NPPES file of Aug 9, 2026

Doctors and health care providers in North Chelmsford, MA

159 individual NPPES records list a practice address in North Chelmsford, 170th of 406 Massachusetts cities. The largest group is clinical social worker: 12, 8% of the city's records, against 8% across Massachusetts. Page 4 of 4.

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

North Chelmsford in Massachusetts

  • Rank in Massachusetts170th of 406 cities by records
  • Share of the state<0.1% of Massachusetts's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.1% of all records

Compared with Massachusetts as a whole, North Chelmsford has 2.9× the state's share of family nurse practitioner records.

Providers in North Chelmsford, alphabetically

  1. Lauri Welch, NPNurse Practitioner1972625788
  2. Jessica Wieselquist, MDInternal Medicine Physician1144255712
  3. Antoinette WillisBehavior Analyst1396252094
  4. Ronald Winfield, MDPsychiatry Physician1679554927
  5. Karen Wolfendon, LMHCMental Health Counselor1073670204
  6. Cecillia Wong, M.D.Cardiovascular Disease Physician1225560485
  7. W Wu, MDOrthopaedic Surgery Physician1487626545
  8. Shane WunderliPhysical Therapist1124987698
  9. Timothy Wymer, M.D.Internal Medicine Physician1376937268

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

North Chelmsford, Massachusetts appears in the CMS National Plan and Provider Enumeration System with 159 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 North 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 North 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 North Chelmsford is weighted toward Clinical Social Worker (12 clinicians, followed by Family Nurse Practitioner with 10 and Physical Therapist with 10). 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, North Chelmsford reports roughly 2.3 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, Behavior Technician is the most prominent one with no provider currently listing a North Chelmsford practice address, a coverage gap North Chelmsford patients typically fill by traveling to a larger nearby hub.

For North 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 North Chelmsford, MA?

There are 159 registered healthcare providers in North Chelmsford, MA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in North Chelmsford?

The most common specialties in North Chelmsford are Clinical Social Worker, Family Nurse Practitioner, Physical Therapist, Psychiatric/Mental Health Nurse Practitioner, Mental Health Counselor. Clinical Social Worker has the most providers with 12.

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.