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 62 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. Linyao YuanBehavior Technician1821695396
  2. Badinohon ZahuiBehavior Technician1376258871
  3. Marina ZakiBehavior Technician1578142279
  4. Kerry ZalogaBehavior Technician1750040176
  5. Donna Zaloumis, RPHPharmacist1740651827
  6. Mya ZamboniBehavior Technician1902558919
  7. Jenesy ZambranaBehavior Technician1780272146
  8. Shaneh ZarinebafBehavior Technician1730871849
  9. Adiyanna ZeidelBehavior Technician1942815758
  10. Catherine ZeinBehavior Technician1205579406
  11. Julia ZellerBehavior Technician1700453479
  12. Tara Zeltner, ESQ, LCSWClinical Social Worker1265294425
  13. Joshua ZhangBehavior Technician1922650019
  14. Helen Zhou, MDInternal Medicine Physician1538746839
  15. Fan Zhu, M.D.Radiation Oncology Physician1083146294
  16. Kelly Ziehm, COTA/LOccupational Therapy Assistant1760611420
  17. Dzintra ZielinskiSocial Worker1871773259
  18. Breana ZindleBehavior Technician1932061116
  19. Jonathan Zlotnick, D.P.T,Physical Therapist1699111260
  20. Melanie Zoltan, BCPACase Manager/Care Coordinator1164361176
  21. Johana ZuluagaBehavior Technician1861001430

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.