Stephen J. Koewler, MD
About This Business
Stephen J. Koewler, MD, is an internal medicine physician in Evansville, Indiana, with 39 years of experience since graduating from Indiana University School of Medicine in 1987, above the 22-year average among the 220 Evansville physicians in our directory. His Medicare profile lists removal of skin lesions and skin biopsy among his most frequent procedures. He is affiliated with Ascension St Vincent Evansville, Deaconess Hospital Inc, The Women's Hospital, Ascension St Vincent Warrick, and Gibson General Hospital. In MIPS, the federal program scoring Medicare clinicians on quality and cost, he holds the highest score of 95.6 out of 100 among the 46 rated physicians in our Evansville listings. He is one of 14 internal medicine physicians in our directory. He accepts Medicare; telehealth is not listed among his services. Patient sentiment is exceptional: a 4.9 rating across 132 reviews.
Verified Provider Info
- Specialty (per registry)
- Internal Medicine
- NPI Number
- 1467439844
- Medical school graduate
- 1987 (39+ years of practice)
- Medical school
- INDIANA UNIVERSITY SCHOOL OF MEDICINE
- State license
- 01036949A (IN)
- Hospital affiliations
- Ascension St Vincent Evansville · Deaconess Hospital Inc · the Women'S Hospital
- Quality score (CMS MIPS)
- 95.6/100
- Common services (Medicare data)
- Removal of skin lesions · Skin biopsy
Source: NPPES NPI Registry (CMS) · CMS Doctors & Clinicians dataset · checked 2026-08-19
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Information last updated: September 7, 2026
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