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