ZAFAR I. SIDDIQUI (MD) – Anesthesiology Physician, NPI 1134189624
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,323 ANESTHESIOLOGY in MA
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Provider Addresses for ZAFAR I. SIDDIQUI (MD)
21 THOMAS NEWTON DR
WESTBOROUGH, MA 015811753
Phone:
Type: Mailing
PO Box 846028, Albany Street, Church Green, Financial District, Boston, Suffolk County, Massachusetts, 02284-6028, United States
BOSTON, MA 022415348
Phone:
Type: Mailing
UMass Memorial Medical Center - Memorial Campus, 119, Belmont Street, Chandler Hill, Worcester, Worcester County, Massachusetts, 01605, United States
WORCESTER, MA 016052903
Phone: (508) 334-8297
Fax: (508) 334-8204
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2022-07-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040401000906 | I | Anesthesiology | MA | TBD |
| I20220725001591 | I | Anesthesiology | NH | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 00790 | Anesthesia for other procedure on upper abdomen | 11 | 11 | $0 |
Insurance plans in this area (ZIP 01581)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ANESTHESIOLOGY | MA | 01402 | Anesthesia for open or endoscopic total knee joint replacement | 30 | 29 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | NH | |
| A N E S T H E S I O L O G Y | NH | |
| - | NH | |
| Certified Registered Nurse Anesthetist (Crna) | NH | |
| Certified Registered Nurse Anesthetist (Crna) | NH | |
| Certified Registered Nurse Anesthetist (Crna) | NH | |
| Certified Registered Nurse Anesthetist (Crna) | NH | |
| - | NH | |
| A N E S T H E S I O L O G Y | MA | |
| Certified Registered Nurse Anesthetist (Crna) | NH |
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