Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

David McCarthy, MD

Individual provider Family Medicine Physician · NPI 1740711506

David McCarthy, MD is registered under Family Practice in Chelmsford, Massachusetts. Graduated from University of Massachusetts Medical School in 2017, 9 years ago. Practices with Atrius Health Inc, a 1,205-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
9
Trained at
University of Massachusetts Medical School
Licensed in
MA
In the registry since
2017
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

228 Billerica Rd
Chelmsford, MA 01824-3604
Phone: (978) 250-6100
Fax: (978) 250-6002
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 40 Holland St, Somerville, MA 02144-2705 — (617) 629-6260

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 271416 (MA)

Record details

NPI number1740711506
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 23, 2017
Last updated in NPPESJanuary 3, 2025
Certification dateJanuary 3, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduated 2017 (9 years in practice)
Group practice Atrius Health Inc — 1205 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients86
Services billed 638 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Atrius Health Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1205 clinicians in the practice; 12 are shown here.

Other providers in Chelmsford