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 78 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. Angel Reed, MSW, LCSWClinical Social Worker1639793128
  2. James ReedStudent in an Organized Health Care Education/Training Program1710293378
  3. Nancy Reed, MSWClinical Social Worker1760556054
  4. Karen Reeves, M.D.Psychiatry Physician1992833800
  5. Angela Rega, PHARMDPharmacist1669754008
  6. Katherine Regal, LICSWClinical Social Worker1053552422
  7. Dawn Regan, BSNRegistered Nurse1417838871
  8. Lucy Regan, NPNurse Practitioner1811916182
  9. Mary Regan, PHARMD, BCPSPharmacotherapy Pharmacist1285826305
  10. Caroline Regelous, CNMAdvanced Practice Midwife1245822352
  11. Heidi Rehm, PHD, FACMGPh.D. Medical Genetics1689635021
  12. Kenneth Reich, ED.D.Clinical Psychologist1477691087
  13. Pamela Reich, PTPhysical Therapist1548592108
  14. Lin Reicher, ED.DClinical Psychologist1831243302
  15. Ralph Reichle, M.D.Diagnostic Radiology Physician1124190905
  16. Garnet Reid, DMDGeneral Practice Dentistry1811036148
  17. Maureen Reid-Cunningham, LICSWClinical Social Worker1023024049
  18. Beverly Reifman, LICSWClinical Social Worker1598705527
  19. Alexandra ReillySpeech-Language Pathologist1083429112
  20. Brittni ReillySocial Worker1902239502
  21. Richard Reilly, PHDPsychologist1124185624
  22. Fabian Reimold, M.D., PH. D.Cardiovascular Disease Physician1609216571
  23. Sheila Reindl, ED.D.Clinical Psychologist1700965126
  24. Marshall Reiner, M.D.Psychiatry Physician1760491773
  25. Rick Reinkraut, ED.D.Psychologist1780719401
  26. Wendy Reiser, D.O.Psychiatry Physician1912224346
  27. Kathellen Reist, CNMAdvanced Practice Midwife1174676605
  28. Charyti Reiter, LICSWClinical Social Worker1114486347
  29. Daphney RemyLicensed Practical Nurse1376882969
  30. Peterson Remy, FNP-BCFamily Nurse Practitioner1972059665
  31. Christopher RenfrowAcupuncturist1598040081
  32. M. Suzanne Renna, ED.D., MHCMental Health Counselor1841595154
  33. Carol Renneburg, MDStudent in an Organized Health Care Education/Training Program1750021762
  34. Allison Rense, DPTPhysical Therapist1184484370
  35. Yisshelen Renteria SalazarRegistered Nurse1376374603
  36. Jennifer Retsinas, MDObstetrics & Gynecology Physician1639282171
  37. Kayla RevallionCase Manager/Care Coordinator1619351590
  38. Nathaniel Rex, MDStudent in an Organized Health Care Education/Training Program1700645231
  39. Jason ReynoldsStudent in an Organized Health Care Education/Training Program1255725743
  40. John ReynoldsMental Health Counselor1447557442
  41. Maria Reynolds, MDStudent in an Organized Health Care Education/Training Program1639872377
  42. Melissa Reynolds, LICSWClinical Social Worker1073744371
  43. Paul Reynolds, PSY.D.Clinical Psychologist1679824536
  44. Ana Paula Rezende JohnsonMental Health Counselor1104276831
  45. Maureen Rezendes, PH.D.Psychologist1538264254
  46. Maryellen Rhinehart, MDInternal Medicine Physician1134193857
  47. Alison Rhodes, LICSWClinical Social Worker1104373943
  48. Barbara Rhodes, P.A.Surgical Physician Assistant1982882460
  49. Madison RiahinPhysical Therapist1013755941
  50. Mary Ricci, CRNACertified Registered Nurse Anesthetist1982168217

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.