Dr. Brian LenzkesMD

Internal Medicine

at San Diego Metabolic Health & Direct Primary Care — San Diego, CA

About

Dr. Brian Lenzkes is a San Diego-based internal medicine physician with a deep focus on clinical nutrition and metabolic health. He earned his Bachelor of Science in Biology from UC Irvine before graduating from the University of Southern California Medical School in 1999. He completed his residency at Scripps Mercy Hospital in San Diego. He extended that training by an additional year, serving as Chief Resident before entering private practice.

Dr. Lenzkes ran a group medical practice from 2004 to 2020, then launched the independent membership-based practice now known as San Diego Metabolic Health & Direct Primary Care. He is a professional speaker in health and wellness. 3 million downloads. His clinical focus spans preventive medicine, metabolic disease reversal, and reducing patients' long-term reliance on medications.

Education & Training

Undergraduate

B.S. in Biology, UC Irvine

Medical School

University of Southern California Medical School (1999)

Residency

Internal Medicine, Scripps Mercy Hospital, San Diego; Chief Resident (additional year)

Conditions Treated

metabolic disease
diabetes
obesity
hormone imbalances
preventive health
hypertension
chronic disease

Who is Dr. Lenzkes right for?

Dr. Lenzkes is a strong fit for adults looking to address the root causes of metabolic disease. Patients managing diabetes, weight challenges, or hormone imbalances benefit from his targeted, evidence-based approach. He works well with patients who want to reduce their long-term reliance on medications. His telemedicine availability makes him accessible to patients across California and Arizona.

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Frequently Asked Questions

Dr. Lenzkes focuses on metabolic disease, diabetes management, medical weight loss, and hormone imbalances. He also provides full-scope internal and preventive medicine. His clinical approach targets root causes rather than symptom management alone.

Dr. Lenzkes trained in internal medicine, completing his residency at Scripps Mercy Hospital in San Diego. He served as Chief Resident before entering private practice. His specialties include internal medicine, functional medicine, and preventive medicine.

S. in Biology from UC Irvine and his medical degree from the University of Southern California Medical School in 1999. He completed his residency at Scripps Mercy Hospital in San Diego and served an additional year as Chief Resident.

Yes. Dr. Lenzkes offers telemedicine appointments for patients across California and Arizona. In-person visits take place at his San Diego office.

Dr. Lenzkes works to reduce patients' long-term reliance on medications wherever clinical evidence supports it. He uses diet, lifestyle interventions, and metabolic programs to address underlying health issues. Many patients find they need fewer medications as their health improves.

Dr. Lenzkes uses biofeedback tools like continuous glucose monitors to track patient health between visits. These tools help him make informed adjustments to each patient's program. Remote monitoring is available to telemedicine patients across California and Arizona.

Yes. Dr. Lenzkes offers bioidentical hormone replacement therapy as part of his membership programs. He assesses each patient individually to determine whether BHRT fits their clinical needs.

Dr. Lenzkes has spent decades focused on metabolic disease and clinical nutrition. He speaks professionally on health and wellness, and his work has generated more than three million podcast downloads. He brings that expertise directly into his patient care.

Doctor profile last updated March 21, 2026