2026 data CMS NPPES NUCC Taxonomy

Doctors in Buffalo, NY

Compiled from official public sources by the PlainDoctor editorial team.

Active healthcare providers in Buffalo sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

12,958
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Student in an Organized Health Care Education/Training Program
Top specialty
1,347 providers
New York
State
NY

12,958 healthcare providers across 20 specialties

Buffalo, New York appears in the CMS National Plan and Provider Enumeration System with 12,958 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Buffalo - 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 Buffalo 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 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Buffalo is weighted toward Student in an Organized Health Care Education/Training Program (1,347 clinicians, followed by Counselor with 751 and Registered Nurse with 646). 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, Buffalo reports roughly 66.2 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.

Within New York, Buffalo ranks #5 of 1,005 cities tracked by provider count, accounting for 2.4% of the state's registered providers.

For Buffalo patients, this directory is most useful as a starting shortlist, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

12,958
Providers
20
Specialties
#5
of 1,005 NY cities
2.4%
of NY providers
66.2
Per 100K (state)

Which specialties are most common in Buffalo

Student in an Organized Health Care Education/Training Program 1,347
Counselor 751
Registered Nurse 646
Licensed Practical Nurse 601
Pharmacist 592
Mental Health Counselor 553
Social Worker 545
Physician Assistant 447
Speech-Language Pathologist 432
Clinical Social Worker 400
Family Nurse Practitioner 361
Case Manager/Care Coordinator 310
Internal Medicine Physician 284
Specialist 277
Occupational Therapist 237
Addiction (Substance Use Disorder) Counselor 225
Physical Therapist 224
Adult Health Nurse Practitioner 216
Nurse Practitioner 156
Anesthesiology Physician 142

Healthcare Providers (Page 171)

Name
Michael O'Brien, MD, FAAEM
Emergency Medicine Physician
Nathan O'Brien, MD
Emergency Medicine Physician
Shalana O'Brien, M.D.
Surgery Physician
Shannon O'Brien, ANP
Adult Health Nurse Practitioner
Danielle O'Connell, DDS
Dentist
Erin O'Connell, B.A
Social Worker
Kristen O'Connell
Social Worker
Amelia O'Connor
Counselor
Ashley O'Connor
Speech-Language Pathologist
Brigid O'Connor
Doula
Jennifer O'Connor, COTA/L
Occupational Therapy Assistant
Jill O'Connor, M.S.ED/CCC-SLP
Speech-Language Pathologist
Paul O'Connor, D.O
Student in an Organized Health Care Education/Training Program
Zachary O'Connor, MS, NCC
Counselor
Theresa O'Doherty, NP
Family Nurse Practitioner
Amy O'Donnell, M.D.
Endocrinology, Diabetes & Metabolism Physician
Jane O'Donnell, PNP
Registered Nurse
Jennifer O'Donnell
Student in an Organized Health Care Education/Training Program
Katherine O'Donnell, D.O.
Student in an Organized Health Care Education/Training Program
Jessica O'Grady
Social Worker
Ashley O'Hanrahan, RN
Registered Nurse
Anne O'Hara, COTA
Occupational Therapy Assistant
Morgan O'Hara, RDN, CSR
Renal Nutrition Registered Dietitian
Cale O'Keeffe, M.D.
Internal Medicine Physician
Jane O'Leary, N.P.
Obstetrics & Gynecology Nurse Practitioner
Kathleen O'Leary, MD
Anesthesiology Physician
James O'Malley, MD
Student in an Organized Health Care Education/Training Program
Michael O'Neil
Peer Specialist
Stefaniee O'Neil
Case Manager/Care Coordinator
Catherine O'Neill, MD
Internal Medicine Physician
Margaret O'Neill
Case Manager/Care Coordinator
Susan O'Neill, LMT
Mechanotherapist
Margaret O'Neill - Tighe, RN, BSN
Home Health Registered Nurse
Olha O'Quinn, PHD, CDN, CDE
Nutritionist
Kelsea O'Rourke
Registered Dietitian
Lawrence O'Shea
Speech-Language Pathologist
Jeremiah O'Sullivan, MD
Internal Medicine Physician
Mary O'Sullivan, MS, OTR/L
Occupational Therapist
Meghan O'Sullivan
Counselor
Whitney Oaks
Physical Therapy Assistant
Dana Oar, M.ED., LMT
Massage Therapist
Ivan Oasay
Registered Nurse
Adam Obad
Internal Medicine Physician
Dawn Obe
Case Manager/Care Coordinator
Kaitlin Oberg, LCSW
Clinical Social Worker
Kristen Oberholtzer, LMSW
Clinical Social Worker
Adam Oberkircher, PA
Physician Assistant
Sandra Oberkircher, LMSW
Social Worker
Melissa Obermiller, L.M.T.
Massage Therapist
Bryana Obrien, RN
Licensed Practical Nurse

Nearby Cities in New York

Other New York cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Buffalo, NY?
There are 12,958 registered healthcare providers in Buffalo, NY, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Buffalo?
The most common specialties in Buffalo are Student in an Organized Health Care Education/Training Program, Counselor, Registered Nurse, Licensed Practical Nurse, Pharmacist. Student in an Organized Health Care Education/Training Program has the most providers with 1,347.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the PlainDoctor editorial team.