Dr. Sean Martin is a California native that earned his Bachelor of Science Degree in Physiology at the University of California, Santa Barbara. He then earned his Medical Degree from the Uniformed Services University of the Health Sciences in Bethesda, MD in 2004. From there he returned to California and completed his general surgery residency training at LAC-USC in Los Angeles in 2009. From 2009-2016, he finished his 16-year active duty military service at Travis AFB, where he had an established general surgery practice and served as an associate professor and the joint program director for the general surgery residency between UC Davis Medical Center and David Grant Medical Center. While on active duty, Dr. Martin simultaneously operated within the Sacramento regional area trauma centers providing trauma, critical care, and emergency surgery. He has deployed overseas and earned a Bronze Star Medal for his meritorious surgical services in Afghanistan’s combat zones. Immediately following his active duty commitment in 2016, Dr. Martin further advanced his skill set by completing fellowship training in surgical critical care at the UC Davis Medical Center. In addition to his surgical practice in the East Bay Area, Dr. Martin is concurrently serving in the USAF reserves. Dr. Martin is double board certified by the American Board of Surgery and is a fellow of the American College of Surgeons.
Dr. Audrey "Lisa" Arzamendi is double board-certified in internal medicine and endocrinology. Since 2012, she has specialized in diabetes, obesity and metabolism, thyroid disease (including Hashimoto's and Graves'), polycystic ovary syndrome (PCOS) and sex hormone disorders, adrenal and pituitary dysfunction, osteoporosis, parathyroid/calcium disorders, and thyroid and parathyroid nodules and cancers. She is highly trained in ultrasound-guided fine-needle aspiration (FNA) biopsy of the thyroid (99% diagnostic rate).
Dr. Arzamendi is committed to safe and established medical treatments, and prides herself on staying informed about emerging therapies and research-supported non-prescription options. She is experienced working with all forms of brand-name and generic thyroid medications, and as a type 1 diabetic herself, has first-hand knowledge of nearly all available prescription and technological diabetic treatments, to best support patients in selecting their optimal diabetes treatment regimens.
Dr. Arzamendi graduated with honors from Stanford University, with a BA in Human Biology and a concentration in Health & Human Performance. She attended UC San Diego School of Medicine (receiving a federal NIH National Cancer Institute fellowship), and completed her internal medicine residency at Kaiser Pemanente’s Santa Clara Medical Center. Her endocrinology training was completed at UC Davis Medical Center. She previously practiced in California's South Bay before relocating to open her practice in Walnut Creek in 2020. Dr. Arzamendi was a Stanford varsity athlete and still enjoys running, hiking, tennis, rowing, and other outdoor activities. She loves spending time with her husband and many pets, and looks forward to being your doctor!
Medical School:Uniformed Services University of the Health Sciences in Bethesda, Maryland
Internship: Travis AFB and University of California Davis
Residency: University of Southern California in Los Angeles
Fellowship: University of California Davis in Sacramento