Quick answers
- Does Richard M. Zweig accept Medicare assignment?
- Yes. Medicare's clinician data says Richard M. Zweig 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 Richard M. Zweig see?
- In 2024, CMS data shows 175 Original Medicare patients and 1,023 services for Richard M. Zweig. This counts Original Medicare only and measures volume, not quality.
- What is Richard M. Zweig's NPI number?
- 1477548451. 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 Richard M. Zweig, 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 | 175 |
|---|---|
| Services billed to Medicare | 1,023 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)442 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)127 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)92 services
- Hemoglobin a1c level (83036)84 services
- Administration of influenza virus vaccine (G0008)70 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 blood pressure75%
- High cholesterol75%
- Arthritis33%
- Atrial fibrillation28%
- Diabetes23%
- Chronic kidney disease21%
Hospitals where Richard M. Zweig works
Medicare's Facility Affiliation Data lists Richard M. Zweig 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.
- Bristol HospitalBristol, CT · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 070029
Practice locations
Addresses where Richard M. Zweig is enrolled with Medicare (CMS data updated October 2, 2026).
- 1931 Black Rock TpkeFairfield, CT 06825 (203) 384‑8681
- 25 Collins RdBristol, CT 06010 (833) 424‑3627
- 41 Brewster RdBristol, CT 06010 (860) 585‑3000
- 923 Farmington AveBristol, CT 06010 (860) 314‑6000
Group practices
Medicare enrollment lists Richard M. Zweig as a member of these groups (CMS data updated October 2, 2026).
- Rehabilitation Associates Inc529 clinicians in the group
- Bristol Hospital Multi Specialty Group, Inc.148 clinicians in the group
Specialties
- Internal Medicineprimary
- Infectious Diseasealso
Other internal medicine doctors in Fairfield
Clinicians with the same Medicare primary specialty in Fairfield, CT — not a recommendation.
Other clinicians in Rehabilitation Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 1976 (50 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477548451 |
| 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