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 52 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. Lynn Sicuro, R.P.T.Physical Therapist1144401696
  2. Daniel SidotiPharmacist1154198968
  3. Ephraim SieberBehavior Technician1407613284
  4. Judson Siegel, DPMPodiatrist1497861587
  5. Emily SiegelmanBehavior Technician1841913829
  6. Kelly SiegwaltBehavior Technician1841845468
  7. Gabriella SignorileBehavior Technician1073227690
  8. Angela SikopBehavior Technician1447116249
  9. Cianna SilborBehavior Analyst1023816014
  10. Daysha SilvaBehavior Technician1821737883
  11. Elizabeth SilvaBehavior Technician1962184614
  12. Ivanilda SilvaBehavior Technician1609643865
  13. Marcella SilvaBehavior Technician1629669437
  14. Victoria SilvaBehavior Technician1003660341
  15. Lenyn Silva FerreiraBehavior Technician1467162958
  16. Michelle SilverBehavior Technician1306693056
  17. Kendal SimardMental Health Counselor1861006652
  18. Mike SimmonsBehavior Technician1285462978
  19. Renard SimmonsBehavior Technician1447038526
  20. Deana SimmsBehavior Technician1306558762
  21. Sarah SimonBehavior Technician1144989237
  22. Aniyah Simpson, RBTBehavior Technician1801674403
  23. Damian Sinclair, RBTBehavior Technician1043805914
  24. Marie SingletonBehavior Technician1942938600
  25. Melissa SingletonBehavior Technician1013638451
  26. Herman Sintim-AboagyeLicensed Practical Nurse1164371027
  27. Habib Sioufi, MDClinical Pathology/Laboratory Medicine Physician1639151574
  28. Courtney Skaar, PSY.D.Forensic Psychologist1639536071
  29. Holly SkaparsBehavior Analyst1780958579
  30. Khadijah SkeetsBehavior Technician1497440390
  31. Kristin SkipperBehavior Technician1508450040
  32. Caroline SlaskiBehavior Technician1194508432
  33. Madison SlatcherBehavior Technician1487240818
  34. Marissa Slavik, BCBABehavior Analyst1184248825
  35. Jenifer SleddBehavior Technician1124889357
  36. Joseph Sliwkowski, MDSports Medicine (Preventive Medicine) Physician1861452294
  37. Latasha SmallBehavior Technician1568056174
  38. Michael SmallBehavior Technician1487341152
  39. Rebecca SmallBehavior Technician1114665379
  40. Ivanna SmallsBehavior Technician1023741782
  41. Alexis SmithBehavior Technician1083224760
  42. Amy SmithBehavior Technician1598431983
  43. Ariana SmithBehavior Technician1285316240
  44. Ashley SmithBehavior Technician1104536978
  45. Ashley SmithBehavior Technician1649047606
  46. Brooklyn SmithBehavior Technician1396322632
  47. Chelsea SmithBehavior Technician1104785963
  48. Donna Smith, BS, MSBehavior Technician1750962908
  49. Jennifer SmithDevelopmental Therapist1447961529
  50. Joanna SmithBehavior Technician1205441003

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.