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 / MO

MARK H GREGORY, MD

INTERNAL MEDICINE

Medical school: UNIVERSITY OF VERMONT COLLEGE OF MEDICINE

Graduated: 1986

Offers telehealth

NPI: 1104843663

Practice Locations (1)

555 N NEW BALLAS RD, SUITE 110

SAINT LOUIS, MO 631416884

3148728470

Source: CMS National Downloadable File, September 2026.

MARK GREGORY, MD | HealthCareAtlasUSA