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 42 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. Shannon Holliday, RNRegistered Nurse1437667185
  2. Kathleen Holmes, R.N.Registered Nurse1235574492
  3. Molly Holmes, RN, BSNRegistered Nurse1386117695
  4. Sarah HolmesSocial Worker1912660366
  5. Godtfred Holmvang, MDCardiovascular Disease Physician1922098474
  6. Kelly HoltMental Health Counselor1689222796
  7. Shirli Holtzman, CD(DONA), HBCEDoula1699083477
  8. Erin Holyoke, MS, OTR/LOccupational Therapist1073086088
  9. Susan Holzman, MDPediatrics Physician1609980952
  10. Todd Holzman, MDPsychiatry Physician1467490318
  11. Charles Homer, M.D.Pediatrics Physician1336260587
  12. Danielle Homere, DNP FNP-BCWomen's Health Nurse Practitioner1043172539
  13. Ji Yeon HongMental Health Counselor1801026109
  14. Mina Hong, PHARM DPharmacist1346740446
  15. Sung Hong, D.M.D.Dentist1700265683
  16. Meghan Honigman, M.S.WClinical Social Worker1679753008
  17. Jill Hooley, D.PHIL.Clinical Psychologist1134610751
  18. Susan Hooper, LICSWSocial Worker1245715606
  19. Caroline Hootstein, MS, RD, LDN, CNSCRegistered Dietitian1205622784
  20. Lianne HopeSocial Worker1639518350
  21. Elizabeth Hopper, PH.D.Clinical Psychologist1679505143
  22. Ruben Hopwood, PHD, LPHealth Service Psychologist1972859148
  23. Sara Horne, MS, CCC-SLPSpeech-Language Pathologist1811474844
  24. Alison Horowitz, LICSWClinical Social Worker1114439601
  25. John Horras, MSWClinical Social Worker1013496389
  26. Ann Horwitz, ED.D.Counseling Psychologist1467548446
  27. Amy Hou, M.D.Internal Medicine Physician1417396490
  28. Edward Hou, DMDGeneral Practice Dentistry1659120681
  29. Alexandra Houck, MDFamily Medicine Physician1053339705
  30. Ardrianna HowardStudent in an Organized Health Care Education/Training Program1528855673
  31. Neal Howard, MSW, LICSWClinical Social Worker1285861914
  32. Judith HoweSocial Worker1407913999
  33. Kristen Howe, LMTMassage Therapist1396983813
  34. Erin Howell, LMSWClinical Social Worker1093915498
  35. Margaret Howes, FPMHNPPsychiatric/Mental Health Nurse Practitioner1245462191
  36. Evangeline Hoyer, LMT, RYTMassage Therapist1881836062
  37. Xiaolu Hsi, PH.DClinical Psychologist1316982002
  38. Aimee Hsieh, LCSWClinical Social Worker1659844868
  39. Celina HsiehStudent in an Organized Health Care Education/Training Program1225787039
  40. Elaine Hsieh, M.D.Internal Medicine Physician1386871317
  41. Frank Hsu, MDMedical Oncology Physician1104039221
  42. Whitney Hsu, PHAMDPharmacist1730783127
  43. Judy Hu, M.A.Mental Health Counselor1265578470
  44. Edwin Huang, MDObstetrics & Gynecology Physician1457334963
  45. Hsiang Huang, M.D.Psychosomatic Medicine Physician1649386111
  46. Jay Huang, R.PH.Pharmacist1689713992
  47. Blanca HuariClinical Social Worker1013687284
  48. Mary Hubbard, APRNPrimary Care Nurse Practitioner1154496313
  49. David Hudacek, MDInternal Medicine Physician1992707269
  50. Adrianna Hughes, RNRegistered Nurse1255202610

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.