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 38 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
- Marcia Litz, LPNLicensed Practical Nurse1780034520
- Hong Liu, MD PHDHematology & Oncology Physician1942383807
- Aries Liu-Helm, MDAllergy & Immunology Physician1790742161
- James Livengood, RNRegistered Nurse1306082367
- Tressa Lloyd, LMHCMental Health Counselor1972731222
- John Lobianco, P.A.Physician Assistant1023457959
- Nicole Lobianco, MS, CCC-SLPSpeech-Language Pathologist1710397864
- John Lofaso, DOAnesthesiology Physician1124387873
- Phyllis Lofaso, LPNLicensed Practical Nurse1396809703
- Erica Loftin, LMHCMental Health Counselor1104526615
- Randall Loftus, MDDiagnostic Radiology Physician1962460329
- Tiffony Loman, LPNLicensed Practical Nurse1689448201
- James LombardoRegistered Nurse1437800711
- Leslie Long, ODOptometrist1336140151
- Matthew Long, PA-CPhysician Assistant1891523544
- Susan Long, LPNLicensed Practical Nurse1881087211
- Marlene Longdon, NPPsychiatric/Mental Health Nurse Practitioner1912919291
- Steven LontoLicensed Practical Nurse1528731957
- James Loomis, DOFamily Medicine Physician1386273233
- Andre Lopez, MDFamily Medicine Physician1568455657
- Gabriel Lopez, PAMedical Physician Assistant1326696899
- Oscar Lopez, MDPsychiatry Physician1558315879
- Vincent Lorenz, PAPhysician Assistant1700899887
- Conner Lorenzo, CSCSStudent in an Organized Health Care Education/Training Program1942733647
- Lauren Losi, PT DPTPhysical Therapist1598294829
- Thomas Lostracco, MDDiagnostic Radiology Physician1558680611
- Nicholas Lott, PA-CPhysician Assistant1184512329
- Carol LoucksOccupational Therapy Assistant1134467004
- Peter Loud, MDDiagnostic Radiology Physician1811987944
- Travis LoughranClinical Psychologist1508016783
- Mary Ellen Loughrey, O.D.Optometrist1801894068
- Candace Love, LPNLicensed Practical Nurse1851640957
- Ashley LovulloEducational Registered Respiratory Therapist1538548987
- Brian Lowe, DNP, CRNACertified Registered Nurse Anesthetist1497244628
- Lauren Lowe, FNP-BCFamily Nurse Practitioner1841671989
- Betty Luber, MS ED., CRCCase Manager/Care Coordinator1265597314
- Micaela Lucarelli, FNP-BCNurse Practitioner1205209624
- Brian Lucas, PAEmergency Medical Services (Emergency Medicine) Physician1205882636
- Joei Lucey, RNGeneral Practice Registered Nurse1821786518
- Samantha LuchanAdult Health Nurse Practitioner1598331894
- Ashley Ludwick, LPNLicensed Practical Nurse1801611843
- Mark Ludwig, RPHPharmacist1629391941
- Allison Luksch, PAPhysician Assistant1841777604
- William LumaduePhysical Therapy Assistant1053709964
- Maureen Lundergan, M.D.Ophthalmology Physician1306841226
- Jill Lundy, LPNLicensed Practical Nurse1730244914
- Meagan Lutgen, LPNLicensed Practical Nurse1861916108
- Prerna Luthra, DOStudent in an Organized Health Care Education/Training Program1902581804
- Jennifer Lutz, LPNLicensed Practical Nurse1568622975
- Jenna Luzi, PA-CMedical Physician Assistant1427681998
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.