Sutter Delta Medical Center
Dr. Romero is a general orthopedic surgeon performing non-operative care, joint replacement, fracture care, and surgery in the upper and lower extremities. She treats patients for elbow, ankle, knee, shoulder, and hip injuries and issues. She has a particular interest in minimally invasive surgery and arthroscopy and specializes in orthopedic surgery, sports medicine and sports related injuries. Dr. Romero is able to perform hip arthroscopy, a recently emerging surgical technique for bursitis and hip impingement. Dr. Romero completed her medical school training at the University of California, San Francisco. After completing her orthopedic surgical training at UCLA-Harbor, she returned to the Bay Area for her fellowship in sports medicine. Dr. Romero has had extensive experience in sideline management of sports injuries. During her fellowship, she provided orthopedic care to the Santa Clara University sports teams and several local Bay Area junior college sports teams. She has completed additional training in arthroscopy and sports medicine at the SOAR group in the San Francisco Bay Area. She has conducted laboratory research in fracture healing and clinical studies in pain pump use in arthroscopic shoulder surgery. Dr. Romero emphasizes patient-centered care and focuses on understanding the needs and physical demands of each patient so she can treat accordingly. She is board certified as a diplomate of the American Board of Orthopedic Surgery. Dr. Romero joined Bay Area Surgical Specialists in June 2014. She sees patients in Antioch and Walnut Creek.
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: University of California San Francisco
Internship: Harbor UCLA Medical Center in Torrance, California
Residency: Harbor UCLA Medical Center in Torrance, California
Fellowship: University of California San Francisco and SOAR Medical in Redwood City, California
Sutter Delta Medical Center