NPPES file of Aug 9, 2026

Doctors and health care providers in New Haven, CT

9,793 individual NPPES records list a practice address in New Haven, 1st of 200 Connecticut cities. The largest group is students in training: 1,845, 19% of the city's records, against 6% across Connecticut. Page 134 of 196.

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

The 8 largest groups in New Haven

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

New Haven in Connecticut

  • Rank in Connecticut1st of 200 cities by records
  • Share of the state11.6% of Connecticut's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27.9% of all records
  • Students in training rank1st of the 10 Connecticut cities with the most

Compared with Connecticut as a whole, New Haven has 4.2× the state's share of pharmacist clinician (phc)/ clinical pharmacy specialist records and 0.36× its share of mental health counselor records.

Providers in New Haven, alphabetically

  1. Luisa Ortiz, MDPediatrics Physician1316683725
  2. Mark Ortiz, PA-CNeurology Physician1740796465
  3. Victoria Ortiz, MACounselor1275092017
  4. Claudia Ortiz-Lopez, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1720867252
  5. Susan Ortoleva, CNMAdvanced Practice Midwife1720162761
  6. Helen OrtonPhysician Assistant1124944806
  7. Landon OsbornClinical Social Worker1497692313
  8. Rachel Osborn, M.D.Pediatrics Physician1023252715
  9. Angela Osei-Bonsu, M.D.Student in an Organized Health Care Education/Training Program1629707054
  10. Wendy Osei-BonsuStudent in an Organized Health Care Education/Training Program1134816200
  11. Linda OshinStudent in an Organized Health Care Education/Training Program1326508425
  12. John Oshlick, M.D.Hospitalist Physician1942483888
  13. Samuelson Osifo, MBBSStudent in an Organized Health Care Education/Training Program1194413195
  14. Samia Osman, MD, MPPPsychiatry Physician1770012346
  15. Lais Osmani, MDRheumatology Physician1932586062
  16. Brian OsorioStudent in an Organized Health Care Education/Training Program1871284182
  17. Rafael Ospino, MDStudent in an Organized Health Care Education/Training Program1801489430
  18. Chanel Ostasiewski, RNRegistered Nurse1306359773
  19. Sharon Ostfeld-JohnsPediatrics Physician1588081459
  20. Anna Ostrovskaya, M. D.Psychiatry Physician1073556841
  21. John Ostrowski, MDStudent in an Organized Health Care Education/Training Program1417893694
  22. Nurudeen Osumah, MD, MBAEmergency Medicine Physician1780324327
  23. Nazokat Otajonova, MDStudent in an Organized Health Care Education/Training Program1063108520
  24. Osarugue OtasowieGerontology Nurse Practitioner1699363564
  25. Leticia Otchere-Darko, M.D.Anesthesiology Physician1245437789
  26. Olubunmi Otolorin, M.D.Hospitalist Physician1336208677
  27. Susan Ottenheimer, LCSWClinical Social Worker1336254572
  28. Marwa OudahPulmonary Disease Physician1053804518
  29. Gregory Ouellet, MDGeriatric Medicine (Internal Medicine) Physician1851666085
  30. Jennifer Ouellet, MDGeriatric Medicine (Internal Medicine) Physician1184999229
  31. Maggie Oumov, RNCritical Care Medicine Registered Nurse1275483877
  32. Shavonne OvertonFamily Nurse Practitioner1922713254
  33. Brittany Owen, RN, BSNCertified Registered Nurse Anesthetist1548746217
  34. Rena Owens, LADCAddiction (Substance Use Disorder) Counselor1548695703
  35. Marissa Owsianik, PH.D.Psychologist1730528431
  36. Matilda Owuo, DOStudent in an Organized Health Care Education/Training Program1366236101
  37. Daniel OwusuStudent in an Organized Health Care Education/Training Program1447001599
  38. Kent Owusu, PHARMDClinical Pharmacology Physician1083271381
  39. Zeynep Ozay, MDStudent in an Organized Health Care Education/Training Program1033055868
  40. Elise OzbardakciClinical Child & Adolescent Psychologist1699516492
  41. Mehmet Ozcan, MDAnesthesiology Physician1215905963
  42. Mukadder Ozcan, MDAnesthesiology Physician1275894768
  43. Safinaz Ozcan, MDMaternal & Fetal Medicine Physician1780614834
  44. Andrea Ozment, RN, MSNRegistered Nurse1295001899
  45. Burhan Ozturk, MDAnesthesiology Physician1124602834
  46. Manuel Pabom, PA-CMedical Physician Assistant1528509395
  47. Jolanta PachStudent in an Organized Health Care Education/Training Program1982303129
  48. John PachankisClinical Psychologist1326496084
  49. Janelle Pacini, P.A.Medical Physician Assistant1891812004
  50. Divya Padmanabhan Menon, MDPulmonary Disease Physician1700235090

The largest Connecticut cities

  1. Hartford6,317
  2. Waterbury3,148
  3. Farmington2,993
  4. Bridgeport2,980
  5. Stamford2,774

All of Connecticut →

How to read this directory

New Haven, Connecticut appears in the CMS National Plan and Provider Enumeration System with 9,793 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 New Haven - 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 New Haven 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 New Haven is weighted toward Student in an Organized Health Care Education/Training Program (1,845 clinicians, followed by Clinical Social Worker with 556 and Internal Medicine Physician with 329). 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 Connecticut's population, New Haven reports roughly 270.7 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 Connecticut's most common specialties, Physical Therapist is the most prominent one with no provider currently listing a New Haven practice address, a coverage gap New Haven patients typically fill by traveling to a larger nearby hub.

For New Haven 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 New Haven, CT?

There are 9,793 registered healthcare providers in New Haven, CT, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in New Haven?

The most common specialties in New Haven are Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Internal Medicine Physician, Psychiatry Physician, Pharmacist. Student in an Organized Health Care Education/Training Program has the most providers with 1,845.

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.