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 patients | 205 |
|---|---|
| Services billed to Medicare | 214 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Anesthesia for exam of colon using an endoscope (00812)86 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)43 services
- 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).
- 1185 Main StWillimantic, CT 06226 (860) 423‑7558
- 300 Western BlvdGlastonbury, CT 06033 (860) 657‑1920
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
- Anesthesiologyprimary
Other anesthesiologists in Willimantic
Clinicians with the same Medicare primary specialty in Willimantic, CT — not a recommendation.
Other clinicians in Connecticut Gi PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114982402 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians