Doctor profile · Federal record

Dr. Zafar Siddiqui, MD

Anesthesiology Physician (CMS: Anesthesiology) · Westborough, MA

  • NPI 1134189624
  • Accepts Medicare
  • 44 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
21 Thomas Newton Dr
Westborough, MA 015811753
(508) 366-5012

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
September 20, 2022
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Massachusetts #219575
Medicaid
MA #110035666A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134189624. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
11
Distinct HCPCS
1
Medicare allowed
$4,063
HCPCS Description Services Patients Avg allowed
00790 Anesthesia for other procedure on upper abdomen 11 11 $369

In context: peer comparison

Among 1 peers in Westborough Anesthesiology Physician, average services per provider: 11. This provider delivers 1.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Zafar Siddiqui's medical specialty?
Dr. Zafar Siddiqui practices Anesthesiology Physician in Westborough, MA.
Where does Dr. Zafar Siddiqui practice?
Dr. Zafar Siddiqui practices at 21 Thomas Newton Dr, Westborough, MA 015811753. Office phone: 5083665012.
What is Dr. Zafar Siddiqui's NPI?
Dr. Zafar Siddiqui's National Provider Identifier (NPI) is 1134189624, issued by NPPES.
Does Dr. Zafar Siddiqui accept Medicare assignment?
Yes. Dr. Zafar Siddiqui accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Zafar Siddiqui commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on upper abdomen (HCPCS 00790). Source: CMS Medicare Physician & Other Practitioners file.