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 8 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. Masahiro IchikawaAcupuncturist1669676284
  2. Tanya Iliadis, PHARMDPharmacist1982711719
  3. Margaret Ingolia, MS OTRLPediatric Occupational Therapist1528102050
  4. Charmain Jackman, PHDPsychologist1619958402
  5. Benjamin JacksonCounselor1275081929
  6. Elise Jackson, DPTPhysical Therapist1023533973
  7. Julie Jacobsen, MS, RD, LDNRegistered Dietitian1245639285
  8. Aviva Jacobstein, LICSWClinical Social Worker1275196743
  9. Jack Jaffe, M.D.Pain Medicine (Anesthesiology) Physician1891904678
  10. Judith James, LIC. AC.Acupuncturist1720155450
  11. Michael Jaro, MAMental Health Counselor1558494336
  12. Dominique Jeanty, PHARMD, BCPSPharmacist1912632993
  13. Jenny Jelliffe, MSNGerontology Registered Nurse1477860401
  14. Tiffany Jeng, M.S., CCC-SLPSpeech-Language Pathologist1659882207
  15. Raymond Jette, LIC. AC.Acupuncturist1134297971
  16. Samantha JewersPhysician Assistant1457961765
  17. Mahlet JimmaFamily Nurse Practitioner1447809785
  18. Nicolia Jiraff, RNRegistered Nurse1316365117
  19. Kjersten Johnsen, APNPsychiatric/Mental Health Clinical Nurse Specialist1407172588
  20. Jeana Johnson, LMHCCounselor1033983580
  21. Katherine Johnson, BCBABehavior Analyst1043517634
  22. Steven Johnson, OTR/LLow Vision Occupational Therapist1770712127
  23. Rebecca Johnston, PH.D.Psychologist1821004706
  24. Maura Jones, MSN, FNP-BCFamily Nurse Practitioner1932947793
  25. Elaine Jost, LICSWMental Health Counselor1831181296
  26. Amy JoyAcupuncturist1841526654
  27. Manal Kachmar, PHDPharmacist1538757281
  28. Madison KadraOccupational Therapist1871373464
  29. Lauren Kamerzel, LMHCMental Health Counselor1942736616
  30. Casey KaneBehavior Analyst1376018960
  31. Gladys KasansulaMental Health Counselor1548735327
  32. Amanda KasperMental Health Counselor1720513245
  33. Paul Kasuba, MDInternal Medicine Physician1851389969
  34. Douglas KaufmanPharmacist1558656454
  35. Sarah Kaye, N.P.Primary Care Nurse Practitioner1992259741
  36. William Keane, PH.D,Clinical Psychologist1750455044
  37. Sara KearyClinical Social Worker1942840491
  38. Stephanie KeeseyBehavior Analyst1982948162
  39. Jaclyn Kehoe, LCSWClinical Social Worker1184435844
  40. Robert Kelleher, MDInternal Medicine Physician1891761714
  41. Naomi Kelly, CCC SLPSpeech-Language Pathologist1265653323
  42. Trevor Kelly, DPTPhysical Therapist1336867183
  43. Michael Kenney, PTPhysical Therapist1306800875
  44. Brenda KerbelPediatric Adolescent Medicine Physician1982806451
  45. Richard Kerbel, M.D.Pediatric Adolescent Medicine Physician1356390215
  46. Rosetta KerioPharmacist1124843230
  47. Barry Kesselman, MED,LMHCMental Health Counselor1730355660
  48. Marianne Khoury, M.D.Pediatrics Physician1255319430
  49. Erin Kim, LMFTMarriage & Family Therapist1003670118
  50. Joo Kim, M.D.Internal Medicine Physician1497724173

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.