NPPES file of Aug 9, 2026

Doctors and health care providers in Somerville, MA

1,860 individual NPPES records list a practice address in Somerville, 25th of 406 Massachusetts cities. The largest group is clinical social worker: 232, 12% of the city's records, against 8% across Massachusetts. Page 32 of 38.

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

The 8 largest groups in Somerville

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

Somerville in Massachusetts

  • Rank in Massachusetts25th of 406 cities by records
  • Share of the state0.8% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups29.2% of all records

Compared with Massachusetts as a whole, Somerville has 5× the state's share of community health worker records and 0.42× its share of student in an organized health care education/training program records.

Providers in Somerville, alphabetically

  1. Rachel SissonBehavior Technician1699341974
  2. Ashley Sitkin, LCSWSocial Worker1972807584
  3. Patrick Skeffington, PHARMDPharmacotherapy Pharmacist1629288287
  4. Darren SkehanMental Health Counselor1598915142
  5. Edward Skinner, PHARMDPharmacist1346528684
  6. Paulette Slattery, PTAPhysical Therapy Assistant1346486974
  7. Lea SlaughterAddiction (Substance Use Disorder) Counselor1649660705
  8. Tatiana Slavsky, M.D.Internal Medicine Physician1124060736
  9. Aunksika Slayton, OTR.LOccupational Therapist1306040290
  10. Jennifer SleeperCase Manager/Care Coordinator1891036240
  11. Gabrielle Sloss, PSYDClinical Psychologist1649937541
  12. Nicolas Sluyter-Beltrao, PA-CPhysician Assistant1609544428
  13. Brian Smerkers, MDInternal Medicine Physician1497140305
  14. Amy Smith, M.D., MPHFamily Medicine Physician1265669014
  15. David Smith, PSYDClinical Psychologist1528132776
  16. Elisabeth SmithMental Health Counselor1093535973
  17. Joshua Smith, LICSWClinical Social Worker1518442920
  18. Margaret SmithBehavior Analyst1063129393
  19. Shawnna Smith, LCSWClinical Social Worker1710688098
  20. Tracy SmithSocial Worker1063697753
  21. Virginia SmithFamily Nurse Practitioner1881754968
  22. Ziggy SmithMental Health Counselor1356784466
  23. Zachary SnellingClinical Social Worker1134801418
  24. Amy Sobieszczyk, LICSWClinical Social Worker1265506406
  25. Brianna Sobuta, DPTOrthopedic Physical Therapist1083021026
  26. Ingrid Soderlund, M.D.Internal Medicine Physician1265562706
  27. Aaron SoloveRegistered Respiratory Therapist1154935096
  28. Tamara SoraluzStudent in an Organized Health Care Education/Training Program1518213172
  29. Deborah Sosin, LICSWClinical Social Worker1023191426
  30. Yolanda SotoRegistered Nurse1598408932
  31. Nicole SouboskyMental Health Counselor1487317236
  32. Jasen SousaCase Manager/Care Coordinator1366783854
  33. Kyle SouzaDevelopmental Therapist1760213813
  34. Seth Souza, RPHPharmacist1194328997
  35. Heather Spangler, LICSWClinical Social Worker1912175357
  36. Emily Speagle, LICSWClinical Social Worker1174732119
  37. Ashley Speliotis, LICSWSocial Worker1235619396
  38. Carolyn Spengler, LICSWClinical Social Worker1396878625
  39. Jordan Spiers, LICACAcupuncturist1083922488
  40. Rebecca SpinaleSocial Worker1285246801
  41. Daniel Sprintzen, LICSWSocial Worker1083683759
  42. Varshini Sridhar, DMDGeneral Practice Dentistry1902491970
  43. Danielle St-Pierre, LICSWClinical Social Worker1609054964
  44. Madison Stabile, DPTPhysical Therapist1780366054
  45. Bonni Stahl, MDInternal Medicine Physician1568756062
  46. Katherine Stahl, LMHCMental Health Counselor1821601188
  47. Helen Stamatouras, DDSPediatric Dentistry1952838641
  48. Tasha StaplesSocial Worker1154671964
  49. Tracy Starr, TRACY ZIMMERMANMarriage & Family Therapist1164740965
  50. Sadie SteeleMental Health Counselor1164940219

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

Somerville, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 1,860 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 Somerville - 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 Somerville 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 Somerville is weighted toward Clinical Social Worker (232 clinicians, followed by Mental Health Counselor with 202 and Social Worker with 109). 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, Somerville reports roughly 26.6 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 Somerville practice address, a coverage gap Somerville patients typically fill by traveling to a larger nearby hub.

For Somerville 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 Somerville, MA?

There are 1,860 registered healthcare providers in Somerville, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Somerville?

The most common specialties in Somerville are Clinical Social Worker, Mental Health Counselor, Social Worker, Case Manager/Care Coordinator, Registered Nurse. Clinical Social Worker has the most providers with 232.

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.