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 41 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. Emilie ObergBehavior Technician1912792433
  2. Anne Oberman, RBTBehavior Technician1275154353
  3. Anupreet Oberoi, M.DFamily Medicine Physician1881850816
  4. Jacob ObrienBehavior Technician1184560872
  5. Nzinga ObyBehavior Technician1528681228
  6. Damarys OcasioBehavior Technician1255069241
  7. Vilmarys OcasioBehavior Technician1326809179
  8. Stephanie OchoaBehavior Technician1619605235
  9. Joane OdateDevelopmental Therapist1427661305
  10. Daiahna OdomBehavior Technician1427797364
  11. Lara OgunmuyiwaBehavior Technician1386418481
  12. Kumi OkabeBehavior Technician1215692876
  13. Chikasiemobi OkaforBehavior Technician1689259012
  14. Sandra OkibediBehavior Technician1063278356
  15. Joy Mariette OkonkwoBehavior Technician1538028725
  16. Trust OkorieBehavior Technician1477225951
  17. Christopher Oldham, O.D.Optometrist1841392412
  18. Shana OliveBehavior Technician1750060992
  19. Audrey OliveiraBehavior Technician1801654330
  20. Jenniffer OliveiraBehavior Technician1245948678
  21. Maria Oliveira SalesBehavior Technician1568157352
  22. Courtny OlivierBehavior Technician1023984036
  23. Yachira OlivoBehavior Technician1093444655
  24. Caleb Olmedo, BSWBehavior Technician1740903178
  25. Caitlin Olsen, NPPsychiatric/Mental Health Nurse Practitioner1669750378
  26. Emily OlsonBehavior Technician1184398687
  27. Eunique Ommoregie DesravinesBehavior Analyst1043840564
  28. Zeinab OnifadeBehavior Technician1922648898
  29. Jessica OnojaMental Health Counselor1063910685
  30. Kendra Opoku-BrenyahBehavior Technician1972372084
  31. Susan Orciuch, OTR/LPediatric Occupational Therapist1487834974
  32. Courtney OrdwayBehavior Technician1952996969
  33. Danielle OredsonBehavior Analyst1598436404
  34. Nancy OrelienBehavior Technician1497485544
  35. Jane Orenstein, M.A.Mental Health Counselor1790919900
  36. Cassandra OrielBehavior Technician1528704434
  37. Samantha Ormond, RNAdult Health Nurse Practitioner1992246508
  38. Makayla OrrBehavior Technician1841061231
  39. Barbara OrtegaBehavior Technician1790251528
  40. Sophie OrtegaBehavior Technician1528763620
  41. Alena OrtizBehavior Technician1124893045
  42. David OrtizBehavior Technician1003424896
  43. Kendra OrtizBehavior Technician1578241105
  44. Makayla OrtizBehavior Technician1659256584
  45. Hannah OrtunoBehavior Technician1972228013
  46. Betty OsayandeBehavior Technician1700587078
  47. Tammy OsierBehavior Technician1073198016
  48. Maddison OtooleBehavior Technician1760287379
  49. Tania OutlawBehavior Technician1164143822
  50. Jonetta OwensBehavior Technician1205507084

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.