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 11 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. Stephen Leung, DPTPhysical Therapist1699416206
  2. Lisa Leverone-D'Anna, PTPhysical Therapist1184688426
  3. Nicole Levine, FNP-BCFamily Nurse Practitioner1376053025
  4. Brenda Lewis, COTA/LOccupational Therapy Assistant1841600848
  5. Judith Lewis, MSW, BCDClinical Social Worker1750436671
  6. Kayden LewisOrthopedic Physical Therapist1407740673
  7. Stephanie Lewis, PAPhysician Assistant1821018516
  8. William Lewis, D.D.S.General Practice Dentistry1932128683
  9. Amy Li, NPWomen's Health Nurse Practitioner1487175055
  10. Li Liang, MDAllergy Physician1912994567
  11. Jennifer Liano, MDPediatrics Physician1295223972
  12. Tracy Lieu, M.D.Pediatrics Physician1770562316
  13. Jennie Lim, NPGerontology Nurse Practitioner1467280123
  14. Sharlett LimaBehavior Analyst1992207419
  15. David Lin, M.D.Colon & Rectal Surgery Physician1427262906
  16. Lorianne Loduca, M.ED, BCBA, LABABehavior Analyst1003137860
  17. Gloria LoehleSpeech-Language Pathologist1013857325
  18. Jennifer Lomonte, DPTPhysical Therapist1760015747
  19. Kayla LopezBehavior Technician1821623026
  20. Noryanna LopezOther Technician1457229734
  21. Candice Lorette, MSED, BCBA, LABACounselor1023793445
  22. Jesse Lowe, MAMarriage & Family Therapist1245598564
  23. Karen Lowe, MSW LICSWSocial Worker1881751402
  24. Elisabeth Lowney, NPNurse Practitioner1356392120
  25. Suzanne Lowy, PTPhysical Therapist1720107352
  26. Zoie LucasSocial Worker1033583729
  27. Gabriela Luna ColonCounselor1821747155
  28. Nicole Lynch, NPPediatric Nurse Practitioner1821284456
  29. Miriam MachadoBehavior Technician1366032344
  30. Lauren MacisaacCounselor1982159026
  31. Marilyn Macleod, DMDGeneral Practice Dentistry1821295718
  32. Yuki Maeda, MABehavior Analyst1023537172
  33. Lelia Magoba, APRN, CNPNurse Practitioner1649670027
  34. Monica Maillet, DMDDentist1346770765
  35. Milaina Mainieri, RNRegistered Nurse1871216739
  36. Ilia Manevich, M.D.Internal Medicine Physician1144551102
  37. Lauren ManiscalcoRegistered Dietitian1598513723
  38. Eric MannClinical Social Worker1336947589
  39. David Markham, D.M.DGeneral Practice Dentistry1093823304
  40. Jeanine Marrocco, ANPAdult Health Nurse Practitioner1023002649
  41. Laurel MartensFamily Nurse Practitioner1730427899
  42. Lyndsay Martin, D.C.Chiropractor1932509288
  43. Michaela MartinezCounselor1962226308
  44. J Massicotte, MDUrology Physician1336119957
  45. Jude Matseas, NPFamily Nurse Practitioner1376697219
  46. Melanie MazaresPhysical Therapist1437343324
  47. Maguatte Mbengue, AUDAudiologist1578381240
  48. Kevin McArdle, R.PH.Pharmacist1952571663
  49. Derek McCannBehavior Technician1265093538
  50. David McCarthy, MDFamily Medicine Physician1740711506

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.