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 50 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. Gabriella Pelosi, LMHCMental Health Counselor1841951514
  2. Natalie Penn, MDGastroenterology Physician1588152706
  3. Marjorie Pepe, M.D.Pediatrics Physician1811038771
  4. Joanne Peperone, LMHCCounselor1265832059
  5. Chelsea Percy, P.A.-CPhysician Assistant1922472224
  6. David Perelstein, DPMFoot & Ankle Surgery Podiatrist1548231822
  7. Jenna PerezAdult Health Nurse Practitioner1679403265
  8. Pedro Perez Cartagena, M.D.Anesthesiology Physician1134360167
  9. Jose Perez-Brache, MDEmergency Medical Services (Emergency Medicine) Physician1033162144
  10. Jason Pericak, MDDiagnostic Radiology Physician1689823411
  11. Jennifer PerilloOccupational Therapy Assistant1639619232
  12. Steven Perlow, AU.D.Audiologist1609879147
  13. Susan Perlow, SLPSpeech-Language Pathologist1114208188
  14. Debra Perry, LPNLicensed Practical Nurse1740343334
  15. Katherine Perry, NPNeonatal Nurse Practitioner1306813019
  16. Amanda Persaud, M.D.Pediatrics Physician1073821443
  17. Carol Peter-Tabone, LCSWClinical Social Worker1629197694
  18. Alexandra Peters, PA-CPhysician Assistant1346768652
  19. Cassandra Peters, RNRegistered Nurse1891132478
  20. Lynda Peters, LPNLicensed Practical Nurse1487716189
  21. Anne Peterson, FNPFamily Nurse Practitioner1760312060
  22. Caylee Peterson, LPNLicensed Practical Nurse1487484150
  23. Kelsey Peterson, LMSWClinical Social Worker1336733179
  24. Zoe PezouvanisSpeech-Language Pathologist1255253563
  25. Sharon Pezzino, R.PH.Pharmacist1083937932
  26. Kishor Phadke, M.D.Cardiovascular Disease Physician1205840162
  27. Kathleen Phalen, RPHPharmacist1144430216
  28. Anh Phan, M.DStudent in an Organized Health Care Education/Training Program1669031365
  29. Charles PhelpsChiropractor1689094310
  30. Amber PhillippiPhysician Assistant1215491600
  31. Curtis Phillippi, PAPhysician Assistant1235725102
  32. Andrea Phipps, PAPhysician Assistant1881027845
  33. James Phipps, D.C.Chiropractor1407188337
  34. Jacqueline Piazza, PA-CMedical Physician Assistant1003405101
  35. John Picano, M.D.Gastroenterology Physician1003202615
  36. Deanna Pieczynski, AGPCNPAdult Health Nurse Practitioner1578023172
  37. Meaghan Piegay, PA-CPhysician Assistant1780237578
  38. Angela Pieprzak, PHARMDPharmacist1285153312
  39. Kathleen PierceFamily Medicine Physician1639810856
  40. Daniel Pieroni, M.D.Pediatric Cardiology Physician1619033719
  41. Stanley Pietrak, M.D.Gastroenterology Physician1396794939
  42. Celestino Pietrantoni, DOPulmonary Disease Physician1689658312
  43. Jaime Pietras, M.S.ED./ CCC-SLPSpeech-Language Pathologist1619237161
  44. William Pilarski, RNRegistered Nurse1851654354
  45. Roberto Pili, MDMedical Oncology Physician1669419867
  46. Vikas Pilly, M.D.Interventional Pain Medicine Physician1841302403
  47. Ashley Pinak, RNRegistered Nurse1558703470
  48. Robert Pionessa, OSCCase Manager/Care Coordinator1952652042
  49. Pavatharani Piratheepan, MBBSEndocrinology, Diabetes & Metabolism Physician1700468196
  50. Katie PirgerNurse Practitioner1538986179

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.