You only have one life. Make the most of it.


Dr. Chris Renna

Dr. Renna graduated from University of Texas, earned his medical degree cum laude from the University of North Texas Health Science Center and completed a residency in family medicine. In his initial years of practice, he learned that medical school prepared doctors to diagnose disease but did not prepare them to create health.

Dr. Renna decided to truly help his clients improve health, he needed to create an entirely new system and approach.  This was the beginning of LifeSpan medicine.  LifeSpan provides comprehensive and focused medical evaluations specializing in preventing disease, resolving symptoms and improving health.  These programs are delivered through personalized concierge support, access to your medical team 24/7 and exceptional follow up. 

Since founding LifeSpan medicine in 1992, Dr. Renna has maintained a small practice focused on optimal health with two rules. 

Everything is about you.
Everything is about your health.

Over the years his passion and dedication to clients as well as his unique approach has earned him an exceptional reputation as the nation’s premiere preventive medicine provider. He is a published author, popular public speaker and lecturer to audiences across the United States and abroad.

“Dr. Renna changed my life. All of the injuries from my athletic youth were starting to add up and the constant pain from arthritis seemed to be something I was going to have to live with. Since having the injections I have been able to ski..and to live my active life without having to manage pain.”


Dr. Moshe Ben-Roohi

Moshe Ben-Roohi, M.D. specializes in advanced non-surgical orthopedics and regenerative treatments for sports injuries, degenerative joint disease, and conditions of the spine. He often works with clients who have tried everything else and failed. 

He is double board certified in Physical Medicine and Rehabilitation (PM&R) and Pain Medicine. He obtained his medical degree at Tel-Aviv University’s Sackler School of Medicine and residency at NYU Medical Center and Hospital for Joint Diseases where he served as Chief Resident. After residency he completed a fellowship in Interventional Spine and Sports Medicine. 

Dr. Ben-Roohi maintains his role in academic medicine through his continued pursuit of ongoing research. He has published numerous scientific papers in PM&R and other peer reviewed journals. He is a frequent speaker on the subjects of Sports Medicine, Pain Management and Molecular Orthopedics. Dr. Ben-Roohi is a member of the American Medical Society for Sports Medicine (AMSSM), North American Spine Society (NASS), International Spine Intervention Society (ISIS), International Cellular Medicine Society (ICMS), American Academy of Orthopedic Medicine (AAOM), Institute for Functional Medicine (IFM) and the American Academy of Physical Medicine and Rehabilitation (AAPMR).

Dr. Rachael Gonzalez

Dr. Gonzalez attended Harvard College and graduated with honors with a degree in Biology. She graduated from the University of California, San Diego School of Medicine and completed her family practice residency at Riverside General Hospital. Dr. Gonzalez served as a Medical Director in the Methodist Hospital system. 

In 1996, she relocated to the Pacific Northwest and as an employed physician in large organizations, she saw that medicine delivered in these settings was not remotely meeting her standards for individualized patient-focused care. Her passion for really delivering comprehensive and preventive health care to her patients inspired her to open a solo practice, Paradigm Family Medicine. 

Dr. Gonzalez began training in Functional Medicine and completed the Institute for Functional Medicine’s Certification process. With the lens of Functional medicine, she developed integrative and evidence-based treatment plans that provided her patients the tools to optimize their well-being.  Dr. Gonzalez was among the first group of physicians in the nation to become board certified in the specialty of Integrative Medicine.  

Dr. Gonzalez has always placed a high premium on her relationships with her patients and the individuals who assist her in the delivery of care.  She believes that her patient’s story holds the key to their healing and by actively listening she can create a path to health and improved vitality.

“I really do believe that the anti-inflammatory program at Lifespan Medicine changed our lives for the better and I can’t thank you enough as I know that the changes I made helped me with this pregnancy. The lifestyle changes have also given our little girl the best start she could hope for in life!”

Dr. Lanae Mullane

Dr. Mullane is the Director of Nutrition at LifeSpan medicine.  She completed her undergraduate degree from Northern Arizona University and a naturopathic medical degree from Bastyr University in Washington.  

Dr. Mullane is an avid crusader in integrating both Western and natural medicine together to create a “whole” approach to health and function for clients. She understands that in order to be healthy and feel good we must address our own individual biochemistry tailoring our treatments, lifestyle and our diet to match each person's unique makeup. She came to LifeSpan after working for years in Nutrition and Integrative medicine.

Dr Mullane conducts individual consultations and assessments to identify deficiencies and imbalances and customizes plans involving lifestyle modifications, diet, supplementation and exercise. Her clients include families, executives, athletes and young professionals looking to perform and be their best.  She helps each client reach any nutrition or health goal they may have from weight loss, to more energy, less inflammation or just feeling and looking better overall.  She utilizes her expertise in the kitchen to provide specialized menus and recipes to fit each clients’ individual preferences, food sensitivities, biochemistry, and overall lifestyle. 

Nicole Visnic, CCN

Nicole Visnic, CCN, is the Ambassador of Nutrition at LifeSpan medicine. Nicole is a featured speaker, media consultant and has a wealth of knowledge on nutrition, weight loss, and various other health topics for our clients. Nicole builds all the LifeSpan medicine programs for our corporate health partnerships. She is an expert in customized nutrition plans involving lifestyle modifications, diet, supplementation and exercise. She excels at helping others reach a health goal they may have from weight loss, to more energy, less inflammation or just feeling and looking better overall.

Nicole enjoys cooking, and utilizes her expertise in the kitchen to provide specialized menus and recipes for clients to fit their individual preferences, allergies and food sensitivities, and overall lifestyles. She is currently working with meal delivery programs and restaurants world wide to provide LifeSpan medicine approved meals and menus. 

She earned her Bachelor of Science in Health Education from Winona State University and her Masters in Human Nutrition from the University of Bridgeport. In addition to her Master’s degree, Nicole is a board certified clinical nutritionist.  She has directed corporate wellness programs and has also served as an adjunct professor of psychology at Brown Mackie College. She also practices what she preaches, adhering to a nutritious diet, and continually challenging herself by participating in rigorous events such as the LA Marathon, Orange County Duathlon and NPC Figure Competition.