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 22 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. Andrea Marinilli, M.A.Developmental Therapist1043673478
  2. Erik Marks, LICSWClinical Social Worker1104930247
  3. Louise MarksSocial Worker1386109882
  4. Nina Marlowe, MDNeurology Physician1871650168
  5. Diogo MarraDevelopmental Therapist1063647675
  6. Renee Marrone, MAMental Health Counselor1669929709
  7. Caitlin Martin, RNFamily Nurse Practitioner1013253251
  8. Richard Martin, PA-CSurgical Physician Assistant1194873760
  9. Lily Martin-ChamberlainMental Health Counselor1457247561
  10. Karolyn MartinsBehavior Technician1386359602
  11. Raimi Marx, MEDMental Health Counselor1538517610
  12. Andrea MasciarelliBehavior Technician1356854913
  13. Rebeca Masis Cubero, LCSWSocial Worker1013686013
  14. Judith Masters, LICSWClinical Social Worker1427411867
  15. Helen Mastro, RDRegistered Dietitian1730152638
  16. Marguerite Mastrocola, LCSWSocial Worker1639819311
  17. Manuela Matei, M.D.Internal Medicine Physician1467404475
  18. Cailin Mateleska, LMHC, ATRCounselor1952875312
  19. Todd Mathews, RPHPharmacist1679868871
  20. Catherine Mattei-Williams, APRN, RNCSAdult Psychiatric/Mental Health Clinical Nurse Specialist1982791364
  21. Adrian MatthewsMental Health Counselor1679956353
  22. John Matthews, RRTRegistered Respiratory Therapist1710737820
  23. Kayla MaxeyCase Manager/Care Coordinator1093390890
  24. Carolyn May, LICSWClinical Social Worker1134291917
  25. Christie McBrayer, LPNLicensed Practical Nurse1043652266
  26. Katherine McBride, M.A. LMHCCounselor1962883009
  27. Pamela McCabe, RNAmbulatory Women's Health Care Registered Nurse1467750125
  28. Caroline McCallSocial Worker1689390692
  29. Catelin McCarristonClinical Social Worker1689224685
  30. Carly McCarthy, MSWSocial Worker1588231203
  31. John McCarthy, DCChiropractor1629596549
  32. Karen McCarthy, PTPhysical Therapist1386608503
  33. Michael McCarthy, PAPhysician Assistant1477828382
  34. Suzanne McCarthy, PHDPsychologist1891992186
  35. Katherine McCarty, LMHCMental Health Counselor1497912505
  36. Fiona McCaughan, RN, MSAmbulatory Care Registered Nurse1609208602
  37. Virginia McCaugheyStudent in an Organized Health Care Education/Training Program1194446419
  38. Rian McCormackPhysician Assistant1699186312
  39. Helen McCreedyClinical Social Worker1679058176
  40. Matthew McDermottMental Health Counselor1346792579
  41. Kendra McDonaldCase Manager/Care Coordinator1124514278
  42. Kara McElaneyMarriage & Family Therapist1053678060
  43. Peter McEntee, LICSWSocial Worker1659438059
  44. Caroline McFadden, M.D.Allergy Physician1437362993
  45. Julia McGlewMental Health Counselor1164931986
  46. Christina McGonagle, LCSWClinical Social Worker1225852064
  47. Natalie McGuire, RNRegistered Nurse1497428676
  48. Regina McKenna, LCSWClinical Social Worker1578222949
  49. Marlee McLaughlin-Bell, LMSWClinical Social Worker1861261570
  50. Connor McLindonCounselor1437031192

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.