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Naturopathic Medical Doctors in San Diego

Our Doctors

Dr. Mark Stengler, NMD, MS, is one of the most respected integrative doctors in America. He was voted 2019 Doctor of the Year, 2021 Doctor of the Decade, by the prestigious International Association of Top Professionals, and 2024 Top Naturopathic Medical Doctor in California by Best In California magazine.
Dr. Angela Stengler, NMD, MS, strives to give the patient the power to improve his or her quality of life.

A picture of Dr. Mark Stengler and Dr. Angela Stengler

Dr. Mark Stengler, NMD, MS

As a Naturopathic Medical Doctor, Dr. Stengler received training in both conventional medicine and natural alternatives. He has been in private practice for almost thirty years and has helped tens of thousands with integrative medicine. He was voted 2021 Doctor of the Decade by the International Association of Top Professionals. Dr. Stengler served on a medical advisory committee for the Yale University Complementary Medicine Outcomes Research Project.

Dr. Stengler is the author/co-author of more than 20 books including the bestselling Prescription For Natural Cures, Outside The Box Cancer Therapies, and Healing The Prostate. His most recent book is The Holistic Guide To Gut Health: Discover the Truth About Leaky Gut, Balancing Your Microbiome, and Restoring Whole-Body Health. He has been published in several peer-reviewed medical journals including The International Journal of Family & Community Medicine, Endocrinology & Metabolism International Journal, Journal of Nutritional Health & Food Engineering, and Alternative Therapies in Health and Medicine. In addition, Dr. Stengler writes weekly articles in his online newsletter Dr. Stengler’s Health Breakthroughs.

Dr. Stengler received his Doctorate of Naturopathic Medicine from the National University of Natural Medicine. He also has a Master of Science in Human Biology from Liberty University. Additional degrees include a Master of Religious Studies and a Bachelor of Arts in Liberal Arts. In addition, Dr. Stengler has a certificate in Advanced Metabolic Endocrinology from The Metabolic Medical Institute. He has completed coursework in Logic and Reasoning from Oxford University.

His training included a standard medical curriculum that included diagnosis, laboratory testing, pharmacology, emergency medicine, and minor surgery, Dr. Stengler’s integrative medical education also had him complete training in bio-identical hormones, intravenous nutrient therapy, chelation therapy, ozone therapy, clinical nutrition, nutritional supplements, Chinese medicine, botanical medicine, psychology, counseling, and pharmacogenomics.

Dr. Stengler enjoys working with his wife, Dr. Angela Stengler, at the Stengler Center For Integrative Medicine in Encinitas, California.

A picture of Dr. Mark Stengler at the clinic


  • Licensed to practice as a Naturopathic Medical Doctor in California and Arizona
  • American Association of Naturopathic Physicians
  • Member of the Endocrinology Association of Naturopathic Physicians
  • California Naturopathic Doctors Association
  • Member of the American Academy of Anti-Aging Medicine (A4M)
A picture of Dr. Mark Stengler
A picture of Dr. Mark Stengler at the clinicDr Stengler meets with a female patient who is sitting on a brown chair

My Philosophy

My extensive training in both conventional medicine and natural alternatives has given me the tools to provide the perfect combination of advanced modern technology and powerful time-tested traditional therapies. At my holistic medicine clinic, Stengler Center for Integrative Medicine, my philosophy is to focus on treating the whole person, not just the symptoms of disease.

I believe that the body has an innate ability to heal itself when given the proper support, which is why I take a personalized approach to each patient's care. By understanding your unique health challenges and goals, I can create a customized treatment plan that combines the best of modern medicine and natural healing techniques.I also believe in the power of education and prevention, which is why I strive to empower my patients with the knowledge and tools they need to take control of their own health. Through ongoing support and guidance, I aim to help my patients achieve optimal wellness and a higher quality of life.

A photo of Dr. Mark Stengler

Dr. Mark Stengler

About The Stengler Center

Dr. Angela Stengler, NMD, MS

Dr. Stengler is a licensed naturopathic medical doctor who has a passion for helping patients using nutritional and natural therapies. Her introduction to holistic medicine began in college during her junior year abroad while studying in England. She experienced first-hand the dramatic healing effects of a topical herbal therapy prescribed by a nurse for her injured foot. This positive experience, along with support from her pre-medical advisor who was researching the use of Chinese mushrooms and cancer, led to her decision to focus on integrative medicine instead of conventional medicine.

  • American Association of Naturopathic Physicians
  • California Naturopathic Doctors Association--current board member
A picture of Dr. Angela Stengler
International Association of Top Professionals

Dr. Mark Stengler, NMD, MS Doctor of the Decade

Dr. Stengler was chosen as 2021 Doctor of the Decade by the International Association of Top Professionals. The IAOTP handpicks the world’s finest, most prestigious top professionals from different industries.

A log of IAOTP

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