NPPES file of Aug 9, 2026

Doctors and health care providers in Watertown, MA

873 individual NPPES records list a practice address in Watertown, 60th of 406 Massachusetts cities. The largest group is clinical social worker: 100, 11% of the city's records, against 8% across Massachusetts. Page 7 of 18.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Watertown

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Watertown in Massachusetts

  • Rank in Massachusetts60th of 406 cities by records
  • Share of the state0.4% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28.8% of all records

Compared with Massachusetts as a whole, Watertown has 12.2× the state's share of pediatric occupational therapist records and 0.34× its share of student in an organized health care education/training program records.

Providers in Watertown, alphabetically

  1. Hilary Graham, LMHCMental Health Counselor1700912037
  2. Juan Jose Graham, DMDDentist1700071727
  3. Kimberly Grebert, LICSWClinical Social Worker1831261403
  4. Jeffrey Greenberg, M.D.Internal Medicine Physician1134153885
  5. Malcolm Greene, O.D.Optometrist1649264318
  6. Martin Greene, ODOptometrist1154354025
  7. Wendy Greenhalgh, BCBABehavior Analyst1043654106
  8. Blake GriderBehavior Analyst1649501628
  9. Gina Griffin, M.S.Behavior Analyst1912259300
  10. Adrian Gropper, M.D.General Practice Physician1891022661
  11. Lauren GroverBehavior Analyst1396144564
  12. Erica GrzywaczBehavior Analyst1992178339
  13. Guido Guidotti, M.D.Occupational Medicine Physician1972560183
  14. Kayla GuirguisClinical Social Worker1629737457
  15. Maho GulloNephrology Physician1134085939
  16. Alina GusevBehavior Analyst1417386020
  17. Andree Haas, MDSpecialist1275583213
  18. Bryna HackettClinical Social Worker1699127852
  19. Kristen Hackney, MAMental Health Counselor1073698395
  20. Julie Handley, LMHCMental Health Counselor1851575898
  21. Jane Hanenberg, ED.D.Psychologist1881749950
  22. Carolyn Hanke, LICSW-MAClinical Social Worker1871078758
  23. Denice Hannon-Perera, BCBABehavior Analyst1245505023
  24. Maxine Haron, MS OTRLPediatric Occupational Therapist1841328044
  25. Linda Harrington, LMHCMental Health Counselor1417084518
  26. Elizabeth HarrisClinical Social Worker1649525486
  27. Judith HarvesterDevelopmental Therapist1497942718
  28. Jinous Hassanein, D.M.D.Dentist1619012911
  29. Audrey HatasPhysical Therapist1407270705
  30. Frances HellumsCounselor1134795503
  31. Alyssa HendrickBehavior Analyst1427471853
  32. Lynne Henning, ARNPFamily Nurse Practitioner1043319783
  33. Martin HensonAddiction (Substance Use Disorder) Counselor1659776524
  34. Kanizeh HernandezAmbulatory Care Pharmacist1881472033
  35. Nia Hernandez-SmithClinical Social Worker1629797659
  36. Julianne Hertz, ATR-BC, LMHCArt Therapist1366586679
  37. Jose Augusto Hidalgo, M.D.Psychiatry Physician1013964899
  38. Alex Hirshberg, M.A.Mental Health Counselor1861709180
  39. Chau Hoang, PHARMD, RPHPharmacist1700671740
  40. Adria Hodas, RN,C FNPSchool Registered Nurse1497098453
  41. Kris HolmbergChiropractor1912336983
  42. Laura Horn, PSY.D.Clinical Psychologist1790090124
  43. Vekcheth Houm, RPHPharmacist1013629849
  44. Natalie Howard, FNP, RNFamily Nurse Practitioner1255839957
  45. Patricia Howe, LICSWClinical Social Worker1790868032
  46. Christina HsuSchool Psychologist1679462394
  47. Harold Huang, PTPhysical Therapist1609892652
  48. Szu-Ping Huang, PA-CPhysician Assistant1912503533
  49. Latrese Hudson, MSW, LCSWClinical Social Worker1588434674
  50. Tung Yan HuiBehavior Technician1174090591

The largest Massachusetts cities

  1. Boston41,865
  2. Worcester13,166
  3. Springfield8,553
  4. Cambridge5,145
  5. Brockton4,287

All of Massachusetts →

How to read this directory

Watertown, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 873 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 Watertown - 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 Watertown 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 Watertown is weighted toward Clinical Social Worker (100 clinicians, followed by Behavior Analyst with 92 and Mental Health Counselor with 59). 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, Watertown reports roughly 12.5 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 Watertown practice address, a coverage gap Watertown patients typically fill by traveling to a larger nearby hub.

For Watertown 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 Watertown, MA?

There are 873 registered healthcare providers in Watertown, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Watertown?

The most common specialties in Watertown are Clinical Social Worker, Behavior Analyst, Mental Health Counselor, Pharmacist, Physical Therapist. Clinical Social Worker has the most providers with 100.

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.