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 39 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. Sarah HappelMarriage & Family Therapist1467763052
  2. Chayenne HaragushikuRegistered Nurse1912478967
  3. Beth Hardiman, MDSpecialist1104917533
  4. Roberta Harding Wrubel, RNCSAdult Psychiatric/Mental Health Registered Nurse1508811407
  5. Susan Hardt, MDGeriatric Medicine (Internal Medicine) Physician1265507412
  6. Harold Hardy, LPNLicensed Practical Nurse1174085609
  7. Jaime Harford Rodriguez, LPNLicensed Practical Nurse1437867843
  8. Jill Harkaway, ED.D.Psychologist1154475291
  9. Brooke Harlow, PHARMDCardiology Pharmacist1982585477
  10. Jasen Harlow, LICSWClinical Social Worker1619098001
  11. Kathryn HarlukowiczSpeech-Language Pathologist1124554704
  12. Kathleen Forest Harney, M.D.Obstetrics & Gynecology Physician1003926411
  13. Patricia Harney, PHDClinical Psychologist1386607570
  14. Gregory Harrington, M.D.Diagnostic Radiology Physician1275591679
  15. Christina HarrisSpeech-Language Pathologist1144821349
  16. Emily Harris, MDInternal Medicine Physician1386220390
  17. Jamila Harris, MDPsychiatry Physician1801195334
  18. Kristin Harris, CNMAdvanced Practice Midwife1992875793
  19. Lorraine HarrisCounselor1801454152
  20. Treniece HarrisClinical Child & Adolescent Psychologist1477610038
  21. Alexandra Harrison, MDChild & Adolescent Psychiatry Physician1568446706
  22. Terence Harrist, MDSpecialist1679576185
  23. Jennifer Hart, LMHCMental Health Counselor1528109501
  24. Sarah Hart, DMDGeneral Practice Dentistry1871615963
  25. Kristina Harter, PH.D.Clinical Psychologist1871631325
  26. Brittany Hartman, M.S.Mental Health Counselor1851557789
  27. Lawrence Hartmann, M.D.Psychiatry Physician1386775229
  28. Elizabeth Hartnett, RD, LDRegistered Dietitian1386295509
  29. Megan HartnettStudent in an Organized Health Care Education/Training Program1073484580
  30. Byron Hartunian, M.D.Orthopaedic Surgery Physician1700986122
  31. Maureen Harty, LICSWClinical Social Worker1588148746
  32. Judith Harwood, LICSWClinical Social Worker1063542819
  33. Taymour Hashemzadeh, MDStudent in an Organized Health Care Education/Training Program1790420669
  34. Susanne Haskell, PSY.D.Clinical Psychologist1558419747
  35. Adar Hassan, PHARMDPharmacist1700752516
  36. Andrea Hasselbacher, PHARMDPharmacotherapy Pharmacist1336494749
  37. Maureen Hassett, RNRegistered Nurse1104050822
  38. Mohamed HassounSocial Worker1477936938
  39. Bruce Hassuk, M.D.Child & Adolescent Psychiatry Physician1669419255
  40. Stephanie Hastings, DOInternal Medicine Physician1467911677
  41. Joshua Hatcher-Mullins, NPPsychiatric/Mental Health Nurse Practitioner1407398142
  42. Charles Hatem, MDInternal Medicine Physician1528065877
  43. Rachel Hathaway, M.D.Hospitalist Physician1629339775
  44. Stefanie Haug, LICSWClinical Social Worker1265624670
  45. David Hauser, ODOptometrist1831140102
  46. Rory HauserLow-Risk Neonatal Registered Nurse1003618687
  47. Jonathan Hausmann, MDRheumatology Physician1932367562
  48. Nancy Hawley, LICSWClinical Social Worker1437202652
  49. Jennifer Hayden, APRNMidwife1619697091
  50. Sabrina Hayden, PMHNPPsychiatric/Mental Health Nurse Practitioner1215885066

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.