Our Physicians

Dr. Cheung was born and raised in Orange County, California and is 4th generation Asian American. She did her undergraduate work at UCLA where she received a Bachelor's degree in Biochemistry and was awarded Magna Cum Laude honors. She went on to purse a Masters in Public Health in Health Education and Health Policy at UCLA, where she was also awarded the distinction of Highest Honors. She completed her medical school training at UC San Diego School of Medicine in 2004, and completed her residency training at White Memorial Medical Center/Loma Linda University in Los Angeles where she was Chief Resident in Internal Medicine.

Dr. Jennifer Han is a Southern California native, born and raised in the South Bay. She completed her undergraduate education at UC Berkeley as a Regent’s Scholar and double majored in Business Administration and Molecular & Cell Biology. She earned her medical degree from the Drexel University College of Medicine as a member of the Alpha Omega Alpha, honor society. She completed her training in Internal Medicine residency and Endocrinology fellowship at UCLA where she remained on as faculty. In addition to treating general endocrinology, Dr. Han has a special interest in diabetes, prediabetes, obesity and endocrine disorders during pregnancy. In her free time, she enjoys photography, reading, and fine dining.

Dr. Huma Hasnain is a nephrologist who has an outpatient practice in Torrance. She also treats patients at Little Company of Mary Hospital and Torrance Memorial Hospital. She is board certified in internal medicine and nephrology, and is a member of the American Society of Nephrology and the National Kidney Foundation.

Dr. Michelle Hwang is a nephrologist who practices in Torrance. She enjoys practicing all aspects of general nephrology, with special interest in hypertension, chronic kidney disease, kidney transplant and preventive nephrology. In addition to her outpatient activity, she also sees patients at Torrance Memorial Medical Center, Little Company of Mary in Torrance and Little Company of Mary in San Pedro. She is fluent in Korean and Japanese.

Dr. Kasra Navabi is an endocrinologist who practices in Torrance. He treats patients with conditions including Type 1 and Type 2 diabetes mellitus, thyroid diseases, cancers of the endocrine glands, pituitary disorders, parathyroid disorders, adrenal disorders, osteoporosis, obesity, insulin secreting tumors, abnormal menstrual cycles, hirsutism, loss of sexual interest, diminished testosterone production, cholesterol disorders and hypertension. He also conducts research on diabetes and general endocrinology, which has been published in several medical journals.

Dr. Shieh grew up in the Greater Boston area, and received his undergraduate degree in Biology from the Massachusetts Institute of Technology. He then moved to New York City, where he earned his medical degree and completed his Internal Medicine residency training at Weill Cornell Medical College. After his residency, he moved to Los Angeles, where he went to UCLA for his Endocrinology fellowship. During this fellowship, he received training in all areas of clinical endocrinology, as well as extensive clinical and research training in osteoporosis from world leaders in the field. Dr. Shieh has been on the UCLA faculty since 2016. He currently sees patients at both the Westwood campus and in the South Bay. His clinical practice focuses on osteoporosis and calcium disorders, but he is also interested in general endocrinology. Dr. Shieh remains actively involved in osteoporosis research, and has published in top journals in his field, including the Journal of Clinical Endocrinology & Metabolism, the Journal of Bone and Mineral Research, and Osteoporosis International. He has served as guest editor of the Bone Disorders issue of Endocrinology & Metabolism Clinics of North America, and is currently a reviewer for Osteoporosis International and Bone. In his free time, he enjoys spending time with his wife and two baby girls, going to the driving range and batting cage, and traveling. He is fluent in Mandarin.