Stefan G. Kostadinov, MD

Practice locations

Addresses where Stefan G. Kostadinov is enrolled with Medicare (CMS data updated October 2, 2026).

• 101 Dudley StProvidence, RI 02905 (401) 274‑1122
• 300 Halket StPittsburgh, PA 15213 (412) 647‑6000

Group practices

Medicare enrollment lists Stefan G. Kostadinov as a member of these groups (CMS data updated October 2, 2026).

• University of Pittsburgh Physicians4,236 clinicians in the group
• Affinity Physicians LLC.730 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Rhode Island →

Other pathologists in Providence

Clinicians with the same Medicare primary specialty in Providence, RI — not a recommendation.

• Jeffrey A. Bailey, MD
• Shivali Marketkar, MD
• Michael Punsoni, MD
• Yun-An Tseng, DO
• Christian L. Nixon, MD
• Burak Bahar, MD
• Jonathan D. Kurtis, MD
• Nina Tatevian, MD

All pathologists in Providence →

Other clinicians in University of Pittsburgh Physicians

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

• Sowmya Varre, MD
• Meredith Spada, MD
• Jessica B. Walters
• James C. Bayley, MD
• Alexander P. Preus, MD
• Jason B. Rosenstock, 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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
3. Medicare Care Compare — official Medicare tool to look up clinicians