John Muir Health Walnut Creek Medical Center
John Muir Health Concord Medical Center
Surgical Critical Care
Doctor Zink earned his Bachelor of Science degree with honors, from The Citadel, Military College of South Carolina. He received his medical degree from the University of South Carolina, School of Medicine, and graduated magna cum laude. Following his passion for general surgery he completed his general surgery residency at Emory University. During his education and training he worked for the Georgia Army National Guard as a Medical Command Captain. The National Guard acknowledged his commitment by awarding him the Army Reserve Components Achievement medal and Armed Forces Reserve medal. After completing his time with the national guard and finishing his residency in general surgery, he moved to Dallas, Texas where he completed a trauma and critical care surgery fellowship at the University of Texas Southwestern.
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 South Carolina School of Medicine in Columbia
Internship: Emory University School of Medicine in Atlanta, Georgia
Residency: Emory University School of Medicine in Atlanta, Georgia
Fellowship: University of Texas Southwestern in Dallas