Doctor profile · Federal record

Dr. Arun Chaudhary, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Internal Medicine Physician · Hospitalist Physician · Cambridge, MA

  • NPI 1255371043
  • Accepts Medicare
  • 31 yrs in practice
  • Licensed in 3 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1575 Cambridge St
Cambridge, MA 021384308
(617) 876-4344
Mailing address
151 Osgood St
Andover, MA 018105406

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
January 26, 2012
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (3)
Massachusetts #224431 · New Hampshire #12417 · Hawaii #11365
Medicaid (2)
MA #2161141 · NH #30204849

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255371043. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
33
Distinct HCPCS
2
Medicare allowed
$3,710
HCPCS Description Services Patients Avg allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 18 14 $53
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 15 15 $184

In context: peer comparison

Among 70 peers in Cambridge Internal Medicine Physician, average services per provider: 94. This provider delivers 0.4× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$43
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Lexicon Pharmaceuticals, INC. 1 $43.38

By nature of payment

Food and Beverage
$43

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
12
Patients
0
Total drug cost
$154
Drug Type Claims Patients Total cost
Baclofen Generic 12 0 $154

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Arun Chaudhary's medical specialty?
Dr. Arun Chaudhary practices Internal Medicine Physician in Cambridge, MA.
Where does Dr. Arun Chaudhary practice?
Dr. Arun Chaudhary practices at 1575 Cambridge St, Cambridge, MA 021384308. Office phone: 6178764344.
What is Dr. Arun Chaudhary's NPI?
Dr. Arun Chaudhary's National Provider Identifier (NPI) is 1255371043, issued by NPPES.
Does Dr. Arun Chaudhary accept Medicare assignment?
Yes. Dr. Arun Chaudhary accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Arun Chaudhary commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.