NPPES file of Aug 9, 2026

Doctors and health care providers in Buffalo, NY

13,287 individual NPPES records list a practice address in Buffalo, 5th of 1,009 New York cities. The largest group is students in training: 1,234, 9% of the city's records, against 7% across New York. Page 175 of 266.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Buffalo

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Buffalo in New York

  • Rank in New York5th of 1,009 cities by records
  • Share of the state2.5% of New York's records
  • Specialties present25 or more taxonomy codes
  • Top three groups19.3% of all records
  • Students in training rank6th of the 10 New York cities with the most

Compared with New York as a whole, Buffalo has 7.4× the state's share of counselor records and 0.42× its share of physical therapist records.

Providers in Buffalo, alphabetically

  1. Uchenna Nwaugo, RNRegistered Nurse1558044701
  2. Andrea Nwawka, MDPediatrics Physician1962105155
  3. Chukwumere Nwogu, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1164403770
  4. Obianuju NwokePhysician Assistant1952266991
  5. Alma NwugwoDoula1356814552
  6. Elizabeth Nyabuto, MDStudent in an Organized Health Care Education/Training Program1912535147
  7. Ashok Nyalakonda, MDAnesthesiology Physician1225002405
  8. Drocella NyiratungaMassage Therapist1083016018
  9. Matthew O Brien, MDInternal Medicine Physician1972551430
  10. Michelle O DiernoWomen's Health Nurse Practitioner1912051616
  11. Vanessa O NeilLicensed Practical Nurse1841531720
  12. Terrence O Neill, D.C.Chiropractor1538267919
  13. Catherine O'BrienSocial Worker1215274048
  14. Courtney O'Brien, PT, DPTPhysical Therapist1972804581
  15. Courtney O'BrienSpecialist1245592005
  16. Erick O'Brien, D.OEmergency Medicine Physician1306232178
  17. Joyce O'Brien, MA CCC/AAudiologist1790723526
  18. Michael O'Brien, MD, FAAEMEmergency Medicine Physician1720357353
  19. Nathan O'Brien, MDEmergency Medicine Physician1407438450
  20. Shalana O'Brien, M.D.Surgical Oncology Physician1144546854
  21. Shannon O'Brien, ANPAdult Health Nurse Practitioner1750798625
  22. Danielle O'Connell, DDSDentist1881190502
  23. Erin O'Connell, B.ASocial Worker1225547250
  24. Kristen O'ConnellSocial Worker1518778893
  25. Amelia O'ConnorCounselor1740835354
  26. Ashley O'ConnorSpeech-Language Pathologist1376304345
  27. Brigid O'ConnorDoula1124585385
  28. Jennifer O'Connor, COTA/LOccupational Therapy Assistant1023534583
  29. Jill O'Connor, M.S.ED/CCC-SLPSpeech-Language Pathologist1982851739
  30. Paul O'Connor, D.OAnesthesiology Physician1457887382
  31. Zachary O'Connor, MS, NCCCounselor1437732641
  32. Theresa O'Doherty, NPFamily Nurse Practitioner1043529597
  33. Amy O'Donnell, M.D.Endocrinology, Diabetes & Metabolism Physician1891715876
  34. Jane O'Donnell, PNPPediatric Nurse Practitioner1144303587
  35. Jennifer O'DonnellStudent in an Organized Health Care Education/Training Program1023863461
  36. Katherine O'Donnell, D.O.Student in an Organized Health Care Education/Training Program1144916313
  37. Jessica O'GradySocial Worker1649607029
  38. Ashley O'Hanrahan, RNRegistered Nurse1104465053
  39. Anne O'Hara, COTAOccupational Therapy Assistant1760773378
  40. Morgan O'Hara, RDN, CSRRegistered Dietitian1427736453
  41. Cale O'Keeffe, M.D.Internal Medicine Physician1235586553
  42. Jane O'Leary, N.P.Obstetrics & Gynecology Nurse Practitioner1649577735
  43. Kathleen O'Leary, MDAnesthesiology Physician1407847825
  44. James O'Malley, MDStudent in an Organized Health Care Education/Training Program1235712381
  45. Michael O'NeilPeer Specialist1205515723
  46. Stefaniee O'NeilCase Manager/Care Coordinator1568776581
  47. Catherine O'Neill, MDInternal Medicine Physician1992745194
  48. Margaret O'NeillCase Manager/Care Coordinator1265563704
  49. Susan O'Neill, LMTMechanotherapist1508199712
  50. Margaret O'Neill - Tighe, RN, BSNHome Health Registered Nurse1740508522

The largest New York cities

  1. New York98,468
  2. Brooklyn64,057
  3. Bronx32,017
  4. Rochester20,520
  5. Staten Island12,351

All of New York →

How to read this directory

Buffalo, New York appears in the CMS National Plan and Provider Enumeration System with 13,287 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Buffalo - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Buffalo practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Buffalo is weighted toward Student in an Organized Health Care Education/Training Program (1,234 clinicians, followed by Counselor with 716 and Licensed Practical Nurse with 609). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to New York's population, Buffalo reports roughly 67.9 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Buffalo patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Buffalo, NY?

There are 13,287 registered healthcare providers in Buffalo, NY, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Buffalo?

The most common specialties in Buffalo are Student in an Organized Health Care Education/Training Program, Counselor, Licensed Practical Nurse, Pharmacist, Registered Nurse. Student in an Organized Health Care Education/Training Program has the most providers with 1,234.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.