Rainer W. Bagdasarian, MD

Medicare activity in 2024

Official CMS public-use data for Rainer W. Bagdasarian, 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.

Most frequent services

1. Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days (93294)51 services
2. Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days (93296)46 services
3. Programming of dual lead pacemaker system (93280)42 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)32 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)25 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%
• Arthritis39%
• Chronic kidney disease38%
• Atrial fibrillation38%
• Ischemic heart disease36%

Hospitals where Rainer W. Bagdasarian works

Medicare's Facility Affiliation Data lists Rainer W. Bagdasarian 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 Rainer W. Bagdasarian is enrolled with Medicare (CMS data updated October 2, 2026).

• 15 Riverside AveBristol, CT 06010
• 41 Brewster RdBristol, CT 06010 (860) 585‑3000

Group practices

Medicare enrollment lists Rainer W. Bagdasarian as a member of this group (CMS data updated October 2, 2026).

• Bristol Hospital Multi Specialty Group, Inc.148 clinicians in the group

Specialties

• General Surgeryprimary
• Vascular Surgeryalso

Find other General Surgery doctors in Connecticut →

Other general surgeons in Bristol

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

• Jianliang Man, MD
• Noelle A. Beauchemin, MD
• Tanya J. Olszewski, MD
• Larissa N. Pamen, MD
• Jennifer N. McCallister, MD

All general surgeons in Bristol →

Other clinicians in Bristol Hospital Multi Specialty Group, Inc.

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

• Michele P. Barry
• Rupalini Rawal-Dhingra, MD
• Cheryl D. Maida, CSW
• Greg Morgan, MD
• Craig Bogdanski
• Myah Bartolotta, PA

Clinician information

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