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 114 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. Samantha Mashaw, LMSWClinical Social Worker1407564594
  2. Robin Masheb, PH.D.Clinical Psychologist1578905717
  3. Urszula Masiukiewicz, MDEndocrinology, Diabetes & Metabolism Physician1366413007
  4. Barbara Mason, M.D.Psychiatry Physician1780845495
  5. Kate MasonStudent in an Organized Health Care Education/Training Program1790025054
  6. Kathryn Mason, NPFamily Nurse Practitioner1316388192
  7. Lea Mason, MDStudent in an Organized Health Care Education/Training Program1073440905
  8. Patricia Mason, APRNAdult Health Nurse Practitioner1386876142
  9. Akailah Mason-Otey, MDStudent in an Organized Health Care Education/Training Program1225771611
  10. Muhammad Masood, MDHospitalist Physician1316526965
  11. Narmeen Masood, MBBSStudent in an Organized Health Care Education/Training Program1619549458
  12. Amir Masoud, M.D.Gastroenterology Physician1083878821
  13. Stephanie Massaro, M.D., M.P.H.Pediatric Hematology & Oncology Physician1851534481
  14. Erica Massimino, LCSWClinical Social Worker1912399635
  15. Taylor Mastin, PH.D.Clinical Psychologist1396985792
  16. Lynn Mastrianni, NPGerontology Nurse Practitioner1205177672
  17. Lauren Mastriano, PA-CPhysician Assistant1881122083
  18. Lisa Mastroianni, M.S. R.DRegistered Dietitian1457596496
  19. Katia Mata MartinezBehavior Technician1396316386
  20. Jason Matakas, MDDiagnostic Radiology Physician1598323784
  21. Sayed MatarStudent in an Organized Health Care Education/Training Program1376396010
  22. Andrea Matayoshi Perez, M.DPsychiatry Physician1508554502
  23. Rusudan MatcharashviliHospitalist Physician1992357206
  24. Veronica Matei, MDAnesthesiology Physician1053588905
  25. Robert Matera, MDHematology & Oncology Physician1366971640
  26. Mehr Mathew, MDStudent in an Organized Health Care Education/Training Program1972187854
  27. Pawan Mathew, MDStudent in an Organized Health Care Education/Training Program1497384671
  28. Rachael Mathew, MDStudent in an Organized Health Care Education/Training Program1851237507
  29. Tiara Mathews, RNRegistered Nurse1811674526
  30. Walter Mathis, M.D.Psychiatry Physician1083975577
  31. Anastasia MatijcioPhysician Assistant1548756679
  32. Charles Matouk, M.D.Neurological Surgery Physician1053696187
  33. Spencer Matson, MDStudent in an Organized Health Care Education/Training Program1194468520
  34. Richard Matthay, MDPulmonary Disease Physician1992788061
  35. Lynn MatthewsInfectious Disease Physician1316016439
  36. Jordan Mattingly, MPH, MS, CGCGenetic Counselor (M.S.)1568145126
  37. Vanessa Mattison, RNRegistered Nurse1437566817
  38. Austin Mattox, MD, PHDStudent in an Organized Health Care Education/Training Program1598188914
  39. Richard Mattson, MDNeurology Physician1578536538
  40. Christina Matulis, MDEmergency Medicine Physician1467943563
  41. Irene Maturo, RDHDental Hygienist1649626300
  42. Ariana Matz, MDUrology Physician1457939845
  43. Ellice Matza, MSWClinical Social Worker1962600973
  44. Brenda Matzkin, PTSpecialist1356582514
  45. Tian MauerStudent in an Organized Health Care Education/Training Program1508447384
  46. Ashly MaughanInfectious Disease Physician1194158667
  47. Maria Mauldon, APRNCommunity Health Nurse Practitioner1750485801
  48. Jennifer MauleGerontology Nurse Practitioner1821967423
  49. Christopher Maulion, M.D.Advanced Heart Failure and Transplant Cardiology Physician1558622340
  50. Adrian Maung, MDSurgery Physician1043292147

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.