NPPES file of Aug 9, 2026

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 268 of 411.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Daniel O'Hara, RPA-CSurgical Physician Assistant1083644363
  2. Katherine O'Hara, LMSWSchool Social Worker1154969913
  3. Michael O'HareOccupational Therapist1679357859
  4. Colleen O'Keefe, COTAOccupational Therapy Assistant1588099386
  5. Kelly O'Keefe, RDRegistered Dietitian1912321399
  6. Meghan O'Keefe, MDStudent in an Organized Health Care Education/Training Program1104513456
  7. Shannon O'Leary, MT-BCMusic Therapist1922478106
  8. Timothy O'Leary, DDSGeneral Practice Dentistry1699831453
  9. Gavin O'Mahony, MDOrthopaedic Hand Surgery Physician1255531216
  10. Gerard O'Malley, LPNLicensed Practical Nurse1770834848
  11. Keelan O'Malley, DMDStudent in an Organized Health Care Education/Training Program1770254831
  12. Natasha O'Malley, FRCSPediatric Orthopaedic Surgery Physician1992042527
  13. Shannon O'Malley, DPTPhysical Therapist1699326967
  14. Kelly O'Mara, PT, DPTPhysical Therapist1265670475
  15. Nyelah O'MeallySocial Worker1033908819
  16. Carolyn O'MearaChiropractor1104254366
  17. Pauletta O'Neal-Brown, CASAC-TAddiction (Substance Use Disorder) Counselor1285580274
  18. Kate O'NeilStudent in an Organized Health Care Education/Training Program1376378984
  19. Page O'Neil, LPNLicensed Practical Nurse1922557149
  20. Shawn O'NeilOptician1790290773
  21. Edna O'Neill, D.P.T.Physical Therapist1871893024
  22. Sean O'NeillAddiction (Substance Use Disorder) Counselor1760723498
  23. Mary O'Neill-Huber, M.D.Colon & Rectal Surgery Physician1013977495
  24. Hollis O'Nell-MeyerStudent in an Organized Health Care Education/Training Program1639750599
  25. Ruth O'Regan, MDMedical Oncology Physician1215981238
  26. Ann Marie O'Reilly, MSED, OTRSpecialist1093961880
  27. Brigid O'Rourke, PA-CPhysician Assistant1760628465
  28. Carol O'Rourke, SLPSpeech-Language Pathologist1487953006
  29. Nancy O'Rourke, NPFamily Nurse Practitioner1780642686
  30. Sophia O'Rourke, MDPediatrics Physician1154987949
  31. Aidan O'Shea, MDStudent in an Organized Health Care Education/Training Program1588462642
  32. Riley O'Shea, LMSWSocial Worker1467316307
  33. Patricia O'Shea-Fournier, RNSchool Registered Nurse1013292812
  34. Morgan O'Shell, PAPhysician Assistant1578188629
  35. Cayla O'SullivanAdult Health Nurse Practitioner1609597137
  36. Joseph O'SullivanCounselor1992213904
  37. Melissa O'Sullivan, N PAdult Health Nurse Practitioner1083752034
  38. Erin O'Toole, MSMental Health Counselor1497224877
  39. Laurie O'Toole, PAPhysician Assistant1316024490
  40. Margaret Oakden, PTPhysical Therapist1356402036
  41. Crystal Oakes, LMSWSocial Worker1861083735
  42. John OakesCase Manager/Care Coordinator1700268810
  43. Leona Oakes, PH.D.Psychologist1821579350
  44. Matthew Oakes, MS ED., ATC-LAthletic Trainer1548591795
  45. Kala Oaks, PEER SPECIALISTPeer Specialist1346806049
  46. Patricia Oates, RPA-CPhysician Assistant1649583097
  47. Adel Obaji, M.D.Pulmonary Disease Physician1124073127
  48. German Obando, DDSStudent in an Organized Health Care Education/Training Program1023579117
  49. Ashley Oberg, OTR/LOccupational Therapist1841524113
  50. Thecla Obi, NPFamily Nurse Practitioner1679801633

The largest New York cities

  1. New York98,468
  2. Brooklyn64,057
  3. Bronx32,017
  4. Buffalo13,287
  5. Staten Island12,351

All of New York →

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.