John Muir Health Walnut Creek Medical Center
John Muir Health Concord Medical Center
Randall Wenokur, M.D. is certified by the American Board of Otolaryngology. He received his ear, nose, throat, head and neck surgery training at UCLA Medical Center. He then went on to take a full time faculty position at Harvard Medical School and Massachusetts Eye and Ear Infirmary. He has presented his research at national meetings and has numerous research articles published in peer review academic journals. Dr. Wenokur has been treating patients in Contra Costa County since 1996 and is an active staff member at both John Muir Medical Center Concord and Walnut Creek hospitals. Dr. Wenokur has proficiency in treating all aspects of ear, nose, and throat problems, including snoring/sleep apnea (eastbaysnoring.com), sinus, and pediatrics. He has special interest and training in the treatment of voice disorders, and has cared for many professional voice users including internationally famous performers. Dr. Wenokur is very involved within the local medical community and has served on many hospital committees. He is a former Chief of Staff and Chief of the Department of Surgery at John Muir. Dr. Wenokur is on the board of the Pacific Voice Foundation.
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: Wayne State University School of Medicine in Detroit, Michigan
Internship: University of California Los Angeles
Residency: University of California Los Angeles