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 47 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
- Briana Niland, DOFamily Medicine Physician1033554621
- Charles Niles, M.D.Ophthalmology Physician1053378109
- Philip Niles, MDRetina Specialist (Ophthalmology) Physician1609136126
- Patricia Nisbet, RN PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1598790255
- Philip Niswander, M.D.Ophthalmology Physician1306844550
- Annaliese Noack, DOInternal Medicine Physician1750510418
- Nicole Nobel, LCSW - RClinical Social Worker1235153859
- Amy Nolan, PTMSPhysical Therapist1326094780
- Allyn Norman, D.O.Internal Medicine Physician1568420925
- Anastasia Norman, LPNLicensed Practical Nurse1073861423
- Christina Norris, RPA-CMedical Physician Assistant1699265256
- Daniel Norton, LCSWRClinical Social Worker1417984667
- Janet Norton, RNHome Health Registered Nurse1396803193
- Anthony Notino, MDDiagnostic Radiology Physician1427014448
- Amanda NotteOccupational Therapy Assistant1598150872
- Kevin Nowicki, D.D.S.Dentist1679735377
- Melissa Nowicki, P.A.Medical Physician Assistant1235453234
- Brianna Nuttle, PAPhysician Assistant1992206221
- Lisa Nuwer, PT,CHTPhysical Therapist1760759328
- Juliette Nwachukwuu, MDEndocrinology, Diabetes & Metabolism Physician1609838002
- Patricia Nwokolo, LPNLicensed Practical Nurse1063744134
- Annette O'Connell, L.P.NLicensed Practical Nurse1528122322
- Kathleen O'Connor-Mullen, NPNurse Practitioner1659321974
- Katherine O'Donnell, M.D.Surgery Physician1912996133
- Sheila O'Donnell, LPNLicensed Practical Nurse1740799204
- Ashley O'Hara, LPNLicensed Practical Nurse1942504915
- Heather O'Hara, PNPPediatric Nurse Practitioner1265194062
- Darlene O'Keeffe, OTR/LOccupational Therapist1801045075
- Amy O'Mara, LPNLicensed Practical Nurse1861723421
- James O'May, RPA-CSurgical Physician Assistant1902836604
- Eric O'Neal, MDStudent in an Organized Health Care Education/Training Program1548953540
- Jamal O'Neill, LMTMassage Therapist1417180407
- Tara O'Sullivan-Jordan, RNRegistered Nurse1477986180
- Shea ObearSpecialist1629711403
- Leanna Obeng-Asante, RNRegistered Nurse1558076356
- Kaitlin Oberg, LCSWClinical Social Worker1730558693
- Allyson Odachowski, RDN, CDNRegistered Dietitian1235221557
- Amanda Ode, FNP-BCNurse Practitioner1154820231
- Jean Odell, RNRegistered Nurse1427338375
- Fiyinfolu OdemuyiwaHematology & Oncology Physician1104347558
- Larry OdomLicensed Practical Nurse1205258225
- Patricia Odonnell, DOFamily Medicine Physician1316012560
- Chidimma Oduwegwu, M.D.Internal Medicine Physician1992154942
- Merrie Oei, M.D.Diagnostic Radiology Physician1801247713
- Bethany Oesterle, PHARMDPharmacist1871939256
- Justin Ogilvie, LPNLicensed Practical Nurse1205275773
- Reynelda OkaforLicensed Practical Nurse1760047476
- Michelle Olandese, LCSWRClinical Social Worker1912334285
- Barbara Olewnick, LPNLicensed Practical Nurse1003977141
- Samantha OlewnikPhysician Assistant1568293363
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.