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 / CA

MARK T RUSSELL, MD

EMERGENCY MEDICINE

Medical school: UNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE

Graduated: 2007

Offers telehealth

NPI: 1457555864

Practice Locations (2)

SYNERGY OBSERVATION SPECIALISTS PC

2975 SYCAMORE DR

SIMI VALLEY, CA 930651201

8059556000

FRANCISCAN MEDICAL GROUP

VENTURA, CA 93001

2537924363

Source: CMS National Downloadable File, September 2026.