NPPES file of Aug 9, 2026

Doctors and health care providers in Marlborough, MA

3,071 individual NPPES records list a practice address in Marlborough, 7th of 406 Massachusetts cities. The largest group is behavior technician: 2,107, 69% of the city's records, against 5% across Massachusetts. Page 40 of 62.

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

The 8 largest groups in Marlborough

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

Marlborough in Massachusetts

  • Rank in Massachusetts7th of 406 cities by records
  • Share of the state1.4% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups77.4% of all records
  • Behavior Technician rank1st of the 10 Massachusetts cities with the most

Compared with Massachusetts as a whole, Marlborough has 13.2× the state's share of behavior technician records and 0.21× its share of counselor records.

Providers in Marlborough, alphabetically

  1. Sanjiv Nehra, DMDGeneral Practice Dentistry1528193885
  2. Alice NeilBehavior Technician1396495495
  3. Bayizere NelliBehavior Technician1568057198
  4. Audrianna NelsonBehavior Technician1134735012
  5. Kristen NelsonBehavior Technician1700668118
  6. Amanda Nemeth, M.ED., CCC-SLPSpeech-Language Pathologist1033365432
  7. Destiny NesbittBehavior Technician1881465995
  8. Maryann Netz, PTPhysical Therapist1710786546
  9. Jahnea NewboldBehavior Technician1083471437
  10. Jordan NewcombBehavior Technician1629700133
  11. Dillon NewfieldBehavior Technician1336903962
  12. Seth NewmanBehavior Technician1790481836
  13. Nancy Newton, MSWClinical Social Worker1295846780
  14. Vanessa Newton, DMDGeneral Practice Dentistry1023292844
  15. Nathalie NgadjieRegistered Nurse1033982608
  16. Liliane Ngassa SamouMental Health Counselor1114687613
  17. Cindy NgoBehavior Technician1235609116
  18. Kimmie NguyenPharmacist1538819149
  19. Kristina NguyenBehavior Technician1144037185
  20. Linda NguyenBehavior Technician1992392369
  21. Piper Nguyen, RPHPharmacist1780992693
  22. Vincent Nguyen, BCBA LABABehavior Analyst1821712720
  23. Damonique NickersonBehavior Technician1659108298
  24. Shanice Nickerson-RigginsBehavior Technician1306671417
  25. Amy Nicolosi, M.S. CCC/SLPSpeech-Language Pathologist1427210558
  26. Jose Nieves, LCSWClinical Social Worker1669609319
  27. Kaitlyn NievesBehavior Technician1548905680
  28. Aliya NixonBehavior Technician1588349229
  29. Alieu NjieBehavior Technician1346977550
  30. Alexus NjorogeBehavior Technician1710799622
  31. Beverly NockBehavior Technician1497446587
  32. Rocio Nordfeldt, M.D.Family Medicine Physician1043530033
  33. Cassandra NowakBehavior Technician1508792219
  34. Josephine NowakBehavior Technician1427841436
  35. Donna NunesBehavior Technician1306772579
  36. Desiree NunezBehavior Technician1073103271
  37. Diana NunezBehavior Technician1720710494
  38. Nikcolle NunezBehavior Technician1871366609
  39. Madison NunnBehavior Technician1083391544
  40. Brianne NurseBehavior Technician1972254795
  41. Andrew Nuzzolilli, M.S., BCBA, LABABehavior Analyst1659985786
  42. Ucee NwachukwuBehavior Technician1649028192
  43. Daniel O'Brien, D.M.D.General Practice Dentistry1588856991
  44. Michelle O'DayBehavior Technician1689229924
  45. Ronald O'Donnell, PH.D.Clinical Psychologist1932364528
  46. Bridget O'FallonBehavior Technician1932978053
  47. Katlyn O'NeilBehavior Technician1730809070
  48. Joshua O'NeillBehavior Technician1720673247
  49. Stephanie O'NeillMental Health Counselor1336886894
  50. Elise O'ReillyBehavior Technician1447071949

The largest Massachusetts cities

  1. Boston41,865
  2. Worcester13,166
  3. Springfield8,553
  4. Cambridge5,145
  5. Brockton4,287

All of Massachusetts →

How to read this directory

Marlborough, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 3,071 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 Marlborough - 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 Marlborough 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 Marlborough is weighted toward Behavior Technician (2,107 clinicians, followed by Behavior Analyst with 150 and Mental Health Counselor with 120). 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, Marlborough reports roughly 43.9 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 Marlborough 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 Marlborough, MA?

There are 3,071 registered healthcare providers in Marlborough, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Marlborough?

The most common specialties in Marlborough are Behavior Technician, Behavior Analyst, Mental Health Counselor, Clinical Social Worker, Pharmacist. Behavior Technician has the most providers with 2,107.

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.