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About Me

Marlys Drange, MD, PhD earned her medical degree, as well as a doctorate in cancer biology, at Stanford University in Stanford, Calif. A Montana native, Dr. Drange received a Bachelor of Science in Microbiology from Montana State University in Bozeman. She completed clinical training with internal medicine internship and residency at Stanford Health Services followed by a fellowship in endocrinology, diabetes and metabolism at Cedars Sinai Medical Center in Los Angeles, Calif.

Dr. Drange is board certified by the American Board of Internal Medicine, in Endocrinology, Diabetes and Metabolism. She is a fellow of the American College of Endocrinology. She has been in clinical practice since 1999.

In her free time, Dr. Drange enjoys hiking and gardening. She is an avid reader of fiction.

Education & Training

Medical School

Stanford University School of Medicine


Stanford Health Services


Stanford Health Services


Cedars Sinai Medical Center

Board Certifications/ Memberships/Fellowships

American Board of Internal Medicine, Endocrinology, Diabetes and Metabolism; American College of Endocrinology


St. Peter's Health accepts most major insurances but may not be contracted with them all. To verify if we are in-network with your specific insurance, contact your insurance carrier.

Patients are expected to furnish all the necessary health insurance information and sign the medical release and insurance assignment authorizations. St. Peter’s Health will submit complete insurance claims on the appropriate forms for the charges recorded. 

Keep in mind that insurance is a contract between the patient and his or her insurance company and that St. Peter’s Health is acting only as a billing agent. St. Peter’s Health cannot pursue payment from insurance carriers in the event of non-payment or benefit denials. If a patient’s insurance carrier has not submitted payment within 30 days of billing, St. Peter’s Health expects the patient to pay the balance in full. Patients receive a monthly statement showing any account activity and the remaining balance due.