Marcie Ryan was born in Bangor, Maine and raised in Ghana and South Africa. She has been interested in medicine since the age of 12 and remains in awe of the human body to this day. Marcie moved to the United States after high school to pursue an education in medicine and graduated from Northeastern University in Boston, Massachusetts, with a master’s in physician assistant studies. She spent her first six years of practice in a community health center outside of Boston where she practiced adult medicine with a special interest in treating refugees and homeless patients. Marcie moved to the East Bay in 2010 and has been practicing in a private family medicine clinic in Oakland since then. She loves primary care because of the potential to develop lasting relationships with patients and because of the variety of medical problems she encounters. Marcie is happily married with four young, active children and when she has free time she enjoys music, photography, triathlons and traveling.
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!
Masters Degree: Physician Assistant
Northeastern University in Boston, Massachusetts