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 65 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. Kristen Direnzo, FNPFamily Nurse Practitioner1770953069
  2. Lisa Dirienzo, MS, RD, LDNRegistered Dietitian1891941753
  3. Heidi Diroberto, LMHCMental Health Counselor1326106667
  4. Steven Disegna, MDOrthopaedic Surgery Physician1790128650
  5. Kevin Disilvestro, MDOrthopaedic Surgery of the Spine Physician1679003263
  6. Mark Distefano, M.D.Emergency Medicine Physician1831232230
  7. Stephanie Ditommaso, CNPNurse Practitioner1942848551
  8. Nathan Dittmer, L.I.C.S.W.Clinical Social Worker1801834874
  9. Gretchen DittrichBehavior Analyst1003358706
  10. Brandon Ditullio, MS., BCBA, LABA.Behavior Analyst1831461151
  11. Christopher Ditullio, MDEmergency Medicine Physician1528718087
  12. Katelyn DitullioBehavior Technician1093323917
  13. Mohandas Divi, RNRegistered Nurse1902027519
  14. Sharon DivittoAdult Psychiatric/Mental Health Clinical Nurse Specialist1720189525
  15. Ann-Monique DixonMental Health Counselor1265231260
  16. Milady Dixson, CRNACertified Registered Nurse Anesthetist1194787028
  17. Elona Djeriki, PHARMDPharmacist1457974370
  18. Laurie DlugosBehavior Technician1730678681
  19. Lien DoPhysician Assistant1922450477
  20. Duke Doan, PHARMACISTPharmacist1982821856
  21. Huy DoanStudent in an Organized Health Care Education/Training Program1316687858
  22. Rose DoanMental Health Counselor1831842673
  23. Elizabeth Dobell, MDStudent in an Organized Health Care Education/Training Program1679367148
  24. Elizabeth Dobles, MDFamily Medicine Physician1306807409
  25. Michelina Docimo, M.S.Mental Health Counselor1881944312
  26. Dominique Dockery, MDStudent in an Organized Health Care Education/Training Program1578266821
  27. Linda Dodge, N.P.Nurse Practitioner1699885772
  28. Robyn DodgeMental Health Counselor1295081875
  29. Hannah DodierBehavior Analyst1508236738
  30. Kasia Dodman, NPAcute Care Nurse Practitioner1497267397
  31. Florence Doe, DOULADoula1396506911
  32. Adam Doerr, MDInternal Medicine Physician1023646379
  33. Roberta DogahBehavior Technician1831980184
  34. Christine Doherty, RNRegistered Nurse1891987251
  35. Laura Doherty, MS, SLPSpeech-Language Pathologist1891536280
  36. Meaghan Doherty, M.D.Pediatric Cardiology Physician1417277237
  37. Robert Doherty, M.S.WClinical Social Worker1154471431
  38. Sean Doherty, PTAPhysical Therapy Assistant1629581046
  39. David Doiron, DMIN LIC PSYPsychologist1598817322
  40. Alexis Dolan, LCSWClinical Social Worker1093301467
  41. Courtney DolanStudent in an Organized Health Care Education/Training Program1518853357
  42. Joan Dolan, NPNurse Practitioner1821062126
  43. Chelsea Dolan-GrushkinBehavior Technician1821765793
  44. Leslie Domalik, MDEndocrinology, Diabetes & Metabolism Physician1841307261
  45. Tina Dombrowski, RDHDental Hygienist1114072022
  46. Donna Domenicucci, LICSWClinical Social Worker1700204856
  47. Adwoa DomfehMental Health Counselor1124801600
  48. Robert Domingo, RNPsychiatric/Mental Health Nurse Practitioner1932020930
  49. Sherly Dominique CenegeDoula1013800176
  50. Stephanie DonBehavior Technician1104426105

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.