The Medical Institute of Healthy Aging (MIHA) in Walnut Creek, California is a pioneering longevity medicine practice built around the science of Valengerontology — the discipline of health optimization and disease prevention through personalized, data-driven care. Founded and led by Dr. Paul H. Kim, MD, MIHA doesn't wait for illness to strike. Instead, the practice measures how patients are aging at the cellular level and builds fully customized care plans to extend vitality and healthspan. With locations in Walnut Creek, Napa, and San Francisco — and virtual programs serving patients in California, Florida, Kansas, and Missouri — MIHA represents a new standard in proactive, precision longevity medicine.

About the Physician

Dr. Paul H. Kim is the Founder and Medical Director of the Medical Institute of Healthy Aging and a board-certified physician with over two decades of clinical experience. Rooted in internal medicine and driven by a passion for proactive care, Dr. Kim has dedicated his practice to the science of Valengerontology — using advanced diagnostics and personalized therapies to help patients reduce biological age, prevent chronic disease, and build lasting vitality. His approach is grounded in the belief that health is something you build actively, not something you lose passively — and his track record with patients reflects that philosophy. Dr. Kim is widely regarded for spending significant time with each patient and staying current with rapidly evolving longevity science.

Services Offered

• MIHA Fundamental BioAGE & BHResT Programs — MIHA's signature longevity programs use biological age testing and hormone restoration protocols to build fully customized, data-backed care plans designed to reduce cellular aging and restore vitality.
• Advanced Biological Age & Multi-System Testing — Cutting-edge diagnostics including biological age testing, brain age testing, artery age testing, lung age testing, InBody body composition analysis, advanced biochemical panels, and comprehensive stool, saliva, and urine testing.
• IV Therapies — A full suite of intravenous therapies: NAD+/Nicotinamide Riboside IV, Plaquex IV (phospholipid therapy), Glutathione IV, Vitamin C / Alpha Lipoic Acid IV, and Autologous MSC IV — supporting mitochondrial function, cellular detox, and anti-aging.
• Peptide Therapy — Evidence-based peptide protocols including BPC-157, Sermorelin, CJC-1295/Ipamorelin, Thymosin Alpha 1, Thymosin Beta 4, Semaglutide + Cagrilintide, and Tirzepatide.
• Stem Cell & Regenerative Therapies — Mesenchymal stem cell support, PRP therapy, birth-derived tissue, and regenerative joint injections for cellular rejuvenation and tissue repair.
• Arteriometabolic & Cancer Prevention Modules — Specialized health modules targeting cardiovascular/metabolic optimization and early detection of aberrant cell growth.
• BTL Body & Brain Technologies — EMSCULPT (muscle building/fat reduction), EXOMIND (cognitive brain stimulation), and EMSELLA (pelvic floor restoration).
• Medical Weight Loss — Physician-supervised weight management incorporating GLP-1 peptides, hormone optimization, and metabolic support.
• Virtual Programs — Previ Virtual Hormone Restoration and Previ Virtual Weight Management for remote patients in CA, FL, KS, and MO.

What to Expect

MIHA's Walnut Creek clinic is at 1776 Ygnacio Valley Road, Suite 204, Walnut Creek, CA 94598. Hours are Monday through Thursday 8:30am–4:30pm and Friday 8:30am–3:00pm. Call (925) 979-0979 or visit mdiha.com to schedule. Napa: (707) 266-2277. San Francisco area: (650) 779-7201.