NPPES file of Aug 9, 2026

Doctors and health care providers in Chelmsford, MA

937 individual NPPES records list a practice address in Chelmsford, 56th of 406 Massachusetts cities. The largest group is behavior technician: 80, 9% of the city's records, against 5% across Massachusetts. Page 3 of 19.

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

The 8 largest groups in Chelmsford

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

Chelmsford in Massachusetts

  • Rank in Massachusetts56th of 406 cities by records
  • Share of the state0.4% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups23.2% of all records

Compared with Massachusetts as a whole, Chelmsford has 3.7× the state's share of behavior analyst records and 0.21× its share of student in an organized health care education/training program records.

Providers in Chelmsford, alphabetically

  1. Adele BoudreauPharmacist1811519267
  2. Kathryn Boudrow, M.SBehavior Analyst1477241388
  3. Maha Boutros, D.M.D.General Practice Dentistry1174526172
  4. Lauren Bowman, MAMental Health Counselor1508656380
  5. Phyllis Bowman, EDDFamily Psychologist1831130228
  6. Nicole BoydBehavior Technician1235081175
  7. Cheryl Brackbill, PA-CPhysician Assistant1073713087
  8. Otilia Braescu, M.D.Obstetrics & Gynecology Physician1669679148
  9. Kalyn BrathwaiteBehavior Technician1356074462
  10. Howard Breen, MDGeneral Practice Physician1497768105
  11. Caroline BriereCounselor1477106060
  12. Wendy Briggs, LICSWClinical Social Worker1235387069
  13. Stephen Brovender, MDInternal Medicine Physician1275496036
  14. Christina BrownPeriodontics1881253722
  15. Elinor Brown, MDObstetrics & Gynecology Physician1265852347
  16. Jemel BrownBehavior Analyst1811560261
  17. Sarah BrownMaternal Newborn Registered Nurse1700502168
  18. Amy Brunaccini, LICSWClinical Social Worker1386682151
  19. Casey Bryson, DPTPhysical Therapist1851885057
  20. Stanley Bukowiec, DOOptician1376654954
  21. Bruce Bunker, O.D.Optometrist1750386835
  22. Marci BurnsPhysical Therapist1538536206
  23. Melissa Burt, CCC-AAudiologist1356564561
  24. Elnora Burton, ARNPFamily Nurse Practitioner1659694768
  25. Samantha Cail, MSWClinical Social Worker1275406787
  26. Kerry Callanan, OTR/LOccupational Therapist1578492914
  27. Jennifer Calnan, ODPediatric Optometrist1508076027
  28. Nicole CampCounseling Psychologist1972724797
  29. Heather Campbell, PTAPhysical Therapy Assistant1114284932
  30. Chenyu Cao, PHARMD, RPHPharmacist1245118017
  31. Lierin Capodilupo, BCBABehavior Analyst1801670229
  32. Megan Cardoso, M.D.Pediatrics Physician1598927873
  33. Diana Carlson, LICSWClinical Social Worker1558307843
  34. Sarah Carpenter, LCSW 17820Clinical Social Worker1821293622
  35. Deborah Carpenter Wallace, LICSWClinical Social Worker1942383427
  36. Elizabeth CarrickPharmacist1407028988
  37. Tayla Carroll, BCBABehavior Analyst1457891723
  38. Jensine CaseyDoula1619319688
  39. Kisairis Castillo, BCBABehavior Analyst1730071903
  40. Sharina CastilloBehavior Technician1235825688
  41. Joseph Cavallaro, PT, DPT, CSCSPhysical Therapist1659707115
  42. Brittany CayerBehavior Technician1801484126
  43. Erin Cebular, CNPInternal Medicine Physician1104456359
  44. Jessica CerconeBehavior Analyst1578490629
  45. Shelby Cerulli, DMDDentist1518458892
  46. Victoria Cerulli, DPTPhysical Therapist1407689748
  47. Jonathan Chan, RPHPharmacist1679178479
  48. Valerie ChantreaBehavior Technician1114496866
  49. Ronald Chaput, DDSDentist1932304672
  50. Brittany ChartierBehavior Technician1255089306

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

Chelmsford, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 937 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 Chelmsford - 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 Chelmsford 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 Chelmsford is weighted toward Behavior Technician (80 clinicians, followed by Behavior Analyst with 74 and Mental Health Counselor with 63). 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, Chelmsford reports roughly 13.4 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.

Of Massachusetts's most common specialties, Developmental Therapist is the most prominent one with no provider currently listing a Chelmsford practice address, a coverage gap Chelmsford patients typically fill by traveling to a larger nearby hub.

For Chelmsford 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 Chelmsford, MA?

There are 937 registered healthcare providers in Chelmsford, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Chelmsford?

The most common specialties in Chelmsford are Behavior Technician, Behavior Analyst, Mental Health Counselor, Clinical Social Worker, Physical Therapist. Behavior Technician has the most providers with 80.

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.