Dr. John WenholdD.O.

Dr. Wenhold treats a wide range of conditions including low testosterone, menopause, perimenopause, postmenopause, diabetes, hypertension, insulin resistance, obesity, osteoporosis, cardiovascular disease, metabolic syndrome, thyroid disorders, autoimmune disease, chronic inflammation, and sarcopenia. His functional medicine approach means he focuses on root causes rather than managing symptoms in isolation.

Yes. Dr. Wenhold holds board certification in Family Medicine from the American Board of Family Medicine. He also holds the NAMS Certified Menopause Practitioner credential from the North American Menopause Society, reflecting specialized training in evidence-based hormone therapy and midlife women's health.

Dr. Wenhold completed his medical degree at UNTHSC-TCOM in Fort Worth, TX and his residency at Christus Spohn Hospital Corpus Christi. He earned his undergraduate degree in Biology from Baylor University. After residency, he practiced emergency medicine for eight years before founding Marathon Direct Primary Care.

Dr. Wenhold uses DUTCH hormone testing to guide hormone replacement therapy for both men and women. He works with testosterone, estrogen, progesterone, and DHEA. For women, his NAMS certification supports a physiology-driven, individualized approach to hormonal transitions across perimenopause, menopause, and postmenopause.

Yes. Dr. Wenhold performs VO2 max testing on a treadmill using a VO2 analyzer. Members receive quarterly VO2 max assessments as part of their membership. Non-members can also purchase individual tests or a four-test bundle directly from the practice.

Dr. Wenhold builds each member's care around the core foundations of health: nutrition, sleep, fitness, and stress. He uses advanced biomarker tracking, body composition analysis, VO2 max data, and continuous glucose monitoring to develop long-term strategies for health and performance. He applies these same principles to his own training as an endurance athlete.

Yes. Dr. Wenhold is a NAMS Certified Menopause Practitioner. He manages perimenopause, menopause, and postmenopause with both hormonal and non-hormonal treatment options. He uses DUTCH hormone testing to personalize therapy and takes an evidence-based approach to every stage of the hormonal transition.

Dr. Wenhold creates personalized nutrition plans based on objective body composition data from DEXA and InBody scans. He provides custom fitness programming through an app and performs quarterly strength and cardiorespiratory fitness assessments including force plate analysis. Members track meals through an app with meal scoring built in.