NPPES file of Aug 9, 2026

Doctors and health care providers in Groton, MA

140 individual NPPES records list a practice address in Groton, 191st of 406 Massachusetts cities. The largest group is clinical social worker: 12, 9% of the city's records, against 8% across Massachusetts. Page 3 of 3.

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

Groton in Massachusetts

  • Rank in Massachusetts191st of 406 cities by records
  • Share of the state<0.1% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.7% of all records

Providers in Groton, alphabetically

  1. Mark Randall, D.M.D.Dentist1316001233
  2. Megan Rank, RPHPharmacist1164025078
  3. Michele Rapala, PH.D.School Psychologist1447466248
  4. Cathleen Rimkus, M.EDDevelopmental Therapist1023298635
  5. Beth Rivet, LMHCMental Health Counselor1285362988
  6. Emily Ross, LICSWSocial Worker1295094829
  7. Crissey Safford, MS, OTR/LSpecialist1619158219
  8. Vandana Sahay, MDInternal Medicine Physician1881683068
  9. Alla Sarkisyan, MDInternal Medicine Physician1326037508
  10. Catherine SchultzPediatric Occupational Therapist1689815003
  11. Shenna Shepard, PSY.D.Psychologist1588702708
  12. Arlie ShumatePharmacist1457712358
  13. Jane Shustin, MSW LICSWClinical Social Worker1174793731
  14. Mary SlatterySocial Worker1033708243
  15. Ashley Smith-Boutin, NP, R.N.Primary Care Nurse Practitioner1073922464
  16. Erin Smolka, PA-CPhysician Assistant1922622315
  17. Carolyn Sniezek, PTPhysical Therapist1043222037
  18. Kirsten Sobkowich, APRNNurse Practitioner1891431771
  19. Petra Steinbuchel, MDChild & Adolescent Psychiatry Physician1184605958
  20. Christine Sweet, OTPediatric Occupational Therapist1427949593
  21. Joseph Tansey, DCChiropractor1447360516
  22. Amy Taynor, PHARMDPharmacist1861096521
  23. Cynthia Testa, MS, CCC-SLPSpeech-Language Pathologist1912349135
  24. Amir Tiam, DMDOrthodontics and Dentofacial Orthopedics Dentistry1386255354
  25. Marc Valli, D.M.D.Dentist1245676816
  26. Molly Valli, DMDDentist1396088290
  27. Frank Vangeli, LICSWClinical Social Worker1063567360
  28. Margaret Vangeli, LICSWClinical Social Worker1932254232
  29. Paula Vaughan, PA-CMedical Physician Assistant1326154279
  30. John Walsh, LMHCMental Health Counselor1407981525
  31. Jade Wanger, MS, LAT, ATCAthletic Trainer1801243605
  32. Elizabeth WarnckeFamily Nurse Practitioner1184312373
  33. Hilde Westvik, MDInternal Medicine Physician1235368242
  34. Bethany WhitefieldSpeech-Language Pathologist1902952849
  35. Shawna Young, MA, CCC-SLPSpeech-Language Pathologist1881424356
  36. James Yovino, RPHPharmacist1255935763
  37. Andrew Zale, DMDGeneral Practice Dentistry1740364421
  38. Elizabeth ZawadaBehavior Technician1558944553
  39. Kaitlyn Ziegler, FNP-CFamily Nurse Practitioner1497372122
  40. Karen Zomchek, DPTPhysical Therapist1740315779

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

Groton, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 140 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 Groton - 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 Groton 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 Groton is weighted toward Clinical Social Worker (12 clinicians, followed by Mental Health Counselor with 9 and Speech-Language Pathologist with 8). 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, Groton reports roughly 2 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 Groton practice address, a coverage gap Groton patients typically fill by traveling to a larger nearby hub.

For Groton 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 Groton, MA?

There are 140 registered healthcare providers in Groton, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Groton?

The most common specialties in Groton are Clinical Social Worker, Mental Health Counselor, Speech-Language Pathologist, Pharmacist, Family Nurse Practitioner. Clinical Social Worker has the most providers with 12.

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.