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 404 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. Dennis Kramer, M.D.Sports Medicine (Orthopaedic Surgery) Physician1770541690
  2. Elizabeth Kramer, PA-CPhysician Assistant1336354695
  3. Josie Kramer, RNAmbulatory Care Registered Nurse1245729763
  4. Maryjo Kramer, MDAnesthesiology Physician1689135105
  5. Megan Kramer, FNP-CNurse Practitioner1174095046
  6. Rebecca Kramer, PHDClinical Psychologist1164813713
  7. Jessica Krane, MS,RDCounselor1629904008
  8. Sarah Krantz, MDObstetrics & Gynecology Physician1164834875
  9. Marya KrasikPsychiatric/Mental Health Nurse Practitioner1598477960
  10. Margaret KrasneHospice and Palliative Medicine (Internal Medicine) Physician1063071348
  11. Carolyn Krasner, MDHematology (Internal Medicine) Physician1497767479
  12. Helen Krasnow, NPPsychiatric/Mental Health Nurse Practitioner1518278134
  13. David Krass, DMDDentist1578049144
  14. Radomir Kratchmarov, MD, PHDInternal Medicine Physician1316407919
  15. Christina Kratlian, MDPediatrics Physician1952893679
  16. Taylor Kratochvil, MDPediatrics Physician1922758465
  17. Johannes Kratz, MDSurgery Physician1619004058
  18. Alyssa KratzeClinical Social Worker1356664635
  19. Ashley Krause, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1659683316
  20. Daniela Krause, MD, PHDAnatomic Pathology & Clinical Pathology Physician1447386289
  21. Diane Krause, MD, MPHInternal Medicine Physician1811004963
  22. Melanie Krause, M.A., CCC-SLPSpeech-Language Pathologist1194273557
  23. Baruch Krauss, MD, EDMPediatric Emergency Medicine (Pediatrics) Physician1003865270
  24. Mandy Krauthamer, M.DInternal Medicine Physician1174670954
  25. Kimberly Krautkramer, MDSurgery Physician1851978753
  26. Amy Kravitz, PA-CPhysician Assistant1477838084
  27. Alixandra KrawckeSports Dietetics Nutrition Registered Dietitian1275421687
  28. Anna Krawisz, M.D.Cardiovascular Disease Physician1477986222
  29. Brooke Krbec, DOPediatrics Physician1568824696
  30. Betty Krechmer, PA-CPhysician Assistant1578967436
  31. Bernard Kreger, M.D.Internal Medicine Physician1417985953
  32. Ellen Kreida, LICSW, MPHClinical Social Worker1194188177
  33. Jordan Kreidberg, M.D.Pediatrics Physician1083685820
  34. Raymond Kreienkamp, MD, PHDPediatric Endocrinology Physician1205496643
  35. Elana Kreiger-BensonAnesthesiology Physician1922749589
  36. Vanessa KreisBehavior Technician1144793845
  37. Jill Krejdovsky, MSGenetic Counselor (M.S.)1184633026
  38. Anne Krekis, NPFamily Nurse Practitioner1184683997
  39. Jessica Kremen, M.D.Pediatric Endocrinology Physician1497015440
  40. Kristin KremerDentist1154766830
  41. Leila Kremsky, LMHCMental Health Counselor1700238409
  42. Maxine Krengel, PHDClinical Neuropsychologist1538121686
  43. Laurence Krenis, MDAnesthesiology Physician1083670236
  44. Lindsey Krenzel, LICSW, PHDClinical Social Worker1821520354
  45. Jennifer Kreshak, MDOrthopaedic Surgery Physician1427213222
  46. Jessica Kreshover, MD, MSUrology Physician1346415916
  47. Antonia Kreso, MDSurgery Physician1225489115
  48. Herbert Kressel, M.D.Diagnostic Radiology Physician1780639310
  49. Christopher KreutzerOccupational Therapist1700136793
  50. Erin Krey, MSPTPhysical Therapist1942331574

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.