Tanya J. Olszewski, MD

Medicare activity in 2024

Official CMS public-use data for Tanya J. Olszewski, 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. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)105 services
2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)13 services
3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)11 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%
• Arthritis38%
• Ischemic heart disease38%
• Diabetes36%
• Chronic kidney disease33%

Hospitals where Tanya J. Olszewski works

Medicare's Facility Affiliation Data lists Tanya J. Olszewski 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
• John Dempsey Hospital of the University of ConnectFarmington, CT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 070036

Practice locations

Addresses where Tanya J. Olszewski is enrolled with Medicare (CMS data updated October 2, 2026).

• 25 Newell Rd, D 25Bristol, CT 06010 (860) 314‑6020
• 41 Brewster RdBristol, CT 06010 (860) 585‑3000

Group practices

Medicare enrollment lists Tanya J. Olszewski 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

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.

• Larissa N. Pamen, MD
• Jennifer N. McCallister, MD
• Rainer W. Bagdasarian, MD
• Jianliang Man, MD
• Noelle A. Beauchemin, 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.

• Matthew Champeau
• Morenikeji A. Buraimoh, MD
• William T. Marshall, DO
• Driola Brahaj, MD
• Kathleen Nugent
• Balasubramanian Shanmugam, MD

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