NPPES file of Aug 9, 2026

Doctors and health care providers in Williamsville, NY

3,530 individual NPPES records list a practice address in Williamsville, 16th of 1,009 New York cities. The largest group is licensed practical nurse: 605, 17% of the city's records, against 4% across New York. Page 48 of 71.

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

The 8 largest groups in Williamsville

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

Williamsville in New York

  • Rank in New York16th of 1,009 cities by records
  • Share of the state0.7% of New York's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28% of all records
  • Licensed Practical Nurse rank5th of the 10 New York cities with the most

Compared with New York as a whole, Williamsville has 4.1× the state's share of licensed practical nurse records and 0.24× its share of student in an organized health care education/training program records.

Providers in Williamsville, alphabetically

  1. Chance OlivasMental Health Counselor1770314924
  2. Michelle Oliver-Houston, L.P.N.Licensed Practical Nurse1750895850
  3. Roseanne Oliverio, MDDiagnostic Radiology Physician1073516985
  4. Dillon Olivieri, DPTPhysical Therapist1033877097
  5. Melanie Olivieri, LMTMassage Therapist1649683210
  6. Paul Olizarowicz, RPA-CMedical Physician Assistant1639128648
  7. Jennifer Olmstead, LPNLicensed Practical Nurse1437598901
  8. Dana Olson, SLPSpeech-Language Pathologist1144425984
  9. Thomas Olson, LMTMassage Therapist1598117491
  10. Tracey Olson, RNFARegistered Nurse First Assistant1780431155
  11. Alexandra Olyer, LMHC, NCC, PMH-CMental Health Counselor1972040822
  12. Robert Omalley, ATCAthletic Trainer1538135553
  13. Jeremy OosterkampCertified Registered Nurse Anesthetist1750889853
  14. Rose Opera, LPNLicensed Practical Nurse1962740100
  15. Jessica Oppee, AU.D.Audiologist1396099867
  16. Benjamin Oppenheimer, DDSGeneral Practice Dentistry1528159498
  17. Philip Oppenheimer, PTPhysical Therapist1366729337
  18. David Oravec, LPNLicensed Practical Nurse1972983039
  19. Anna OrfanidisStudent in an Organized Health Care Education/Training Program1043750094
  20. Liam Ortega, DOOrthopaedic Hand Surgery Physician1770157604
  21. Carrie Ortiz, LPNLicensed Practical Nurse1437530284
  22. Emmanuel Ortiz, LPNLicensed Practical Nurse1376080804
  23. Kimberly Ortiz, LPNLicensed Practical Nurse1598282675
  24. Christina Osborne, FNPFamily Nurse Practitioner1508596966
  25. Jenny Osburn, RNHome Health Registered Nurse1780746412
  26. Dennis OsiakContact Lens Fitter1174694681
  27. Chelsea OsmanMental Health Counselor1427924307
  28. Magda Osman, MDObstetrics & Gynecology Physician1518916196
  29. Maria OstafewRegistered Dietitian1205537636
  30. Jessica Oswald, PA-CMedical Physician Assistant1154821452
  31. Wendy Ouellette, CRNACertified Registered Nurse Anesthetist1326107970
  32. Andrea Overturf, NPPediatric Nurse Practitioner1811209695
  33. Alexandra Owczarzak, DC, MSESChiropractor1871228239
  34. Cheryl Owczarzak, PA-CSurgical Physician Assistant1598047904
  35. Michael Owsowitz, M.A.Mental Health Counselor1164430021
  36. Adedayo OyewoPhysical Therapist1184164188
  37. Jacqueline Ozzimo, P.T.Physical Therapist1144363870
  38. Lawrence Pace, D,D.S.Endodontics1164500542
  39. Nalini Packianathan, MDAllergy & Immunology Physician1750653101
  40. Steven Packwood, CHIROPRACTORChiropractor1023896941
  41. Parikshit Padhi, MDHematology & Oncology Physician1528356037
  42. Karina Pagan, FNP-BCFamily Nurse Practitioner1649050170
  43. Patricia Page, LPNLicensed Practical Nurse1891232963
  44. Vandana Pai, M.D.Pulmonary Disease Physician1699156620
  45. Erik PalermoNurse Practitioner1013376433
  46. Sarita Palhan, LPNLicensed Practical Nurse1497150379
  47. Kelli Paluch, LPNLicensed Practical Nurse1376818617
  48. Rachael Paluch, LPNLicensed Practical Nurse1285826149
  49. Melissa Paluh, RNRegistered Nurse1811217896
  50. Vito Palumbo, D.O.Family Medicine Physician1700841756

The largest New York cities

  1. New York98,468
  2. Brooklyn64,057
  3. Bronx32,017
  4. Rochester20,520
  5. Buffalo13,287

All of New York →

How to read this directory

Williamsville, New York appears in the CMS National Plan and Provider Enumeration System with 3,530 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 Williamsville - 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 Williamsville 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 Williamsville is weighted toward Licensed Practical Nurse (605 clinicians, followed by Registered Nurse with 207 and Physician Assistant with 178). 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, Williamsville reports roughly 18 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.

Of New York's most common specialties, Social Worker is the most prominent one with no provider currently listing a Williamsville practice address, a coverage gap Williamsville patients typically fill by traveling to a larger nearby hub.

For Williamsville 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 Williamsville, NY?

There are 3,530 registered healthcare providers in Williamsville, NY, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Williamsville?

The most common specialties in Williamsville are Licensed Practical Nurse, Registered Nurse, Physician Assistant, Pharmacist, Physical Therapist. Licensed Practical Nurse has the most providers with 605.

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.