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 174 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 NicholsCounselor1255070249
  2. Joanne Nicholson, PH.D.Psychologist1811096530
  3. Utah Nickel, MS, BACB, LABABehavior Technician1366924094
  4. Ciarra NickersonObstetrics & Gynecology Physician1740817782
  5. Jenna NickersonPhysician Assistant1376465153
  6. Victoria Nicklin, M.S., CCC-SLPSpeech-Language Pathologist1215793831
  7. Bryan Nicolalde Lopez, M.DStudent in an Organized Health Care Education/Training Program1437844263
  8. Donald Nicole, L.C.S.W.Clinical Social Worker1124292156
  9. Allen NicolettiOptometrist1366197782
  10. Patricia NicolsClinical Social Worker1295101012
  11. Marek Nicpon, MDStudent in an Organized Health Care Education/Training Program1235766197
  12. Rebecca Niddrie, DPTPhysical Therapist1407190887
  13. Yvonne NiebuhrBehavior Technician1659994515
  14. Michael Niejadlik, MS, RD, LDN, CSCSRegistered Dietitian1235755653
  15. Lauren NiemannStudent in an Organized Health Care Education/Training Program1245844398
  16. Ashlin Niemczyk, M.ED., BCBABehavior Analyst1396324745
  17. Matthew Niemi, M.D.Nephrology Physician1053548321
  18. Ashley NievaBehavior Technician1730959271
  19. Christian NievesBehavior Technician1366035289
  20. Keishla NievesBehavior Technician1184292401
  21. Krystal NievesCase Manager/Care Coordinator1770353666
  22. Cristal Nieves MartinezBehavior Technician1417883455
  23. Zachary Nightingale, M.D., PH.D.Internal Medicine Physician1982834644
  24. Fares Nigim, MDStudent in an Organized Health Care Education/Training Program1790217248
  25. Fnu Niharika Mahesh, MDStudent in an Organized Health Care Education/Training Program1558209619
  26. Roozbeh Nikooie, MDInternal Medicine Physician1497218226
  27. Kelly NilandMental Health Counselor1720649734
  28. Simran NimalStudent in an Organized Health Care Education/Training Program1689516254
  29. Boniface NingabaDriver1659050623
  30. Elizabeth NiquetteMental Health Counselor1669356887
  31. Stephanie Niro, DPTPhysical Therapist1740465731
  32. Joshan Niroula, FNPRegistered Nurse1790447670
  33. Vincent Nishino, MDPediatrics Physician1396712295
  34. Theresa NissenbaumHearing Instrument Specialist1902787492
  35. Michaela NistaBehavior Technician1982598785
  36. Mika Nitta, PSY.D.Clinical Psychologist1629123062
  37. Idalis NivarDevelopmental Therapist1407314578
  38. Cole NixonBehavior Technician1780312330
  39. Laina Nixon, L.C.S.W.Mental Health Counselor1235323866
  40. Saifullah Nizamani, M.D.Psychiatry Physician1972523389
  41. Bernard NjehiaContractor1194553784
  42. John-Mark NjengaRegistered Nurse1902510241
  43. Aji Njie, M.D.Infectious Disease Physician1295120368
  44. Esther Njonge, RNHome Health Registered Nurse1598146169
  45. Everlyne Njoroge, CNPAcute Care Nurse Practitioner1164011078
  46. Jennifer Njoroge, RNRegistered Nurse1104746601
  47. Evaristus NkongchuHome Health Aide1417331190
  48. Marilyn Nkrumah, RNRegistered Nurse1316727803
  49. Marvin NkrumahBehavior Technician1578255113
  50. McLain Nobel, PA-CMedical Physician Assistant1689860694

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.