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Anesthesiology

Syed Asad M. Rizvi, MD

Works at hospitals in Manchester, CT · Willimantic, CT · Connecticut

Summary

Dr. Syed Asad M. Rizvi, MD is an anesthesiologist at 1185 Main St, Willimantic, CT 06226. Phone: (860) 423-7558. Accepts Medicare assignment. In 2024, Syed Asad M. Rizvi had 205 Original Medicare patients and 214 services. NPI 1114982402. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Syed Asad M. Rizvi, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Syed Asad M. Rizvi accept Medicare assignment?
Yes. Medicare's clinician data says Syed Asad M. Rizvi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Syed Asad M. Rizvi see?
In 2024, CMS data shows 205 Original Medicare patients and 214 services for Syed Asad M. Rizvi. This counts Original Medicare only and measures volume, not quality.
What is Syed Asad M. Rizvi's NPI number?
1114982402. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Syed Asad M. Rizvi, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients205
Services billed to Medicare214
Different services or procedures30
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Anesthesia for exam of colon using an endoscope (00812)86 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)43 services
  3. Anesthesia for procedure on small and large bowel using an endoscope (00813)16 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure74%
  • Arthritis37%
  • Ischemic heart disease31%
  • Chronic kidney disease28%
  • Diabetes27%

Hospitals where Syed Asad M. Rizvi works

Medicare's Facility Affiliation Data lists Syed Asad M. Rizvi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Manchester Memorial HospitalManchester, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070027
  • Windham Community Memorial HospitalWillimantic, CT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 070021

Practice locations

Addresses where Syed Asad M. Rizvi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Syed Asad M. Rizvi as a member of these groups (CMS data updated October 2, 2026).

  • Connecticut Gi PLLC248 clinicians in the group
  • Anesthesia Associates of Willimantic, PC48 clinicians in the group

Specialties

Find other Anesthesiology doctors in Connecticut →

Other anesthesiologists in Willimantic

Clinicians with the same Medicare primary specialty in Willimantic, CT — not a recommendation.

All anesthesiologists in Willimantic →

Other clinicians in Connecticut Gi PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1985 (41 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114982402
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians