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

Anupam Mathur, MD

Individual provider Rheumatology Physician · NPI 1720048424

Anupam Mathur, MD practises Internal Medicine in Hudson, Massachusetts. Qualified in 1978, 48 years ago. Practices with Charles River Medical Associates, PC, a 119-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
48
Licensed in
MA
In the registry since
2006
Specialties on file
2
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

157 Washington St
Hudson, MA 01749-2765
Phone: (978) 562-0564
Fax: (978) 562-5646
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 76295 (MA)
Rheumatology Physician Taxonomy 207RR0500X · Licence 76295 (MA)

Record details

NPI number1720048424
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 25, 2006
Last updated in NPPESOctober 30, 2023
Certification dateOctober 30, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesRHEUMATOLOGY
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Group practice Charles River Medical Associates, Pc — 119 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 patients493
Services billed 7,833 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Colleagues at Charles River Medical Associates, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 119 clinicians in the practice; 12 are shown here.