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Dr. Matthew Chamberlain , MD

Pediatrics β€’ Acton, MA

Active NPI 1760061279 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

321 Main St
Acton, MA 017203799

Call 9786358700 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

321 Main St

Acton, MA 017203799

Telephone 9786358700
Organization at the Same NPPES Address or Phone
Acton Medical Associates, Pc Facility NPI 1447365408

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Acton Medical Associates Pc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2021

Industry payments (Open Payments)

No Open Payments records are listed for this clinician for 2019–2025.

Guide: How to read an Open Payments record

Years since graduation

5 years (graduated 2021)

CMS Doctors and Clinicians data list 2021 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2021

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Chamberlain has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Chamberlain as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Acton and Massachusetts

14 active clinicians are listed under Pediatrics with a practice address in Acton, MA (2,628 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Acton

0% of these 14 clinicians have the CMS telehealth indicator.

28.6% of these 14 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-09-18
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

License # reported to NPPES MA 1018444

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PEDIATRIC MEDICINE

Medicare Enrollment ID

I20240802002477

Enrollment State Jurisdiction

MA

PECOS Control ID

3678010089

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Acton Medical Associates Pc

321 Main St, Acton, MA 017203718

Phone: 9786358700

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

25 listed
Christopher Bechtel , NP

Nurse Practitioner

NPI 1144578626

Nurse Practitioner

Dr. Louis Berk , MD

Family Medicine

NPI 1730501875

Doctor of Medicine (M.D.)

Elizabeth Berman , RDN, LDN

Dietitian, Registered

NPI 1679949143

Registered Dietitian Nutritionist, Licensed Dietitian Nutritionist

Dr. Christine Brown , MD

Internal Medicine

NPI 1588861660

Doctor of Medicine (M.D.)

Elizabeth Burbage , RN

Nurse Practitioner - Family

NPI 1467108548

Registered Nurse

Barbara Casaceli , RD, LDN

Dietitian, Registered

NPI 1619039633

Registered Dietitian, Licensed Dietitian Nutritionist

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

8 Historical Events
πŸ“
Updated Practice Location September 18, 2025

Registered at 321 MAIN ST, ACTON, MA 017203799 (Tel: 9786358700)

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) September 18, 2025

Pediatrics (license number reported to NPPES: MA 1018444)

βœ…
NPI Profile Active April 03, 2021

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) April 03, 2021

Registered at 800 WASHINGTON ST, BOSTON, MA 021111552 (Tel: 6176368100)

πŸ“
Business Mailing Address (Initial Record) April 03, 2021

Registered at 12 TANGLEWOOD DR, CHELMSFORD, MA 018241267 (Tel: 5084510420)

πŸ‘€
Provider Name / Credentials (Initial Record) April 03, 2021

Recorded as MATTHEW CHAMBERLAIN, MD

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 03, 2021

Pediatrics (license number reported to NPPES: MA 00000)

🟒
Initial NPI Registration & Enumeration April 03, 2021

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1760061279
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 03, 2021
Last Update: September 18, 2025
Sole Proprietor: No

Mailing Address

12 Tanglewood Dr

Chelmsford, MA 018241267

Phone: 5084510420

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.