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 61 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. Ingrid DelinskiMedical Physician Assistant1922651405
  2. Ketura DeliscaBehavior Technician1780351742
  3. Dewey Delisle, MS, BCBABehavior Analyst1558779975
  4. Donna Delisle, RNRegistered Nurse1639292857
  5. Kathryn Deliso, ODOptometrist1063673028
  6. Nina Dell'Aera-JachymBehavior Technician1336806470
  7. Tanya DellannoSocial Worker1548717150
  8. Kathleen Dellapenna, LICSWClinical Social Worker1255845533
  9. Michael Dellaquila, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1467730705
  10. Wyatt Delomba, MDInternal Medicine Physician1063090249
  11. Ellen Delpapa, M.D.Maternal & Fetal Medicine Physician1093706202
  12. Maria Delrosario, M.D.Nephrology Physician1609859230
  13. Alyssa DelsoliaBehavior Technician1306510284
  14. Gelin Delva, MDDevelopmental Therapist1164065504
  15. Naomie Delva, NPNurse Practitioner1083250575
  16. Maria Delvecchio, CGC, LGCGenetic Counselor (M.S.)1053778753
  17. Mireya Deman, PH.DCounseling Psychologist1730693177
  18. Deborah Demarco, M.D.Rheumatology Physician1215910849
  19. Magen DemareBehavior Technician1558019497
  20. Nicole Demaria, CNPCritical Care Neonatal Nurse Practitioner1104242148
  21. Isabella DemartinoMental Health Counselor1922955327
  22. Robin DemasiOccupational Therapist1679617146
  23. Dianne Demers, PAPhysician Assistant1649221599
  24. Joshua Demers, OTR/LOccupational Therapist1114571767
  25. Leonid DemihovskyOptician1538510318
  26. Marina Demild, PA, MPHPhysician Assistant1043903297
  27. Jaimee Demone, M.D.Obstetrics & Gynecology Physician1801947924
  28. Samantha DemonicoBehavior Technician1760119507
  29. Megan Demorris, OTR/LOccupational Therapist1114657244
  30. Kristin DempseyBehavior Technician1336895309
  31. Arianna DeneaultBehavior Technician1548188105
  32. Meghan DeneenStudent in an Organized Health Care Education/Training Program1205380136
  33. Linda Denering, RDRegistered Dietitian1629639331
  34. Mam Deng Madout, MDStudent in an Organized Health Care Education/Training Program1225788524
  35. Cay Denherder, M.D.Internal Medicine Physician1386804961
  36. Brian Denietolis, PSY.D.Clinical Child & Adolescent Psychologist1396012373
  37. Courtney DenisMassage Therapist1205491792
  38. Samantha DenisBehavior Technician1013792183
  39. Mary DenmanClinical Social Worker1699296111
  40. William Dennett, RPHPharmacist1588670541
  41. Laura Dennis, PTPhysical Therapist1063895829
  42. Mamudu DennisCommunity Health Worker1275191835
  43. Noel DennisAddiction (Substance Use Disorder) Counselor1184128522
  44. Nicole DennisonCounselor1407705544
  45. Lindsey Dente, RN, IBCLC, SANELactation Consultant (Registered Nurse)1275202954
  46. Elizabeth Denver, PNPPediatric Nurse Practitioner1285079269
  47. Rohan Deo, MDInternal Medicine Physician1538906938
  48. Jeremias Deoliveira, RNPCPsychiatric/Mental Health Nurse Practitioner1922018969
  49. Marcus DeoliveiraBehavior Technician1801714464
  50. Kristy-Lee DeorseyBehavior Technician1902528383

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.