Matthew Chamberlain, MD
Pediatrics Physician · Acton, MA
Matthew Chamberlain, MD is a pediatrics physician with a practice address in Acton, Massachusetts, and NPI 1760061279, issued on Apr 3, 2021. Check the license (Massachusetts 1018444, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Matthew Chamberlain
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 1018444 MA
Self-reported in NPPES; status is on the state search - Practice location
- 321 Main St, Acton, MA 01720
- Phone
- (978) 635-8700
- Enumerated
- Apr 3, 2021
- Record last updated
- Sep 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20240802002477); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 2,628 in Massachusetts → Look up another NPI →
Also registered at 321 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christopher Bechtel, NPNurse Practitioner1144578626
- Meryl BergerNurse Practitioner1922600220
- Louis Berk, M.D.Family Medicine Physician1730501875
- Elizabeth Berman, RDN, LDNRegistered Dietitian1679949143
- Christine Brown, M.D.Internal Medicine Physician1588861660
- Samuel BrownClinical Social Worker1336576065
Verify Matthew Chamberlain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1018444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Acton Medical Associates PCActon, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Chamberlain among 2,628 pediatrics physician records in Massachusetts
Matthew Chamberlain, MD is one of 2,628 pediatrics physician records with a practice address in Massachusetts. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 25% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Graduated2021 · median 2010 among the 319 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 pediatrics physician records list a practice address in Acton
They are 14 of the 556 NPPES records with a practice address in Acton, and 2,628 pediatrics physician records in Massachusetts.
All 2,628 in Massachusetts → Every provider in Acton → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Mark Cohen, M.D.Acton, MA 017201396730818
- Christopher Cooper, M.D.Acton, MA 017201477542132
- Jasmin Darling, M.D.Acton, MA 017201962882779
- Elayne Feinsod, M.D.Acton, MA 017201942425301
- Emily Harder, M.D.Acton, MA 017201619177698
- Alexandra Iannini, MDActon, MA 017201669433603
- John Jakimczyk, M.D.Acton, MA 017201477542967
- John Moren, CPNPActon, MA 017201952072639
Common questions
What is Matthew Chamberlain, MD's NPI number?
Matthew Chamberlain, MD's National Provider Identifier (NPI) is 1760061279, issued on Apr 3, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Chamberlain, MD located?
The NPPES record lists a practice address at 321 Main St, Acton, MA, 01720. Phone: (978) 635-8700. Providers update this record themselves, so call before visiting.
How can I verify Matthew Chamberlain, MD's license?
NPPES lists Massachusetts license number 1018444, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.