Program Director

Sirvard Khanoyan, M.D. - Program Director

Shirin-AghazadeAfter receiving her undergraduate degree from UCLA, Dr. Sirvard Khanoyan attended medical school at Tufts University School of Medicine. She, then, returned to Glendale to complete her residency training in Family Medicine at Adventist Health Glendale’s Family Medicine Residency Program. After completing her residency training in 2004, Dr. Khanoyan joined the faculty. She led the clinical and team and the residents with conviction and enthusiasm as the Medical Director of the Family Medicine Center for 12 years prior to taking on the role of Program Director in 2017.
Dr. Khanoyan is fluent in Armenian and speaks some Spanish. In her free time, she enjoys traveling with her husband and three daughters. She especially values her participation in Medical Mission trips through Adventist Health Glendale.


Mary Antossyan, D.O. – Medical Director

Dr. Mary Antossyan was born in Armenia, but has spent most of her life in the community she currently serves: Glendale, CA. After attending California State University Los Angeles for her undergraduate studies, she pursued medical education at Western University College of Osteopathic Medicine. She completed her residency training in Family Medicine at Adventist Health Glendale, acting as Chief Resident in her third year. She joined the program’s faculty in 2017 as the Medical Director of the Family Medicine Center. She is also the program’s advisor for osteopathic manipulative medicine for residents who choose to offer and implement osteopathy in their patient care.
Dr. Antossyan spends most of her time outside of work with family. She enjoys weekend getaways for wine tasting in the summer and snow in the winter. She enjoys good food, reading insightful books, and staying active with intense cycling.

Jack Yu, M.D. – Associate Director

Dr. Jack YuDr. Yu was born in Taiwan and grew up in Seattle. After graduating from Stanford University, he attended Boston University for medical school, then completed his Family Medicine Residency training at UCLA. Prior to joining the faculty of Adventist Health Glendale’s Family Medicine Residency Program in 1990, he worked in private practice, emergency rooms, Kaiser and group practices.
Dr. Yu has a Master’s Degree in Medical Education and completed a Faculty Development Fellowship at USC. He does OB and is also board certified in Sports Medicine, Geriatrics, Hospice and Palliative Medicine. His research interests include Obstetrics in the Asian population and Point of Care ultrasound.
His wife is an administrator for a child evangelism fellowship and has two grown daughters. One is a medical student, soon to be Resident, and the other is a statistician for Disney Studios and Disney+. In his free time, Dr. Yu teaches elementary children at his church, organizes the hospital basketball team, and hosts resident wellness events at his home.

Charles Peterson, D.O. – Director of Addiction Medicine

charles petersonDr. Peterson was born and raised in sunny Southern California. He completed his undergraduate degree in Biochemistry at CSUSB; then, continued his education for an additional 2 years to complete research in an influenza lab and receive a Master’s degree in Biology. Dr. Peterson attended medical school at Touro University - Nevada College of Osteopathic Medicine, near Las Vegas, where he still continues to frequent almost monthly for wining and dining with his medical school friends.
Dr. Peterson completed his family medicine residency training at Adventist Health Glendale. After graduating, he joined the residency faculty spending a large portion of his time creating an addiction medicine curriculum, while also acting as Director of AHGL’s Chemical Dependency Program.
When he is not wining and dining in Las Vegas, Dr. Peterson enjoys the hikes, beaches, fitness facilities and night life that LA has to offer.

Brian Kan, M.D. – Director of In-Patient Medicine

Brian KanDr. Kan joined the Family Medicine Residency Faculty in 2018 as the Director of Inpatient Medicine. He is is dually certified in Internal Medicine and Pediatrics. His undergraduate degree is in Biochemistry from the University of California, Berkeley. His MD degree is from the FUHS/Chicago Medical School. He completed a residency and chief residency at Cedars-Sinai’s Combined Internal Medicine & Pediatrics residency training program. After residency, Dr. Kan went on to complete a fellowship in Clinical Decision Making and Medical Computer Science at Tuft’s New England Medical Center. During fellowship training, he received an MS degree in Clinical Epidemiology from the Harvard School of Public Health.
Dr. Kan has spent most of his career in academic medicine including nearly 20 years at Cedars-Sinai Medical Center & UCLA where he advanced to Associate Clinical Professor of Internal Medicine and Associate Clinical Professor of Pediatrics at the Geffen School of Medicine at UCLA. He was also the Program Director of the Combined Internal Medicine and Pediatrics residency training program at Cedars-Sinai for over ten years. Along with overseeing the residency training program’s inpatient service, Dr. Kan teaches the family medicine residents on newborn medicine, primary pediatric care, and challenging pediatric problems seen in outpatient settings.

Sarah Beaty, D.O. – Clinical Faculty

Sarah BeatyDr. Beaty is originally from Sherman, TX, but spent her high school years in Los Angeles, CA. She attended UCLA for undergrad, then returned to her native roots to attend medical school at Texas School of Osteopathic Medicine in Fort Worth. After medical school, she returned to California to complete her family medicine residency training at Adventist Health Glendale where she was voted Most Inspirational Resident during her third year.
In 2017, she joined the faculty at Adventist Health Glendale, where she specializes in Women’s Health, including prenatal and postpartum care, minimally invasive gynecologic procedures, contraception management and has a special interest in breastfeeding medicine.
Dr. Beaty lives in South Pasadena with her husband and 3 young children. In her free time, she loves traveling with her family, hiking, and camping.

Araz Melkonian, M.D. – Clinical Faculty

Araz MelkonianDr. Melkonian is a board certified family physician. He completed his residency training at Adventist Health Glendale, where he served as Chief Resident during his final year. After residency, he continued his post-graduate training in an Internal Medicine/Geriatrics Medicine fellowship at Los Angeles County – University of Southern California (LAC+USC). Dr. Melkonian joined the AHGL FMRP faculty in July 2020. He is currently practicing the full spectrum of family medicine, focusing primarily on quality of life and functional ability of the elderly population. Besides English, he is fluent in Armenian and Arabic. Dr. Melkonian enjoys participating in medical mission trips with Adventist Health. Outside of work, Dr. Melkonian enjoys spending time with his family and friends, watching movies, exploring new restaurants and outdoor activities in Southern California.