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 103 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. Laima Zarins, MDInternal Medicine Physician1669463246
  2. Peter Zarkadas, LICSWClinical Social Worker1225102544
  3. Lori Zasloff, PT DPTPhysical Therapist1124019658
  4. John Zdanowicz, DMDDentist1417022195
  5. Deena Zeigen, M.A., LMHCMental Health Counselor1952524555
  6. Laurie Zelas, MS RNCSPsychiatric/Mental Health Clinical Nurse Specialist1669446365
  7. David Zelaya, M.ED.Counseling Psychologist1912494774
  8. Yvette Zeng, PHARMDAmbulatory Care Pharmacist1396225470
  9. Stella Zhai, RNHome Health Registered Nurse1841994282
  10. Bo Ren Zhang, DOPsychiatry Physician1053987248
  11. Cong ZhangStudent in an Organized Health Care Education/Training Program1689001992
  12. Haocheng ZhangPhysical Therapist1790582914
  13. Helen ZhangStudent in an Organized Health Care Education/Training Program1124976352
  14. Rong Zhang, LIC. AC.Acupuncturist1114070547
  15. Ruoxi ZhangMental Health Counselor1760048938
  16. Tianyi ZhangBehavior Technician1417703208
  17. Yiling Zhang, PHDClinical Psychologist1619518560
  18. Huiling ZhaoPharmacist1043080344
  19. Shi-Jing Zhao, NPAdult Health Nurse Practitioner1972013357
  20. Judy ZhengPharmacist1043182991
  21. Julia Zhong, MSStudent in an Organized Health Care Education/Training Program1598654949
  22. Grace Zhou, DDS/MPHGeneral Practice Dentistry1760042261
  23. Kavin Zhu, MDStudent in an Organized Health Care Education/Training Program1952004145
  24. Krysten Zigga, PHARMDPharmacist1073860698
  25. Shannon ZikovichAnesthesiology Physician1396323267
  26. Gregory Zilli, RNAmbulatory Care Registered Nurse1821581802
  27. Michael Zimmerman, MDStudent in an Organized Health Care Education/Training Program1528756509
  28. Jake ZinaNurse's Aide1477331403
  29. William ZinnGeriatric Medicine (Internal Medicine) Physician1194887414
  30. Stephen Zinner, MDInfectious Disease Physician1629043245
  31. Leonard Zir, MDCardiovascular Disease Physician1275509150
  32. Amy Zisa, MDPediatrics Physician1285876532
  33. Jenna Zolotoy, NPFamily Nurse Practitioner1801267570
  34. Kate ZonaPsychologist1508202789
  35. Joseph Zorn, M.D.Internal Medicine Physician1538127873
  36. Cristina Zottola, MDObstetrics & Gynecology Physician1134650344
  37. Emily Zouzas, PHARMDPharmacist1487061024
  38. Deborah Zucker, MDInternal Medicine Physician1740267541
  39. Madison Zuckerman, LCSWSocial Worker1801785951
  40. Elizabeth Zulinska, MDAnatomic Pathology & Clinical Pathology Physician1669453023
  41. Amanda Zurick, PSY.D.Clinical Psychologist1265623698
  42. Gerald Zuriff, PHDPsychologist1033184106
  43. Kelly Zuromski, PHDClinical Psychologist1477266930
  44. Franklin Zweiman, MDDiagnostic Radiology Physician1932154564
  45. Jennifer Zysk, D.M.D.Dentist1689010530

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.