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 10 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. Gail Libowsky, NPAdult Health Nurse Practitioner1255390019
  2. Silas LinPharmacist1871183400
  3. Dmitry LinkovPharmacy Technician1912868142
  4. Susan Liu, MDPediatrics Physician1033641774
  5. Nikoletta Livingston, OTDOccupational Therapist1295416956
  6. Mary LoPharmacist1104542687
  7. Marcine Logue, NPFamily Nurse Practitioner1174581029
  8. Hui-Shien Loh, MDInternal Medicine Physician1619937117
  9. Nicole LombardSchool Social Worker1992421168
  10. Renee LongSpecialist1730054107
  11. Raveena Longia, MPHCase Manager/Care Coordinator1427880897
  12. Katherine Loomer, PHARMD.Pharmacist1336596717
  13. Carolyn Lorber, OTR/LOccupational Therapist1720658461
  14. Amy Lowell, MS OTRLPediatric Occupational Therapist1619017100
  15. Emily Lowenstein, LCSWClinical Social Worker1841882693
  16. Ornella LozierCounselor1215576913
  17. Elizabeth Lubelczyk, PHARMDPharmacist1255433173
  18. Fenway LubiakPhysical Therapist1295681427
  19. John Lucas, RN, BSNGeneral Practice Registered Nurse1427905389
  20. Rebecca Lukaszek, BCBABehavior Analyst1083103733
  21. Christina LupicaCounselor1134045420
  22. Lindsey LushSpecialist1114801925
  23. Victoria Luzarraga, RPTPhysical Therapist1619023637
  24. Leslie Macdonald, MDObstetrics & Gynecology Physician1376514562
  25. Maryann Macdougall, M.EDSpeech-Language Pathologist1316146459
  26. Lelia MaciverSocial Worker1679334858
  27. Iman Mack, DMDGeneral Practice Dentistry1184759425
  28. Carrie Ann Macleod, NPFamily Nurse Practitioner1013684471
  29. Megan MacleodPsychiatric/Mental Health Nurse Practitioner1770057283
  30. Laura Maestranzi, CF MSSpeech-Language Pathologist1306011770
  31. Natasha MaffeoMassage Therapist1689309072
  32. Raman Magay, FN- RWS, BCSINutritionist1588386098
  33. Stephanie Magdis, LICSWClinical Social Worker1902025554
  34. Kaitlin MaguireBehavior Analyst1720368749
  35. Brianne Mahoney, M.D.Obstetrics & Gynecology Physician1881892701
  36. Rebecca Maikels, BCBABehavior Analyst1164720595
  37. Sevan Makhoulian, PH.D.Clinical Psychologist1750762936
  38. Samantha Manero, MS, RD, LDNRegistered Dietitian1043836745
  39. Talia MangoAudiologist1255263695
  40. Anastasia ManiatisStudent in an Organized Health Care Education/Training Program1497616783
  41. Alexander ManjounesPharmacist1194483396
  42. Sara Mannix, NPNurse Practitioner1578616843
  43. Sean Markey, ED.D.Clinical Psychologist1699078295
  44. Kendal MaroneySchool Social Worker1437075637
  45. Maria Marquez, DMDOrthodontics and Dentofacial Orthopedics Dentistry1003956541
  46. Angela MartinAcupuncturist1891982716
  47. Anna Martin, OTRLOccupational Therapist1265642201
  48. Rachel Mastrangelo, MSED, BCBA, LABABehavior Analyst1568726560
  49. Jaime MatorrasMental Health Counselor1245478403
  50. Karekine Matossian, D.M.D.,M.S.General Practice Dentistry1225171994

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.