NPPES file of Aug 9, 2026

Doctors and health care providers in Worcester, MA

13,166 individual NPPES records list a practice address in Worcester, 2nd of 406 Massachusetts cities. The largest group is behavior technician: 1,487, 11% of the city's records, against 5% across Massachusetts. Page 96 of 264.

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

The 8 largest groups in Worcester

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

Worcester in Massachusetts

  • Rank in Massachusetts2nd of 406 cities by records
  • Share of the state6% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups26.2% of all records
  • Behavior Technician rank2nd of the 10 Massachusetts cities with the most

Compared with Massachusetts as a whole, Worcester has 2.4× the state's share of nurse practitioner records and 0.52× its share of physical therapist records.

Providers in Worcester, alphabetically

  1. Vanessa GriffinHospice Registered Nurse1588236558
  2. Christopher Griffith, LCSWClinical Social Worker1467775940
  3. Jennifer Griffith, LICSWClinical Social Worker1679617070
  4. Kimberly Grill, PAPhysician Assistant1164032629
  5. Krystabelle GrimaldiBehavior Technician1902590490
  6. Allison Grimaldo, NPFamily Nurse Practitioner1205571726
  7. Joyce Grimes, NPNurse Practitioner1811960107
  8. Andrew Grimm, MD, PHDPediatric Gastroenterology Physician1417117482
  9. Olivia GrocottStudent in an Organized Health Care Education/Training Program1639756810
  10. Conor Grogan, MDInternal Medicine Physician1093211054
  11. James Grogan, PA-CPhysician Assistant1093332025
  12. Katherine Grogan, MA CCC-SLPSpeech-Language Pathologist1376278457
  13. Debra Grollman, LICSWClinical Social Worker1386656718
  14. Kerry Grolman, D.D.S.Dentist1497856884
  15. Wendy Grolnick, PH.D.Clinical Psychologist1033601224
  16. Robert Grondin, DPMFoot Surgery Podiatrist1508038217
  17. Suzanne Grondin, DPMPodiatrist1639217276
  18. Danielle Grondine, DPTPhysical Therapist1033788682
  19. Morgan GrooverStudent in an Organized Health Care Education/Training Program1114778016
  20. Tiffany Groover, MDInternal Medicine Physician1891091310
  21. Lowell Gross, DDSDentist1982614194
  22. Patricia Gross, MS, LMHCMental Health Counselor1265576938
  23. Mariam Grossman, PTAPhysical Therapy Assistant1013167337
  24. Rachel Grossman, PSYDClinical Psychologist1891127163
  25. Richard Grossman, O.D.Optometrist1447208715
  26. Shannon Grote, LICSWClinical Social Worker1154867059
  27. Anna Grotevant, MS, RD, LDNRegistered Dietitian1669893996
  28. George Groussis, MDInternal Medicine Physician1184690992
  29. Maria Groussis, MDStudent in an Organized Health Care Education/Training Program1518809201
  30. Douglas Groves, M.D.Internal Medicine Physician1871576637
  31. R. John Groves, M.D.Orthopaedic Hand Surgery Physician1437204161
  32. Jessica GrubertDevelopmental Therapist1497106454
  33. Christine GrudoffDevelopmental Therapist1689033078
  34. Noelle GrudzieckiDevelopmental Therapist1215302054
  35. Lindsay Grumbach, NPFamily Nurse Practitioner1992505077
  36. Ilsa Grunder, NPNurse Practitioner1073653507
  37. Monica Gruner, RNMental Health Counselor1730395203
  38. Dylan GrunwaldDevelopmental Therapist1720561301
  39. Iliana GruwellBehavior Technician1831897248
  40. Peter Grzesik, DOAnesthesiology Physician1518378231
  41. Garrick GuStudent in an Organized Health Care Education/Training Program1255966255
  42. Jingwan GuAcupuncturist1124770607
  43. Melanie GualdarramaDevelopmental Therapist1679131130
  44. Sara GualtieriBehavior Technician1548133408
  45. Nicholas Guaragno, OTOccupational Therapist1154104412
  46. Gianna Guarino, MDStudent in an Organized Health Care Education/Training Program1033813506
  47. Anna GubalaStudent in an Organized Health Care Education/Training Program1578141628
  48. Kenia Guedes-OrtegaStudent in an Organized Health Care Education/Training Program1831689553
  49. Kara Guenette, RNRegistered Nurse1861792830
  50. Maureen Guerin PorterCounselor1275086589

The largest Massachusetts cities

  1. Boston41,865
  2. Springfield8,553
  3. Cambridge5,145
  4. Brockton4,287
  5. Milford3,459

All of Massachusetts →

How to read this directory

Worcester, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 13,166 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 Worcester - 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 Worcester 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 Worcester is weighted toward Behavior Technician (1,487 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,031 and Mental Health Counselor with 929). 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, Worcester reports roughly 188 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.

For Worcester 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 Worcester, MA?

There are 13,166 registered healthcare providers in Worcester, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Worcester?

The most common specialties in Worcester are Behavior Technician, Student in an Organized Health Care Education/Training Program, Mental Health Counselor, Developmental Therapist, Clinical Social Worker. Behavior Technician has the most providers with 1,487.

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.