HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / OH

DEREK HARSHAW, DO

INTERNAL MEDICINE

Medical school: LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE

Graduated: 2016

NPI: 1588010649

Practice Locations (5)

RIVER VALLEY PHYSICIANS LLC

123 W 6TH ST

EAST LIVERPOOL, OH 439202921

3303857170

RIVER VALLEY PHYSICIANS LLC

130 W 4TH ST

EAST LIVERPOOL, OH 439204528

3303857977

RIVER VALLEY PHYSICIANS LLC

15655 STATE ROUTE 170, SUITE H

EAST LIVERPOOL, OH 439209672

3309320183

RIVER VALLEY PHYSICIANS LLC

425 W 5TH ST

EAST LIVERPOOL, OH 439202405

RIVER VALLEY PHYSICIANS LLC

125 FOX LN

CHESTER, WV 260341601

3303866442

Source: CMS National Downloadable File, September 2026.