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 53 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. Michael Langlois, LICSWClinical Social Worker1275578528
  2. Charles Langston, M.D.Diagnostic Radiology Physician1114099074
  3. Patricia Lannon, RNAmbulatory Care Registered Nurse1801469457
  4. Valerie LantimoAmbulatory Care Registered Nurse1356756324
  5. Jody Lanza-GregoryStudent in an Organized Health Care Education/Training Program1770340630
  6. Tramy Lao, PHARMDPharmacist1730582461
  7. Andrea Lapomardo, PSY.D.Clinical Psychologist1679005672
  8. Ellen Lapowsky, CNMAdvanced Practice Midwife1821168626
  9. Johnathan LarkeySocial Worker1831079995
  10. Tory Larsen, APRN, NPAcute Care Nurse Practitioner1669920179
  11. Justin Larson, M.D.Emergency Medicine Physician1821319393
  12. Christer Larsson, PSYDClinical Psychologist1376601906
  13. Marie Lucie LartigueRegistered Nurse1083386718
  14. Tanya Lashley, RNRegistered Nurse1104128966
  15. Michael Lass, LICSWClinical Social Worker1740421395
  16. Cheryll Last, RNRegistered Nurse1871247973
  17. Patrick Latham, PH.D.Clinical Psychologist1730245192
  18. Sanam Lathief, M.DEndocrinology, Diabetes & Metabolism Physician1295082477
  19. Scott Latimer, M.D.Family Medicine Physician1376978924
  20. Leon LatinoMental Health Counselor1316864085
  21. Leticia LatorelliRegistered Nurse1891470951
  22. Johnny LauSocial Worker1821912502
  23. Riah Laungani, MSMental Health Counselor1285569954
  24. Jennifer Lavery, RNRegistered Nurse1679218028
  25. Katherine LavewayMental Health Counselor1790583953
  26. Nina Lavins, PA-CPhysician Assistant1083131205
  27. Peter Lawner, PHDPsychologist1255315412
  28. Alok Lawrence, MASSAGE THERAPISTSpecialist1790017846
  29. Janet Lawrence, LICSWClinical Social Worker1649343377
  30. McEllen LawrencePsychologist1992530653
  31. Rebecca Lawrence, LICSWClinical Social Worker1518277573
  32. Flaurette LawsDoula1225966104
  33. Lena Lax, NPNurse Practitioner1417406976
  34. Tram Le, PHARMDPharmacist1932481322
  35. Emily Leadholm, LICSWClinical Social Worker1497928170
  36. Christina Leahy, PA-CPhysician Assistant1760029342
  37. Kathleen Leahy, LICSWClinical Social Worker1912070640
  38. Kelly Leahy, NPWomen's Health Nurse Practitioner1144051947
  39. Ana Amelia LealDoula1871447870
  40. Stephanie Lear, MDNephrology Physician1427019504
  41. Joseph Leary, D.OEmergency Medicine Physician1215356902
  42. Kimberlyn Leary, PH.D.Psychologist1700927308
  43. Jeffrey Leavitt, MDCardiovascular Disease Physician1861469785
  44. Luke Leavitt, RNRegistered Nurse1174334205
  45. Naomi Leavitt, PH.D.Forensic Psychologist1548325178
  46. Marianna Leavy-Sperounis, PSY.D.Psychologist1083146179
  47. Matthew Lebo, PHDClinical Molecular Genetics Physician1629347968
  48. Garrett Lech, PHARM.D.Pharmacist1104180306
  49. Edward Lechtenberg, DMDOral and Maxillofacial Surgery (Dentist)1639183841
  50. Anthony Lee, MDInternal Medicine Physician1972557270

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.