NPPES file of Aug 9, 2026

Doctors and health care providers in Boston, MA

41,865 individual NPPES records list a practice address in Boston, 1st of 406 Massachusetts cities. The largest group is students in training: 6,126, 15% of the city's records, against 5% across Massachusetts. Page 406 of 838.

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

The 8 largest groups in Boston

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

Boston in Massachusetts

  • Rank in Massachusetts1st of 406 cities by records
  • Share of the state19.1% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.7% of all records
  • Students in training rank1st of the 10 Massachusetts cities with the most

Compared with Massachusetts as a whole, Boston has 2.9× the state's share of student in an organized health care education/training program records and 0.23× its share of mental health counselor records.

Providers in Boston, alphabetically

  1. Garen Kroshian, MDStudent in an Organized Health Care Education/Training Program1104402510
  2. Daniela Kroshinsky, M.D., M.P.H.Dermatology Physician1346372331
  3. Joan Kross, MDInternal Medicine Physician1306953328
  4. Anna Krotinger, MDStudent in an Organized Health Care Education/Training Program1205621588
  5. Rachel Krozy, NPNurse Practitioner1164161196
  6. Taylor Krozy, PA-CPhysician Assistant1720710718
  7. Mercy Krua, RNGeneral Practice Registered Nurse1922507433
  8. Elizabeth Krueger, NPFamily Nurse Practitioner1760784193
  9. Heidi Krueger, LICSWClinical Social Worker1922585512
  10. Mason Krueger, M.S.Student in an Organized Health Care Education/Training Program1427905041
  11. Meghan KruegerRegistered Nurse1487194528
  12. Guy KrugClinical Social Worker1205762846
  13. Kathryn Krug, NPAcute Care Nurse Practitioner1083334403
  14. Cristian Maikel KrugerStudent in an Organized Health Care Education/Training Program1720930357
  15. Jeffrey KrugerStudent in an Organized Health Care Education/Training Program1174324487
  16. Joshua Kruger, MD, PHDOphthalmology Physician1023390192
  17. Nils Kruger, MDResearch Study Specialist1245190081
  18. Samantha Kruger, LCSWSocial Worker1407457336
  19. Inna Kruk, M.D.Psychiatry Physician1952416844
  20. Christopher Krukonis, PA-CPhysician Assistant1871095018
  21. Aaron Krumheuer, MDEmergency Medicine Physician1831711571
  22. Ilana Krumm, MDCritical Care Medicine (Internal Medicine) Physician1356875405
  23. Molly Krumpelbeck, DPTPhysical Therapist1295031615
  24. Martin Krupa, M.D.Diagnostic Radiology Physician1245657436
  25. Michael KrupaCounselor1164062519
  26. Susan Krupnick, NPPsychiatric/Mental Health Nurse Practitioner1295863769
  27. Sierra Kruser, PA-CPhysician Assistant1164112710
  28. Jonathan Kruskal, MD PHDDiagnostic Radiology Physician1952357006
  29. Alison Krustapentus, FNPFamily Nurse Practitioner1497272413
  30. Julie Krutiak, MDInternal Medicine Physician1487677043
  31. Paige KruzaCounselor1134265010
  32. Alex Kryger, DDS, MDDentist1407440043
  33. Melissa Krystel-Whittemore, MDAnatomic Pathology & Clinical Pathology Physician1801248190
  34. James Kryzanski, MDNeurological Surgery Physician1730107467
  35. Cindy Ku, MDAnesthesiology Physician1043451057
  36. Chen-Hsiang Kuan, MD, PHDPlastic and Reconstructive Surgery Physician1275424335
  37. Krystal KuanRegistered Nurse1417835208
  38. Jonathan Kuang, MBBSGastroenterology Physician1710762265
  39. Alyssa KubaNurse Practitioner1669084141
  40. Maria KubaAnatomic Pathology Physician1497198428
  41. Karl Kuban, MDNeurology with Special Qualifications in Child Neurology Physician1871582627
  42. Boateng KubiStudent in an Organized Health Care Education/Training Program1205306073
  43. David Kubiak, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1477818094
  44. Sarah Kubiak, PHARMDPharmacist1801583398
  45. Ivy KublinSpeech-Language Pathologist1376703587
  46. Jeffrey Kublin, ODOptometrist1083630578
  47. Sarah Kucala, ANP-BCAdult Health Nurse Practitioner1811226798
  48. Jan KuceraNeurology Physician1174638407
  49. Angelica Kucha, CPNP-PC, NPPediatric Nurse Practitioner1548072648
  50. Emily KucherCertified Registered Nurse Anesthetist1063027084

The largest Massachusetts cities

  1. Worcester13,166
  2. Springfield8,553
  3. Cambridge5,145
  4. Brockton4,287
  5. Milford3,459

All of Massachusetts →

How to read this directory

Boston, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 41,865 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 Boston - 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 Boston 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 Boston is weighted toward Student in an Organized Health Care Education/Training Program (6,126 clinicians, followed by Internal Medicine Physician with 2,320 and Clinical Social Worker with 1,906). 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 Massachusetts's population, Boston reports roughly 598 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 Massachusetts's most common specialties, Counselor is the most prominent one with no provider currently listing a Boston practice address, a coverage gap Boston patients typically fill by traveling to a larger nearby hub.

For Boston 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 Boston, MA?

There are 41,865 registered healthcare providers in Boston, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Boston?

The most common specialties in Boston are Student in an Organized Health Care Education/Training Program, Internal Medicine Physician, Clinical Social Worker, Physician Assistant, Anesthesiology Physician. Student in an Organized Health Care Education/Training Program has the most providers with 6,126.

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.