Doctors and health care providers in Rochester, NY
20,520 individual NPPES records list a practice address in Rochester, 4th of 1,009 New York cities. The largest group is licensed practical nurse: 1,843, 9% of the city's records, against 4% across New York. Page 271 of 411.
The 8 largest groups in Rochester
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Rochester in New York
- Rank in New York4th of 1,009 cities by records
- Share of the state3.8% of New York's records
- Specialties present25 or more taxonomy codes
- Top three groups21.7% of all records
- Licensed Practical Nurse rank2nd of the 10 New York cities with the most
Compared with New York as a whole, Rochester has 3.4× the state's share of hospitalist physician records and 0.55× its share of social worker records.
Providers in Rochester, alphabetically
- James Oliverio, NPAcute Care Nurse Practitioner1063525376
- Shannon Oliverio, ANPAdult Health Nurse Practitioner1871604306
- David Olivo, DMDDentist1225101272
- Yeter Olmez, NPFamily Nurse Practitioner1558231506
- Kerri Olney, RPHPharmacist1790008373
- Jessica Oloughlin, DOGeriatric Medicine (Family Medicine) Physician1255950515
- Richard Olsan, MDPersonal Emergency Response Attendant1518075639
- Francis Olscamp, PT, MPA, CPPhysical Therapist1386962017
- Brianna OlschewskeSpeech-Language Pathologist1073156287
- Julie Olschewski, RPHPharmacist1447337563
- Alexandra OlsenAdvanced Practice Midwife1104410950
- Clinton Olsen, PAPhysician Assistant1164446027
- Jennifer Olsen, MS, LPMHC, NCCMental Health Counselor1366209249
- Robert Olsen, MDOphthalmology Physician1508826579
- David Olson, RPHPharmacist1811924996
- Erik Olson, D.O.Gastroenterology Physician1235454620
- Kathryn Olson, MS, OTR/LOccupational Therapist1083843833
- Courtney Olson-Chen, M.D.Obstetrics & Gynecology Physician1366768202
- Zoltan Oltvai, MDAnatomic Pathology & Clinical Pathology Physician1679548374
- Omenihu Oluikpe, R.PH.Pharmacist1467784371
- Diego OlveraFamily Medicine Physician1215516968
- Ann Olzinski-Kunze, M.D.Surgical Oncology Physician1023045077
- William Omalley, M.D.Specialist1558327999
- Joanne Omeri, LPNLicensed Practical Nurse1750626297
- Mirai Omote, MDStudent in an Organized Health Care Education/Training Program1073457289
- Benjamin Onderdonk, M.D.Radiation Oncology Physician1013370295
- Samantha Onderdonk, DPTPhysical Therapist1215793211
- Ashley OnealLicensed Practical Nurse1619562220
- Emily OneilLicensed Practical Nurse1427870047
- Kara OneillMental Health Counselor1942124193
- Rebecca Oneill, LMSWMental Health Counselor1760774202
- Ling Ong, M.D.Cardiovascular Disease Physician1154322493
- Rebecca Ong, NPAdult Health Nurse Practitioner1801179858
- Erin Ontiveros, CLCLactation Consultant (Non-RN)1457899387
- Eliana Ontiveros-ObergPhysician Assistant1659251296
- Frederick Onufryk, PTPhysical Therapist1396950291
- Princess OnuorahStudent in an Organized Health Care Education/Training Program1679261481
- David Onyenma, DPMFoot & Ankle Surgery Podiatrist1194402396
- Michelle OpipariPharmacist1346624400
- Janice Opladen, N.P.Adult Health Nurse Practitioner1528172814
- Samuel Opoku-Acheampong, MDEmergency Medicine Physician1114668316
- Daniel Oppenheimer, MDDiagnostic Radiology Physician1144519992
- John OradatPharmacist1376722744
- Abdullah Orakzai, MD, MBBSStudent in an Organized Health Care Education/Training Program1407588452
- Meg Orbaker, RNMSRegistered Nurse1659019156
- Emily OrbanSpeech-Language Pathologist1194220202
- Jessica Orchard, LMHCMental Health Counselor1255036570
- Carline OrelienFamily Nurse Practitioner1063364438
- Elizabeth Orengo, RNCommunity Health Registered Nurse1215239108
- Elias OrfanidesStudent in an Organized Health Care Education/Training Program1902694284
The largest New York cities
- New York98,468
- Brooklyn64,057
- Bronx32,017
- Buffalo13,287
- Staten Island12,351
How to read this directory
Rochester, New York appears in the CMS National Plan and Provider Enumeration System with 20,520 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 Rochester - 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 Rochester 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 Rochester is weighted toward Licensed Practical Nurse (1,843 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,700 and Registered Nurse with 904). 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, Rochester reports roughly 104.8 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, Specialist is the most prominent one with no provider currently listing a Rochester practice address, a coverage gap Rochester patients typically fill by traveling to a larger nearby hub.
For Rochester 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 Rochester, NY?
There are 20,520 registered healthcare providers in Rochester, NY, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Rochester?
The most common specialties in Rochester are Licensed Practical Nurse, Student in an Organized Health Care Education/Training Program, Registered Nurse, Mental Health Counselor, Family Nurse Practitioner. Licensed Practical Nurse has the most providers with 1,843.
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.