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 38 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. Shlomit Halachmi, M.D. PH.D.Dermatology Physician1689789646
  2. Ahmad Halawi, MDStudent in an Organized Health Care Education/Training Program1730882044
  3. Amy Hale, PH.D.Clinical Psychologist1811359029
  4. Julia Hale, LICSWClinical Social Worker1457665366
  5. Janet Hales, REGISTERED NURSEAdult Psychiatric/Mental Health Registered Nurse1831332220
  6. Ellen Haley, LICSWClinical Social Worker1033200498
  7. Marie Haley, MDInternal Medicine Physician1659473346
  8. Susan Haley, M.S., CCC-SLP, ATPSpeech-Language Pathologist1023497450
  9. Carol Hall, CRNAAnesthesiology Physician1487825584
  10. Kristin Hall, LMHCMental Health Counselor1508032145
  11. Chiara Haller, PHD, LP, HSPClinical Neuropsychologist1336507656
  12. Justin Halloran, MDStudent in an Organized Health Care Education/Training Program1386384535
  13. Shayna Halloran, PHARMDPharmacist1558966374
  14. Shakira HallowayHealth Educator1164068557
  15. Meghan Hallowell, LMTMassage Therapist1407094923
  16. Sue Hallowell, LICSWClinical Social Worker1427115450
  17. Barbara HalpennySocial Worker1215658588
  18. Lucila Halperin, PSY.D.Clinical Psychologist1548419823
  19. Silvia Halperin, PH.D.Psychologist1679630230
  20. Elizabeth Halstead, M.A.Mental Health Counselor1699631119
  21. Anna Ham, DOInternal Medicine Physician1740355981
  22. Brenda Hamady, MSW, LICSW, BCDClinical Social Worker1184775165
  23. Rola Hamam, MDSpecialist1679773931
  24. Melissa Hamblet, RNRegistered Nurse1083549414
  25. James Hamblin, M.D.Internal Medicine Physician1245467984
  26. Brian Hamilton, M.D.Pediatrics Physician1083743967
  27. John Hamilton, M.D.,M.SC.Psychiatry Physician1548334147
  28. Cheryl Hamlin, MDObstetrics & Gynecology Physician1477522886
  29. Mary Hammar, MPH, RD, LDNRegistered Dietitian1417532698
  30. Abigail HammondSocial Worker1285918615
  31. Nathan HammondStudent in an Organized Health Care Education/Training Program1184515900
  32. Tanner HammondSocial Worker1073291936
  33. Omar Hamza, MDStudent in an Organized Health Care Education/Training Program1548029192
  34. Crystal Han, M.D.Child & Adolescent Psychiatry Physician1922539352
  35. Sunny HanInternal Medicine Physician1710563341
  36. Katherine Hanaway, MDObstetrics & Gynecology Physician1457375727
  37. Todd Handel, OPTICIANOptician1629425632
  38. James Handshaw, PHARMDAmbulatory Care Pharmacist1902315211
  39. Maya Hanelin, LICSWClinical Social Worker1518932656
  40. Claire Hanlon, PT, DPTPhysical Therapist1881486942
  41. Kenneth HanlonPharmacist1205118676
  42. Martin HanlonPeer Specialist1275496069
  43. Marina HannaPediatric Dentistry1932804028
  44. Leah Hannon, PA-CPhysician Assistant1518754886
  45. Laurie Hanrahan, CPMMidwife1720152606
  46. Anshika Hansen-Verma, LCSWClinical Social Worker1689082430
  47. Christian HansonMental Health Counselor1023836368
  48. Emily Hanson, PA-CMedical Physician Assistant1760876437
  49. Jenna Hanson, PSY.D.Psychologist1952731697
  50. Katharine Hanson, M.D.Psychiatry Physician1891838363

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.