, MSW | 1932350188 | Clinical Social Worker | Devon, PA | 2008 |
| Dannica Brennan | 1780175026 | Student in an Organized Health Care Education/Training Program | Las Vegas, NV | 2018 |
| Darcy Brennan | 1750967907 | Speech-Language Pathologist | Washington, DC | 2021 |
| Darlene Brennan, LCSW | 1598227217 | Clinical Social Worker | New York, NY | 2019 |
| Darren Brennan, M.D. | 1710904172 | Diagnostic Radiology Physician | Marlborough, MA | 2006 |
| Darren Brennan, PSYD | 1770666000 | Clinical Psychologist | Reston, VA | 2006 |
| David Brennan, DO | 1013414952 | Emergency Medicine Physician | Oklahoma City, OK | 2018 |
| David Brennan, FNP-C | 1174205264 | Family Nurse Practitioner | Mesa, AZ | 2023 |
| David Brennan, DVM | 1235470915 | Veterinarian | Ashland, OH | 2013 |
| David Brennan, DPT | 1245887108 | Physical Therapist | North Syracuse, NY | 2019 |
| David Brennan, D.O. | 1306887906 | Family Medicine Physician | Clinton, IA | 2006 |
| David Brennan, MSW, LICSW | 1750473369 | Clinical Social Worker | Boston, MA | 2006 |
| David Brennan, M.D. | 1982083184 | Internal Medicine Physician | Rochester, MN | 2015 |
| Dawn Brennan, N.P. | 1003914722 | Pediatric Nurse Practitioner | Rochester, NY | 2006 |
| Dawn Brennan, LCPC | 1548372279 | Professional Counselor | Whitefish, MT | 2006 |
| Deanna Brennan | 1841089463 | Gerontology Nurse Practitioner | Toms River, NJ | 2025 |
| Deanna Brennan, P.T. | 1871790493 | Physical Therapist | Canton, OH | 2007 |
| Deborah Brennan | 1508080565 | Occupational Therapist | Willow Street, PA | 2007 |
| Deborah Brennan, D.M.D. | 1558563940 | General Practice Dentistry | Newtown Square, PA | 2007 |
| Debra Brennan | 1538709217 | Addiction (Substance Use Disorder) Counselor | Riverside, CA | 2020 |
| Debra Brennan, MFT MARRIAGE & FAMIL | 1790865525 | Marriage & Family Therapist | Santa Rosa, CA | 2006 |
| Denise Brennan | 1154646941 | Professional Counselor | Festus, MO | 2010 |
| Denise Brennan, LCSW | 1548961048 | Clinical Social Worker | Cottonwood, AZ | 2023 |
| Denise Brennan, RN | 1912204579 | Emergency Registered Nurse | Providence, RI | 2011 |
| Dennis Brennan, OTR | 1770751075 | Occupational Therapist | Cincinnati, OH | 2008 |
| Dennis Brennan, D.O. | 1932313343 | Emergency Medicine Physician | Acoma, NM | 2007 |
| Dennis Brennan, PA-C | 1962577866 | Medical Physician Assistant | Rising Star, TX | 2006 |
| Derrick Brennan | 1376229724 | Licensed Practical Nurse | Charleston, WV | 2023 |
| Destiny Brennan, RD, RN | 1124916135 | Registered Dietitian | Prescott, AZ | 2025 |
| Destiny Brennan, MPT | 1518310515 | Physical Therapist | Chamberlain, SD | 2016 |
| Devan Brennan, CCC-SLP | 1669140802 | Speech-Language Pathologist | Staten Island, NY | 2021 |
| Devrie Brennan, M.S.P.T. | 1740322064 | Physical Therapist | San Francisco, CA | 2007 |
| Diana Brennan, RN, BSN | 1710610217 | Psychiatric/Mental Health Registered Nurse | Quincy, MA | 2022 |
| Diane Brennan, P.T.,S.C.S. | 1184711970 | Physical Therapist | Depew, NY | 2006 |
| Diane Brennan, B.A., C .M.T., | 1245496199 | Community Health Worker | Berthoud, CO | 2008 |
| Diane Brennan, APRN | 1689605289 | Family Nurse Practitioner | Norfolk, NE | 2006 |
| Diane Brennan, PSYD | 1861547820 | School Psychologist | Mesa, AZ | 2007 |
| Dianne Brennan, P.T. | 1457530214 | Physical Therapist | Orlando, FL | 2007 |
| Dolores Brennan | 1063248011 | Electroneurodiagnostic Specialist/Technologist | Tinton Falls, NJ | 2024 |
| Donald Brennan | 1245319532 | Chiropractor | Dunlap, TN | 2006 |
| Donald Brennan, MD | 1952239964 | Student in an Organized Health Care Education/Training Program | Gainesville, FL | 2026 |
| Donna Brennan, CNP | 1285993618 | Nurse Practitioner | Ann Arbor, MI | 2012 |
| Donna Brennan, LICSW | 1922144880 | Clinical Social Worker | Taunton, MA | 2007 |
| Donna Brennan, PH.D. | 1942568456 | School Psychologist | Port Jefferson Station, NY | 2012 |
| Douglas Brennan, MD | 1932580636 | Psychiatry Physician | Boston, MA | 2015 |
| Drew Brennan | 1386514578 | Mental Health Counselor | Phillipsburg, NJ | 2025 |
| Dwan Brennan, MFT | 1285801332 | Marriage & Family Therapist | Danville, CA | 2008 |
| Dylan Brennan | 1760241137 | Case Manager/Care Coordinator | Muskogee, OK | 2024 |
| Edmund Brennan, MD | 1003812660 | Clinical Cardiac Electrophysiology Physician | Great Falls, MT | 2005 |
| Edward Brennan, D.D.S. | 1306865076 | General Practice Dentistry | Homer Glen, IL | 2006 |
| Edward Brennan, DO | 1316117815 | Family Medicine Physician | Grafton, WV | 2008 |
| Edward Brennan, MD | 1396237707 | Surgery Physician | Newtown Square, PA | 2018 |
| Edward Brennan, D.O. | 1831192004 | Cardiovascular Disease Physician | Camp Hill, PA | 2005 |
| Edward Brennan, IDC | 1952173155 | Independent Duty Corpsman | Camp Lejeune, NC | 2023 |
| Edwin Brennan, PHD, LP | 1295196152 | Health Service Psychologist | Leesville, LA | 2016 |
| Eileen Brennan, PH.D | 1326135674 | Specialist | Brooklyn, NY | 2006 |
| Eileen Brennan, PT | 1689935710 | Physical Therapist | Helena, MT | 2012 |
| Eileen Brennan | 1750103081 | Clinical Social Worker | Cambridge, MA | 2024 |
| Eileen Brennan, MS, CCC-SLP | 1932438355 | Speech-Language Pathologist | Huguenot, NY | 2009 |
| Elaine Brennan | 1194287193 | Behavior Technician | Chester, MD | 2019 |
| Elena Brennan | 1366120040 | Behavior Technician | Okemos, MI | 2023 |
| Eli Brennan, MD | 1598604381 | Student in an Organized Health Care Education/Training Program | Burlington, VT | 2026 |
| Elizabeth Brennan, LMSW, D-PC | 1033515309 | Clinical Social Worker | Centreville, MI | 2014 |
| Elizabeth Brennan, PMHNP | 1053134908 | Psychiatric/Mental Health Nurse Practitioner | Plymouth, MN | 2024 |
| Elizabeth Brennan, NNP-BC | 1093022246 | Critical Care Neonatal Nurse Practitioner | Saint Louis, MO | 2010 |
| Elizabeth Brennan, M.D. | 1144278359 | Physical Medicine & Rehabilitation Physician | Fairfield, CT | 2006 |
| Elizabeth Brennan, APRN | 1154079101 | Nurse Practitioner | Saint Paul, MN | 2022 |
| Elizabeth Brennan | 1184037335 | Registered Nurse | Fort Dodge, IA | 2014 |
| Elizabeth Brennan, LCSW | 1225570260 | Social Worker | Aurora, IL | 2016 |
| Elizabeth Brennan, PT, DPT | 1285243709 | Physical Therapist | Kansas City, MO | 2020 |
| Elizabeth Brennan, LCSW | 1346254711 | Clinical Social Worker | West Haven, CT | 2006 |
| Elizabeth Brennan, SLP | 1427649532 | Speech-Language Pathologist | Park Ridge, IL | 2021 |
| Elizabeth Brennan, M.A., BCBA | 1437393246 | Counselor | Framingham, MA | 2009 |
| Elizabeth Brennan, PT | 1649001462 | Physical Therapist | Nags Head, NC | 2024 |
| Elizabeth Brennan, P.A. | 1710904727 | Physician Assistant | Savannah, GA | 2006 |
| Elizabeth Brennan, M.D. | 1720101397 | Pediatrics Physician | St Petersburg, FL | 2007 |
| Elizabeth Brennan, CCC-SLP | 1922577873 | Speech-Language Pathologist | Hagerstown, MD | 2018 |
| Elizabeth Brennan, M.D. | 1982794855 | Internal Medicine Physician | Santa Cruz, CA | 2006 |
| Ellaine Brennan | 1649027541 | Behavior Technician | Irvine, CA | 2024 |
| Elle Brennan, PHD | 1861064354 | Clinical Child & Adolescent Psychologist | Akron, OH | 2021 |
| Ellen Brennan, FNP | 1376618702 | Family Nurse Practitioner | Oakland, CA | 2006 |
| Ellen Brennan, NP | 1821729039 | Adult Health Nurse Practitioner | Wilmington, DE | 2022 |
| Ellie Brennan, MS, RDN, LN | 1407654924 | Registered Dietitian | Bozeman, MT | 2025 |
| Elsabet Brennan | 1740651082 | Community Health Worker | San Francisco, CA | 2015 |
| Emilie Brennan, PA-C | 1285067660 | Physician Assistant | Lindenhurst, IL | 2013 |
| Emily Brennan, RDH | 1124836473 | Dental Hygienist | California, MD | 2024 |
| Emily Brennan | 1144954637 | Mental Health Counselor | La Grange, IL | 2022 |
| Emily Brennan | 1205547866 | Clinical Social Worker | East Brunswick, NJ | 2022 |
| Emily Brennan | 1235613910 | Speech-Language Pathologist | Saint Louis, MO | 2018 |
| Emily Brennan, RN | 1245053727 | Registered Nurse | Baltimore, MD | 2024 |
| Emily Brennan | 1265080758 | Pharmacist | Warrenton, OR | 2019 |
| Emily Brennan | 1295564417 | Behavior Technician | Budd Lake, NJ | 2024 |
| Emily Brennan, APRN-CNP | 1306679360 | Family Nurse Practitioner | Oklahoma City, OK | 2024 |
| Emily Brennan, MSN, CPNP | 1346905445 | Pediatric Nurse Practitioner | Boston, MA | 2021 |
| Emily Brennan, APRN-FNP | 1407458250 | Family Nurse Practitioner | Scarborough, ME | 2020 |
| Emily Brennan, MS, LLP | 1649845843 | Clinical Psychologist | Saline, MI | 2021 |
| Emily Brennan, PA | 1801310495 | Physician Assistant | Fort Worth, TX | 2017 |
| Emily Brennan, LPC | 1871246967 | Mental Health Counselor | Hillsboro, MO | 2022 |
| Emily Brennan | 1881444321 | Student in an Organized Health Care Education/Training Program | Brooklyn, NY | 2024 |
| Emily Brennan | 1881463735 | Physician Assistant | Pittsburgh, PA | 2023 |
| Emily Brennan | 1982852109 | Social Worker | Long Beach, CA | 2008 |
| Emma Brennan, OTR | 1518659424 | Occupational Therapist | Evergreen Park, IL | 2023 |
| Emmarose Brennan, MD | 1760128334 | Psychiatry Physician | New York, NY | 2022 |
| Emmett Brennan, BMBS, MRCPI | 1265106793 | Student in an Organized Health Care Education/Training Program | Brooklyn, NY | 2021 |
| Erik Brennan, LMT | 1396285144 | Massage Therapist | Portland, OR | 2017 |
| Erika Brennan | 1063095453 | Professional Counselor | Dickinson, ND | 2021 |
| Erin Brennan | 1043843949 | Occupational Therapist | Altoona, PA | 2020 |
| Erin Brennan | 1083566970 | Clinical Social Worker | West Hartford, CT | 2026 |
| Erin Brennan, M.D. | 1104103977 | Emergency Medicine Physician | Detroit, MI | 2011 |
| Erin Brennan, PSYD | 1326357963 | Psychologist | Burnsville, MN | 2010 |
| Erin Brennan, MS, RDN, LDN | 1386378511 | Registered Dietitian | Washington, DC | 2022 |
| Erin Brennan, CPRP | 1407110380 | Counselor | Burnsville, MN | 2012 |
| Erin Brennan, PHARMD | 1558722868 | Pharmacist | Chambersburg, PA | 2016 |
| Erin Brennan | 1558929422 | Physical Therapy Assistant | Edgewater, MD | 2019 |
| Erin Brennan, A.T.,C | 1629191606 | Athletic Trainer | Walla Walla, WA | 2007 |
| Erin Brennan, CRNP-PMH | 1710659131 | Psychiatric/Mental Health Nurse Practitioner | Baltimore, MD | 2021 |
| Erin Brennan | 1750226890 | Behavior Technician | Santa Ana, CA | 2026 |
| Esther Brennan, MD | 1437421856 | Obstetrics & Gynecology Physician | Brick, NJ | 2012 |
| Esther Brennan, LBS | 1811816317 | Behavior Analyst | Williamsport, PA | 2026 |
| Ethan Brennan | 1245025741 | Behavior Technician | Orange, CA | 2025 |
| Eva Brennan, PA-C | 1821760455 | Surgical Physician Assistant | Bradenton, FL | 2021 |
| Evan Brennan | 1447970033 | Counselor | Seattle, WA | 2022 |
| Ewa Brennan, R.N.,M.S.N.,A.N.P.,C | 1780847731 | Family Nurse Practitioner | Greensboro, NC | 2008 |
| Faith Brennan, OTR | 1013153204 | Pediatric Occupational Therapist | New City, NY | 2008 |
| Fallyn Brennan | 1134976111 | Driving and Community Mobility Occupational Therapist | Clinton, NY | 2024 |
| Faythe Brennan | 1053292649 | Mental Health Counselor | Shorewood, WI | 2025 |
| Felicia Brennan, OTR/L | 1679719702 | Pediatric Occupational Therapist | Clinton, NY | 2008 |
| Felicity Brennan | 1700753779 | Behavior Technician | Farmington Hills, MI | 2025 |
| Frances Brennan, APRN | 1275698755 | Nurse Practitioner | Omaha, NE | 2006 |
| Frances Brennan | 1417550708 | Pharmacist | Williamstown, NJ | 2020 |
| Frances Brennan, M.D. | 1669527974 | Ophthalmology Physician | Pensacola, FL | 2007 |
| Frank Brennan, M.D. | 1659380574 | Vascular & Interventional Radiology Physician | Easton, MD | 2006 |
| Fred Brennan, DO | 1043282767 | Family Medicine Physician | Clearwater, FL | 2006 |
| Gabrielle Brennan | 1740096213 | Behavior Technician | Kalamazoo, MI | 2024 |
| Gabrielle Brennan | 1790455533 | Behavior Technician | Farmington Hills, MI | 2021 |
| Galen Brennan, MD | 1922790583 | Student in an Organized Health Care Education/Training Program | Pittsburgh, PA | 2023 |
| Garrett Brennan, DDS | 1255320784 | Pediatric Dentistry | New London, CT | 2005 |
| Gary Brennan, M.D. | 1194818484 | Diagnostic Radiology Physician | Beachwood, OH | 2006 |
| Gary Brennan, D.D.S. | 1316155641 | General Practice Dentistry | Scottsdale, AZ | 2007 |
| Gary Brennan, LPC, CADC | 1477891745 | Professional Counselor | Randolph, NJ | 2013 |
| George Brennan, MD | 1902883002 | Surgery Physician | Olympia, WA | 2005 |
| Geraldine Brennan, LPC | 1679710826 | Counselor | Pennington, NJ | 2009 |
| Geralyn Brennan, MED. | 1922341742 | Specialist | Long Beach, NY | 2013 |
| Gerard Brennan, PT | 1649328998 | Physical Therapist | South Jordan, UT | 2007 |
| Gillian Brennan | 1174782437 | Neonatal-Perinatal Medicine Physician | Chicago, IL | 2008 |
| Gillian Brennan, PA | 1639210750 | Medical Physician Assistant | Syosset, NY | 2007 |
| Ginny Brennan | 1598125379 | Dental Hygienist | Waukesha, WI | 2016 |
| Glenna Brennan, CRNP | 1770052680 | Adult Health Nurse Practitioner | Brunswick, ME | 2018 |
| Gloria Brennan, CRNA | 1598850430 | Certified Registered Nurse Anesthetist | Boca Raton, FL | 2006 |
| Goodman Brennan, PH.D. | 1396774592 | Clinical Psychologist | McDonough, GA | 2006 |
| Grace Brennan | 1073391462 | Athletic Trainer | Springfield, MA | 2023 |
| Grace Brennan | 1881364784 | Behavior Technician | East Sandwich, MA | 2021 |
| Gregory Brennan, D.C. | 1164597175 | Chiropractor | Lorain, OH | 2006 |
| Gregory Brennan, PA-C | 1629300124 | Physician Assistant | Boston, MA | 2010 |
| Gregory Brennan, M.D. | 1689017105 | Gastroenterology Physician | Mansfield, TX | 2013 |
| H. Brennan, M.D. | 1558396895 | Otolaryngology/Facial Plastic Surgery Physician | Newport Beach, CA | 2006 |
| Haley Brennan, MS, RDN | 1134827249 | Registered Dietitian | Galloway, NJ | 2023 |
| Haley Brennan, MHCA | 1437988987 | Mental Health Counselor | New York, NY | 2024 |
| Haley Brennan, PA-C | 1528430865 | Medical Physician Assistant | Midland, TX | 2015 |
| Haley Brennan | 1528922150 | Physician Assistant | Elon, NC | 2025 |
| Haley Brennan, LCSW | 1801266945 | Clinical Social Worker | Rochester, NY | 2015 |
| Hannah Brennan, M.S., OTR/L | 1275064404 | Pediatric Occupational Therapist | Phoenix, AZ | 2017 |
| Hannah Brennan, LMFT | 1376167734 | Marriage & Family Therapist | White River Jct, VT | 2020 |
| Hannah Brennan, PTA | 1609091255 | Physical Therapy Assistant | Avon, IN | 2007 |
| Harleigh Brennan | 1588508451 | Assistant Behavior Analyst | Kansas City, MO | 2026 |
| Hayley Brennan | 1023984648 | Student in an Organized Health Care Education/Training Program | San Diego, CA | 2025 |
| Hayley Brennan, DO | 1861142374 | Pediatrics Physician | Wytheville, VA | 2022 |
| Heather Brennan, M.D. | 1043292808 | Family Medicine Physician | Spokane, WA | 2005 |
| Heather Brennan, LDN | 1144620535 | Registered Dietitian | Williamsport, PA | 2014 |
| Heather Brennan, OTR/L | 1720097462 | Occupational Therapist | Providence, RI | 2006 |
| Henry Brennan, OTD, OTR/L | 1881410868 | Occupational Therapist | Colorado Springs, CO | 2024 |
| Herbert Brennan, DO | 1659489060 | Internal Medicine Physician | East Greenwich, RI | 2006 |
| Hillary Brennan, CRNA | 1417243577 | Certified Registered Nurse Anesthetist | New Orleans, LA | 2011 |
| Holly Brennan, RD | 1245852094 | Registered Dietitian | Melbourne, FL | 2020 |
| Holly Brennan | 1700417870 | Art Therapist | Brooklyn, NY | 2020 |
| Holly Brennan, PT, DPT | 1871288530 | Physical Therapist | Orange, CA | 2023 |
| Hope Brennan, SLP | 1639318165 | Speech-Language Pathologist | Saugerties, NY | 2009 |
| Ian Brennan | 1750660239 | Vascular & Interventional Radiology Physician | Boston, MA | 2011 |
| Ingrid Brennan, MD | 1518046655 | Hospitalist Physician | San Rafael, CA | 2006 |
| Irina Brennan, MD, PHD | 1053605584 | Emergency Medicine Physician | Alexandria, VA | 2011 |
| J Brennan, MD | 1043261316 | Internal Medicine Physician | Columbus, OH | 2006 |
| Jacalyn Brennan, MS/SLP/CCC | 1922244136 | Speech-Language Pathologist | Fort Edward, NY | 2008 |
| Jacinta Brennan, LCSW R | 1982816039 | Social Worker | Oneonta, NY | 2007 |
| Jack Brennan | 1740543107 | Marriage & Family Therapist | Los Angeles, CA | 2012 |
| Jacob Brennan | 1083121131 | Addiction (Substance Use Disorder) Counselor | Jenkintown, PA | 2018 |
| Jacob Brennan | 1235793043 | Orthopaedic Surgery Physician | Boerne, TX | 2019 |
| Jacob Brennan, PT, DPT | 1609443050 | Physical Therapist | Scottsdale, AZ | 2021 |
| Jacquelaine Brennan | 1659003168 | Psychiatric/Mental Health Nurse Practitioner | West Palm Beach, FL | 2022 |
| Jacquelin Brennan, MED | 1538836523 | Professional Counselor | Youngstown, OH | 2021 |
| Jacqueline Brennan, LCSW | 1033460118 | Clinical Social Worker | Trenton, NJ | 2012 |
| Jacqueline Brennan, OTR | 1144484908 | Occupational Therapist | Lyons, CO | 2008 |
| Jacqueline Brennan, LCSW | 1689741233 | Clinical Social Worker | Bayside, NY | 2006 |
| Jaime Brennan | 1902727894 | Mental Health Counselor | Turnersville, NJ | 2026 |
| James Brennan, P.T, | 1144451220 | Physical Therapist | Lanesboro, MA | 2009 |
| James Brennan, M.D. | 1164689105 | Internal Medicine Physician | Durham, NC | 2008 |
| James Brennan, D.M.D. | 1164787040 | General Practice Dentistry | Chandler, AZ | 2012 |
| James Brennan, PA-C | 1164891917 | Physician Assistant | Baltimore, MD | 2015 |
| James Brennan, M.D. | 1336167741 | Pediatric Adolescent Medicine Physician | Richmond, VA | 2006 |
| James Brennan, MD | 1447217666 | Neurological Surgery Physician | Norfolk, VA | 2006 |
| James Brennan, DPT | 1477449205 | Physical Therapist | Minneapolis, MN | 2025 |
| James Brennan, M.D. | 1477533933 | Specialist | Columbia, SC | 2006 |
| James Brennan, D.D.S. | 1508959222 | General Practice Dentistry | Akron, OH | 2006 |
| James Brennan, D.D.S. | 1598761884 | Orthodontics and Dentofacial Orthopedics Dentistry | Cumberland, RI | 2005 |
| James Brennan, D.D.S. | 1609055284 | General Practice Dentistry | Fort Worth, TX | 2007 |
| James Brennan, D.D.S. | 1619970522 | Dentist | Grand Rapids, MI | 2005 |
| James Brennan, M.D. | 1659634145 | Hematology (Internal Medicine) Physician | Clearwater, FL | 2012 |
| James Brennan, R.PH. | 1669857165 | Pharmacist | Parkville, MD | 2015 |
| James Brennan, M.D. | 1699714360 | Obstetrics & Gynecology Physician | Saint Louis, MO | 2006 |
| James Brennan, MSW | 1780608224 | Clinical Social Worker | Menlo Park, CA | 2006 |
| James Brennan, RN | 1902443930 | Emergency Registered Nurse | Ann Arbor, MI | 2019 |
| James Brennan, M.D. | 1912949173 | Cardiovascular Disease Physician | Lagrange, GA | 2006 |
| James Brennan, PT | 1922189992 | Physical Therapist | Newark, DE | 2006 |
| James Brennan, R.PH. | 1922372606 | Pharmacist | Lakewood Village, TX | 2012 |
| James Brennan, MD | 1942238704 | Urology Physician | San Andreas, CA | 2006 |
| James Brennan | 1962633271 | Case Manager/Care Coordinator | Nevada City, CA | 2009 |
| James Michael Brennan, PHD | 1316653835 | Psychologist | San Francisco, CA | 2023 |
| Jamie Brennan | 1073068250 | Professional Counselor | Englewood, CO | 2016 |
| Jamie Brennan | 1528313640 | Specialist | Port Jeff Sta, NY | 2012 |
| Jamie Brennan, NP-C | 1689031536 | Family Nurse Practitioner | Highland, IN | 2016 |
| Jan Brennan | 1326193442 | Case Manager/Care Coordinator | Evansville, IN | 2007 |
| Jane Brennan, MA | 1508053901 | Mental Health Counselor | Walpole, MA | 2007 |
| Janelle Brennan | 1063975654 | Behavior Technician | Salem, OR | 2019 |
| Janet Brennan, LPTA | 1487974028 | Physical Therapy Assistant | Danvers, MA | 2010 |
| Janice Brennan, APRN | 1003000860 | Family Nurse Practitioner | Lebanon, NH | 2007 |
| Janice Brennan, LMSW | 1134260672 | Clinical Social Worker | Saginaw, MI | 2007 |
| Janice Brennan, RN | 1841886249 | Registered Nurse | Greenwich, CT | 2020 |
| Janice Brennan, OTR | 1891887493 | Pediatric Occupational Therapist | Danbury, CT | 2006 |
| Jaqualecyn Brennan, MSW | 1598247934 | Health Educator | Ann Arbor, MI | 2018 |
| Jarrod Brennan, D.C. | 1780768499 | Chiropractor | Rochester, MN | 2006 |
| Jasmine Brennan, BCBA | 1841756566 | Behavior Analyst | Pomona, CA | 2019 |
| Jason Brennan | 1912039876 | Medical Physician Assistant | Phoenixville, PA | 2007 |
| Jean Brennan, RN | 1306238597 | Registered Nurse | Phoenix, AZ | 2015 |
| Jean Brennan, LCSW | 1558303594 | Clinical Social Worker | Los Angeles, CA | 2006 |
| Jean Brennan, O.D. | 1740321710 | Optometrist | Petaluma, CA | 2007 |
| Jean-Marie Brennan, LICSW | 1609373653 | Clinical Social Worker | Woodbury, MN | 2018 |
| Jeanette Brennan, OTR/L | 1548641483 | Occupational Therapist | Frederick, MD | 2015 |
| Jeanne Brennan, D.C. | 1508957259 | Chiropractor | Linwood, NJ | 2006 |
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).