Dr. Glenn A. Marshak is an internist in Los Angeles, California and is affiliated with multiple hospitals in the area, including Cedars-Sinai Medical Center and Mission Community Hospital. He received his medical degree from Chicago Medical School/Rosalind Franklin University of Medicine Science and has been in practice for more than 20 years. Dr. Glenn A. Marshak accepts Medicare, Blue Cross - see other insurance plans accepted. Dr. Glenn A. Marshak is highly recommended by patients.