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 9 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. Soyun Kim, PHARMDPharmacist1750972600
  2. Namita Kiran-ThueneBehavior Technician1215511837
  3. Richard Klaich, MSWClinical Social Worker1528289741
  4. Irina KleinermanStudent in an Organized Health Care Education/Training Program1629929427
  5. Ann Klinkusoom, NPNurse Practitioner1942585831
  6. Judith Kneen, LICSWClinical Social Worker1164587648
  7. Sarah KochisPediatric Nurse Practitioner1104061894
  8. Ian KoebnerAcupuncturist1366730111
  9. Teresa Kohlenberg, M.D.Pediatrics Physician1689715658
  10. Olga Kohlman, DPTPhysical Therapist1609438308
  11. Julie Kong, LICSWClinical Social Worker1942779996
  12. Nicole Kosar, MHCMental Health Counselor1811821192
  13. Mitchell Kossak, LMHCMental Health Counselor1598971160
  14. Karen Koumjian, ODOptometrist1134345689
  15. Barry Kran, ODOptometrist1124028592
  16. Susan Krikorian, PHARM.D.Pharmacotherapy Pharmacist1700095585
  17. Janet Kuklinski, NPAdult Health Nurse Practitioner1689633406
  18. Anna KuwaharaAcupuncturist1679221055
  19. Takayuki Kuwahara, LIC. AC.Acupuncturist1073642252
  20. Steven LaceyPharmacist1528642451
  21. Jean Ladas, MTMechanotherapist1881902229
  22. Charlene Laferrera, TVISpecialist1114518073
  23. Alexandra Lahey, FNP-BCFamily Nurse Practitioner1952254435
  24. Tracey-Phuong Lai, DMDDentist1225204795
  25. Dimitri Lamisere, AGPCNP-BCPrimary Care Nurse Practitioner1770232787
  26. April LamrockBehavior Analyst1235589508
  27. Luciana LancellottaBehavior Analyst1538532981
  28. Gordon Lang, MSWSchool Social Worker1659855690
  29. Natalie Lang, LICSWClinical Social Worker1265913362
  30. Rachel Lann, CCC-SLPSpeech-Language Pathologist1669708327
  31. Michael Larson, DOChild & Adolescent Psychiatry Physician1407896418
  32. Kaitlin Latorre, LICSWClinical Social Worker1326520149
  33. Susan Lattanzi, PTPhysical Therapist1265522775
  34. Jaclyn Lavigne, LICSWClinical Social Worker1700165347
  35. Alexandra Lavoie, OTR/LOccupational Therapist1467967992
  36. Ryan LavoieBehavior Analyst1346618113
  37. Jancie Lawrence, NP-CFamily Nurse Practitioner1760884407
  38. Margaret Layo, APRN FNP-BCFamily Nurse Practitioner1184225401
  39. Lisa Leblanc, NPFamily Nurse Practitioner1831741917
  40. Madeline LeeMental Health Counselor1417685405
  41. Marianne Lee, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1922264308
  42. Dina Leeman, OTR/L, MS, CBIS, LSVNeurorehabilitation Occupational Therapist1366917643
  43. Natalie Lender, M.D.Psychiatry Physician1740371038
  44. Giancarlo LeonCounselor1487360376
  45. Eliza Leone, RDRegistered Dietitian1083577050
  46. Julia Levin, M.A. CCC-SLPSpeech-Language Pathologist1861744633
  47. Claire Levine, LICSWClinical Social Worker1912125444
  48. Diane Levinson, OTRPediatric Occupational Therapist1265575369
  49. Ruth Levy, LICSWClinical Social Worker1083769673
  50. Jessica Lewis, MS OTR/LOccupational Therapist1811291263

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.