About
Dr. Jack Penner founded Kuros Medical to practice medicine with the depth, continuity, and clinical rigor that thoughtful preventive care requires. S. in Public Health Sciences at Santa Clara University, where he also competed as an NCAA Division I water polo athlete. D. from Georgetown University School of Medicine, collecting multiple honors including the Leonard Tow Humanism in Medicine Award from the Arnold P. Gold Foundation, the Jesuit Leadership and Service Award, and recognition for excellence in physical diagnosis and teaching.
Dr. Penner completed his Internal Medicine residency at the University of California, San Francisco, then served as Chief Medical Resident. He joined the UCSF faculty, where he cared for patients, taught medical students and residents, and conducted research on clinical decision-making and diagnostic expertise. UCSF recognized him with several teaching honors, including the Harry Hollander Award for Clinical Reasoning Teaching. He holds board certification from the American Board of Internal Medicine. After residency, he pursued post-graduate clinical training in Analytical Psychology at The Salome Institute for Jungian Studies. That training informs his interest in the intersection of physiology and psychology, which he weaves into his clinical work alongside functional and integrative medicine. Beyond medicine, he stays active through strength training, swimming, running, and time outdoors. He also worked as a strength and conditioning coach and brings that performance background directly into how he guides patients on training, recovery, and longevity.
Education & Training
Undergraduate
Santa Clara University, B.S. in Public Health Sciences
Medical School
Georgetown University School of Medicine
Residency
Internal Medicine, University of California, San Francisco; Chief Medical Resident, University of California, San Francisco
Additional Training
Clinical Training in Analytical Psychology, The Salome Institute for Jungian Studies; UCSF faculty appointment with teaching and research in clinical decision-making and diagnostic expertise
Certifications
Conditions Treated
Who is Dr. Penner right for?
Dr. Penner works well with adults who approach their health as an active, long-term project. Patients who train regularly, value cognitive sharpness, and want to stay physically capable as they age find his performance-informed approach useful. He treats a wide range of conditions, including cardiovascular disease, metabolic syndrome, hormonal imbalance, diabetes, anxiety, depression, ADD/ADHD, autoimmune conditions, and chronic fatigue. Patients navigating the intersection of physical symptoms and emotional health often find his Jungian-informed perspective distinctive. His sliding scale memberships make him accessible to patients at different financial stages.
Similar Doctors Nearby
Dr. Lindsay KleinMD
hormonal imbalance, perimenopause, menopause +4 more
Dr. Denise HilliardMD
long COVID, dementia, obesity +4 more
Dr. Ari KatzMD
complex and critically ill conditions, preventive care, gut-brain health +2 more
Frequently Asked Questions
Dr. Penner treats a broad range of conditions, including cardiovascular disease, metabolic syndrome, hormonal imbalances, diabetes, ADD/ADHD, anxiety, depression, autoimmune conditions, chronic fatigue, digestive issues, chronic inflammation, skin conditions, and cognitive health concerns. He also supports patients with weight management, including GLP-1 medication protocols.
Dr. Penner draws from internal medicine, preventive medicine, functional medicine, and Jungian Analytical Psychology. He uses precise diagnostics alongside individualized lifestyle and training guidance. He pays particular attention to the intersection of physiology and psychology, especially in cases where physical symptoms and emotional health are closely linked.
D. from Georgetown University School of Medicine. He completed his Internal Medicine residency at the University of California, San Francisco, where he also served as Chief Medical Resident and later joined the faculty. After residency, he completed clinical training in Analytical Psychology at The Salome Institute for Jungian Studies.
Yes. Dr. Penner holds board certification from the American Board of Internal Medicine.
He does. Dr. Penner competed as an NCAA Division I water polo athlete at Santa Clara University and later worked as a strength and conditioning coach. He brings that background into his clinical work, particularly around exercise prescription, recovery, and performance-oriented longevity care.
Yes. Dr. Penner sees patients in both California and New York.
Yes. Dr. Penner offers clinician-to-clinician case consultations, with a particular focus on cases that bridge physical and emotional health. He welcomes outreach from therapists, integrative practitioners, primary care providers, fitness coaches, nutritionists, and other health professionals.
Dr. Penner is passionate about helping patients build durable health over decades, not just managing problems as they arise. His time at UCSF, combined with his background in sport and performance, shaped a view of health as something actively trained and sustained. That conviction sits at the center of how he practices medicine at Kuros Medical.
Doctor profile last updated April 3, 2026