John Muir Health Walnut Creek Medical Center
San Ramon Regional Medical Center
Dr. Hoffmann takes time to get to know her patients in all aspects of their lives; physical, emotional, and social that will affect their overall well-being. It is in knowing and listening to each individual that is the key in developing a unique plan of care. Her approach is an emphasis on preventative health and wellness practices, to proactively reduce risks for illness. She encourages her patients to become a well-informed participant in a partnership to achieve optimal health for the long-term. Dr. Hoffmann completed her Internal Medicine Residency in New York and is a Board Certified Internal Medicine physician. A California native, she has settled in the East Bay with her family since 1996.
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 the East Ramon Magsaysay Memorial Medical Center in Quezon City, Philippines
Residency: Saint Barnabas Hospital in Bronx, New York