NPPES file of Aug 9, 2026

Doctors and health care providers in Cambridge, MA

5,145 individual NPPES records list a practice address in Cambridge, 4th of 406 Massachusetts cities. The largest group is clinical social worker: 545, 11% of the city's records, against 8% across Massachusetts. Page 45 of 103.

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

The 8 largest groups in Cambridge

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

Cambridge in Massachusetts

  • Rank in Massachusetts4th of 406 cities by records
  • Share of the state2.3% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups22.6% of all records
  • Clinical Social Worker rank4th of the 10 Massachusetts cities with the most

Compared with Massachusetts as a whole, Cambridge has 4.1× the state's share of advanced practice midwife records and 0.56× its share of speech-language pathologist records.

Providers in Cambridge, alphabetically

  1. Ellen Jean-Louis, RNAmbulatory Care Registered Nurse1770165797
  2. Panosky Jean-Louis, LPNLicensed Practical Nurse1730744343
  3. Sheila Jeffrey, RNRegistered Nurse1538872973
  4. Beatrice Jegalian, MDPediatrics Physician1619930401
  5. Anne Jeka, LIC. AC.Acupuncturist1194972430
  6. Jonathan Jenkins, MAStudent in an Organized Health Care Education/Training Program1942569892
  7. Neil Jenkins, MDPreventive Medicine/Occupational Environmental Medicine Physician1598080814
  8. Peter Jenney, MDPsychiatry Physician1205873577
  9. Stephen Jensen, RNRegistered Nurse1558124198
  10. Matthew Jerram, PH.D.Clinical Psychologist1871549980
  11. Alexis Jette, MSW, LICSWClinical Social Worker1275181950
  12. Sheila Jewett, MSW LICSWClinical Social Worker1710973144
  13. Denise JimenezStudent in an Organized Health Care Education/Training Program1770401044
  14. Yan Ping Jin, LIC. AC.Acupuncturist1306961289
  15. Cynthia Jirak, LICSWClinical Social Worker1679606669
  16. Rosa JoaquinRegistered Nurse1881146405
  17. Alyssa Johnsen, MDInternal Medicine Physician1326051368
  18. David Johnson, RN/NPPsychiatric/Mental Health Nurse Practitioner1821373671
  19. Gabrielle JohnsonClinical Social Worker1760269286
  20. Glenn Johnson, PH.D.Clinical Psychologist1609909829
  21. Henry Johnson, RNRegistered Nurse1861830994
  22. Jennifer Johnson, CNMAdvanced Practice Midwife1932649555
  23. Jessica Johnson, MAMental Health Counselor1619490190
  24. Kimberly Johnson, LPNAmbulatory Care Registered Nurse1629630165
  25. Mark Johnson, MDInternal Medicine Physician1316436793
  26. Matthew Johnson, LDOOptician1144612334
  27. Nancy Johnson, LMHCMental Health Counselor1851448062
  28. Nia Johnson, MSCCounselor1346193869
  29. Sarah Johnson, LIC. AC., DIPL. O.M.Acupuncturist1972659274
  30. Sarah Johnson, M.D.Internal Medicine Physician1902288780
  31. Jennifer Johnston, LMHC, PHDClinical Psychologist1184814634
  32. Maureen Johnston, NURSE PRACTITIONERPrimary Care Nurse Practitioner1699104828
  33. Shadi Johnston, LMHCMental Health Counselor1629842398
  34. Henry JohnstoneSocial Worker1376380352
  35. Mary JohnstonePhysician Assistant1639810807
  36. Ruth Jolicoeur, BSNRegistered Nurse1386792125
  37. Janty JonahBehavior Analyst1609745207
  38. Shenika JonathasStudent in an Organized Health Care Education/Training Program1962376459
  39. Alexis Jones, PHDCounseling Psychologist1386446318
  40. Amy Jones, LICSWClinical Social Worker1225275050
  41. Brittney Jones, PSYDPsychologist1760010318
  42. David JonesPsychiatry Physician1609933159
  43. Erica JonesSocial Worker1992694798
  44. Grant JonesPsychologist1881314896
  45. Jeffrey Jones, M.D.Hematology & Oncology Physician1720098056
  46. Katie JonesClinical Social Worker1164545372
  47. Susannah JonesClinical Social Worker1740069145
  48. Nehemie Jones-Swaby, LCSWSocial Worker1932754405
  49. Brian Joo, M.D.Diagnostic Radiology Physician1568813350
  50. Mackenzie JordanClinical Psychologist1366089278

The largest Massachusetts cities

  1. Boston41,865
  2. Worcester13,166
  3. Springfield8,553
  4. Brockton4,287
  5. Milford3,459

All of Massachusetts →

How to read this directory

Cambridge, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 5,145 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 Cambridge - 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 Cambridge 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 Cambridge is weighted toward Clinical Social Worker (545 clinicians, followed by Student in an Organized Health Care Education/Training Program with 319 and Internal Medicine Physician with 300). 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, Cambridge reports roughly 73.5 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, Behavior Technician is the most prominent one with no provider currently listing a Cambridge practice address, a coverage gap Cambridge patients typically fill by traveling to a larger nearby hub.

For Cambridge 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 Cambridge, MA?

There are 5,145 registered healthcare providers in Cambridge, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Cambridge?

The most common specialties in Cambridge are Clinical Social Worker, Student in an Organized Health Care Education/Training Program, Internal Medicine Physician, Mental Health Counselor, Social Worker. Clinical Social Worker has the most providers with 545.

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.