Doctors and health care providers in Buffalo, NY
13,287 individual NPPES records list a practice address in Buffalo, 5th of 1,009 New York cities. The largest group is students in training: 1,234, 9% of the city's records, against 7% across New York. Page 178 of 266.
The 8 largest groups in Buffalo
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Buffalo in New York
- Rank in New York5th of 1,009 cities by records
- Share of the state2.5% of New York's records
- Specialties present25 or more taxonomy codes
- Top three groups19.3% of all records
- Students in training rank6th of the 10 New York cities with the most
Compared with New York as a whole, Buffalo has 7.4× the state's share of counselor records and 0.42× its share of physical therapist records.
Providers in Buffalo, alphabetically
- Armida Orozco, M.D.General Practice Physician1497171706
- Courtney OrrOccupational Therapy Assistant1811663123
- Justin Orr, B.A.Social Worker1386956050
- Lana Orrange, LCAT, ATR-BCArt Therapist1205480902
- Connor OrricoStudent in an Organized Health Care Education/Training Program1780388702
- Kathryn OrsinoRegistered Dietitian1427743954
- Daniel Ort, L.M.H.C.D., CASACAddiction (Substance Use Disorder) Counselor1760762611
- Angela Ortiz, LPNLicensed Practical Nurse1487249264
- Carmen OrtizPeer Specialist1992484679
- Christine Ortiz, FPAAddiction (Substance Use Disorder) Counselor1790261931
- Ivan OrtizPeer Specialist1013546175
- Maria Ortiz, L.C.S.W.Mental Health Counselor1750463634
- Roberto Ortiz, MSWAddiction (Substance Use Disorder) Counselor1639910540
- Ruby OrtizBehavior Technician1558206847
- Dinoshka Ortiz RojasCounselor1437034808
- Jennifer Ortiz-Arriaga, CASAC-TRehabilitation Counselor1104304807
- Karen Ortiz-ReyesCase Manager/Care Coordinator1255010088
- Caitlin Ortman, PAPhysician Assistant1235505264
- Janine OrtmanSpecialist1295191229
- John Ortolani, M.D.Colon & Rectal Surgery Physician1760781330
- Leanne Ortolano, NPNurse Practitioner1881940831
- Salvatore Ortolano, D.D.S.General Practice Dentistry1043353741
- Victoria OrtonClinical Social Worker1922382761
- Nasim Orumchi, DDSStudent in an Organized Health Care Education/Training Program1992696124
- Patricia Orzech, ODOptometrist1508861972
- Ryosuke Osawa, MDInfectious Disease Physician1104035997
- Felix Osawaru, PMHNPPsychiatric/Mental Health Nurse Practitioner1083229538
- Isaac OsazeeCase Manager/Care Coordinator1407315039
- Kyle Osborn, M.D.Family Medicine Physician1417942582
- Melissa OscierMental Health Counselor1619625969
- Juanne Osigweh, MDSurgical Critical Care Physician1750545745
- Feyza Osmancikli, CRPA-P-9522Peer Specialist1871421990
- Jill OsmondCounselor1851890891
- Maylin Osorio-Vinales, RNRegistered Nurse1134851934
- Joan Osswald, N.P.Nurse Practitioner1588686307
- Susan Ostrander, LMSWCounselor1750649075
- Nicole OstroStudent in an Organized Health Care Education/Training Program1548616204
- Peter Ostrow, MDNeuropathology Physician1841264389
- Jessica Ostrowski, CNMAdvanced Practice Midwife1699731166
- Kelly Ostrowski, PTPhysical Therapist1558643460
- Kimberly Ostrowski, LCSW-RClinical Social Worker1457560104
- Susan OstrowskiClinical Social Worker1184261323
- Julia OswaldPharmacist1538837380
- Bashar Othman, PHARMDPharmacist1972482230
- Roaa Othman, PHARMDPharmacist1114807385
- David OtisCounselor1063198695
- Clarissa Ott, MSED CCC-SLPSpeech-Language Pathologist1487362802
- Michael Ott, PHARM DPharmacotherapy Pharmacist1154618148
- Kristen OttleySocial Worker1497068704
- Leanne Ottoni, M.D.Student in an Organized Health Care Education/Training Program1508431602
The largest New York cities
- New York98,468
- Brooklyn64,057
- Bronx32,017
- Rochester20,520
- Staten Island12,351
How to read this directory
Buffalo, New York appears in the CMS National Plan and Provider Enumeration System with 13,287 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 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 2024 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 (1,234 clinicians, followed by Counselor with 716 and Licensed Practical Nurse with 609). 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 67.9 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.
For Buffalo 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 Buffalo, NY?
There are 13,287 registered healthcare providers in Buffalo, NY, covering 25 or more 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, Licensed Practical Nurse, Pharmacist, Registered Nurse. Student in an Organized Health Care Education/Training Program has the most providers with 1,234.
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.