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 222 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. Kenneth Sicard, M.D., PH.D.Diagnostic Radiology Physician1093965436
  2. Alfida Siceron-ReynaAddiction (Substance Use Disorder) Counselor1669760880
  3. Christine SicusoBehavior Analyst1912357898
  4. Joseph Sidari, MDOtolaryngology Physician1699709584
  5. Ghada SiddikSocial Worker1063966539
  6. Asma SiddiquiPhysician Assistant1255100830
  7. Efaza Siddiqui, MDDiagnostic Radiology Physician1104302876
  8. William Sidelinger, MDChild & Adolescent Psychiatry Physician1467071209
  9. Nancy Sidhom, NPAcute Care Nurse Practitioner1649338500
  10. Samarth Sidhu, MDStudent in an Organized Health Care Education/Training Program1194527176
  11. Anne Siegel, MSCounselor1336498286
  12. Judith Siegel, MDOrthopaedic Surgery Physician1518175058
  13. Randee Siegel, LICSWClinical Social Worker1053942847
  14. Keith Sieger, CRNACertified Registered Nurse Anesthetist1992117584
  15. Natalie Siemen, R.N.Registered Nurse1013055185
  16. Cristi Sierra, DPTPhysical Therapist1538641584
  17. Michelle Siew, MDStudent in an Organized Health Care Education/Training Program1336710656
  18. Shwu Siew, M.D.Internal Medicine Physician1427178110
  19. Shirley SiffClinical Psychologist1033302369
  20. Cheryl SigalisOccupational Therapist1568506939
  21. Daniel SigalovskyAnesthesiology Physician1134688252
  22. Sarah Pearl Siganporia, MDStudent in an Organized Health Care Education/Training Program1982282067
  23. Brionne SilcottClinical Social Worker1689444713
  24. Alyssa Silk, NPNurse Practitioner1083472526
  25. Hugh Silk, MDFamily Medicine Physician1528018835
  26. Van Silka, M.D.Psychiatry Physician1881672210
  27. Jonathon Sillman, M.D.Otolaryngology Physician1972550101
  28. Alexandra SilvaOccupational Therapist1497500755
  29. Amy SilvaBehavior Technician1013747427
  30. Andrei SilvaMental Health Counselor1700476983
  31. Brianne Silva, AU.D.Audiologist1609994334
  32. Danilo SilvaMental Health Counselor1497260319
  33. Eileen Silva, MAMental Health Counselor1972018083
  34. Erica Silva, M.S. BCBA, LABABehavior Analyst1962854349
  35. Gabriella SilvaDevelopmental Therapist1972087609
  36. Jason SilvaSocial Worker1285248484
  37. Laura Silva, M.A.., LICMHCMental Health Counselor1013073212
  38. Lindsey Silva, RNGeneral Practice Registered Nurse1922510981
  39. Mariana SilvaBehavior Technician1912774589
  40. Matthew Silva, PHARM.D.Pharmacist1780665026
  41. Melissa Silva, RNCommunity Health Registered Nurse1184209165
  42. Ryan Silva, MDEmergency Medicine Physician1891480778
  43. Stephanie SilvaBehavior Technician1639063340
  44. Hendrick Silva CostaBehavior Technician1336935212
  45. Amanda Silveira, PSY.D.Psychologist1457972432
  46. Alexis Silver, LICSWSocial Worker1942783592
  47. Brian Silver, M.D.Neurology Physician1831264571
  48. Howard Silver, PA-CSurgical Physician Assistant1164483764
  49. Scott Silverman, M.D.Neurology Physician1871549089
  50. Daniel Silverstone, M.D.Diagnostic Radiology Physician1679561302

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.