Dr.  Jonathan Cole, a board-certified internist, comes to California Health & Longevity Institute, Inc. with extensive experience in the areas of preventive and internal medicine. As Medical Director, he practices precision medicine which provides a 360 degree tailored approach to patient health and wellness with an emphasis on prevention so that patients live better, longer. Before joining California Health & Longevity Institute, Inc., Cole was a clinical instructor at the prestigious University of Southern California, Keck School of Medicine, with responsibility for teaching medical students the art of history-taking and physical diagnosis. During his career, he also served as the Vice President of Medical Staff for Saint John’s Health Center, elected by his peers to the Executive Board, and asked by the Saint John’s Health Center Trustees to be on the Board Affairs Committee of the Foundation.  Dr. Cole has lectured to insurance companies, health and wellness symposiums, and Young Presidents’ Organization groups on many topics including corporate health and wellness and cardiovascular disease prevention.

A graduate of the University of California, San Diego, Dr. Cole holds degrees in Biology and English Literature with a focus on the works of James Joyce. He attended the Chicago Medical School, where he graduated with highest honors in the Alpha Omega Alpha Honor Society. His medical training in internal medicine was completed at the Baylor College of Medicine in Houston, Texas as well as the Texas Medical Center, where he received the award for “Most Outstanding Resident in Primary Care.”  He currently resides in Encino, California with his wife and two daughters and enjoys playing golf and tennis, hiking, and yoga.

Dr. Leon Henderson-MacLennan joined California Health & Longevity Institute, Inc. in 2013, having spent 20 years developing expertise in internal medicine, medical genetics, and applied health services research. Dr. Henderson-MacLennan was a faculty member at Cedars-Sinai
Medical Center in the Department of General Internal Medicine prior to arriving at CHLI. He has published abstracts and manuscripts for numerous peer-reviewed publications including those dedicated to critical appraisal of the medical literature in order to advance both preventive and therapeutic approaches to patient care. He has authored a chapter on genetic counseling for gastrointestinal patients; and has received several teaching awards for his work with medical students, residents, and fellows in both internal medicine and genetics.

Board certified by the American Board of Internal Medicine, Dr. Henderson-MacLennan is a member of the American College of Physicians, the American Society of Human Genetics and several other professional societies. Dr. Henderson-MacLennan earned a Doctor of Medicine from Cornell University and a Bachelor of Arts in Linguistics from Northwestern University. He completed an internship and a residency in internal medicine at Cedars-Sinai. He also completed a fellowship in medical genetics at the University of California, Los Angeles (UCLA) after which he was appointed Assistant Clinical Professor of Medicine at the same institution.

Dr. Steven Tan is one of the country’s most comprehensively trained integrative physicians, and he has the rare distinction of holding medical degrees and board certification in both western
and eastern medicine. A graduate of the UCLA School of Medicine and the UCLA Internal Medicine Residency Program, he is board certified in internal medicine. Dr. Tan completed his Oriental medical degree and internship at Emperor’s College in Los Angeles. While studying in
China, he completed an externship in acupuncture and herbal medicine at the Hong Kong Baptist University Hospital.

Governor Arnold Schwarzenegger appointed Dr. Tan to the California Acupuncture Board, where he was eventually elected Chairman. He previously served as an associate faculty member for the UCLA Center for Integrative Medicine and is on the external board of advisors to the UCLA Center for Human Nutrition and Dietary Supplements Research.

Dr. Steve Chopyak brings 30 years of chiropractic clinical experience to California Health & Longevity Institute, Inc. Inspired by the restoration of his own health with chiropractic techniques, he uses gentle and natural methods that worked for his own back pain. Focusing on
whole person balance and health, Dr. Chopyak is experienced in many advanced techniques including low force Vector Point cranial treatment. When asked about his philosophy of chiropractic treatment, Dr. Chopyak says, “Because I had experience with a severe chronic condition myself, I am familiar with the experience of pain, physical limitations caused by pain, and its effect on lifestyle. When I treat patients, I work with the whole person so that the body’s different parts are all playing in natural rhythm and harmony with each other.”

He completed his chiropractic education at Northwestern Health Sciences University in Minneapolis, MN. While he is currently practicing in California, he has in the past practiced in Montana, Minnesota and Missouri, and is a former member of the teaching staff of the Cranio-Facial Pain Clinic at White Memorial Hospital in Los Angeles. Dr. Chopyak is also two-term past president of the Santa Monica Chapter of the California Chiropractic Association.

Dr. Roger Thai has been a living in the community and practicing dentistry at California Health & Longevity Institute, Inc. since 2007.  Dr. Thai is best known for his “Zen-like” approach to life and philosophy of practicing dentistry. He is practical and humanistic to the wellbeing of oral health.  Dr. Thai received a Health Professional Scholarship Program through the U.S. Air Force while attending University of The Pacific in 2001. He then completed an Advanced Education in General Dentistry in 2002, with emphasis in crown, bridge and periodontic surgery. He was recently voted as one the Top Rated Dentist in Los Angeles. He practices with great conviction and compassion.

Outside of his professional career, Dr. Thai enjoys coaching basketball, football, and Track & Field. He has four beautiful children that occupy his time at home.

Dr. Rick Glassman has been practicing Advanced Restorative Dentistry for over three decades. His consistently solid work is why he is widely considered to be one of the top Advanced Restorative dentists in the United States. His eye for esthetic issues never compromises his overall dental health management. Dr. Glassman boasts a graduate degree from USC Dental School in1980, and then went on to become the Clinical Associate to Dr. Robert Gerber, Chief of Staff of the Cedars-Sinai Dental Division and donated his time for a division at the hospital that provided primary care to tens of thousands of indigent patients. Dr. Glassman founded and supervised the Beverly Hills Dental Laser Group, exploring the early frontiers of Laser Dental Bleaching/Whitening after studying with the creator of the Bright Smile Laser Whitening System.

With 15 on-screen film credits, Dr. Glassman is considered one of the industry’s go-to experts in dental special effects and has proven himself to be not only a dentist who cares about each of his patients’ individual needs, but an artist with a vision to suit the specific needs for any facet of the film, television and music industry.

In addition to his professional duties, Dr. Glassman is proud to support charitable organizations
including the Tuberous Sclerosis Alliance (who named a special fund in his name), Race to Erase

MS, The Wild Horse Sanctuary and The Eastwood Ranch Foundation. Dr. Glassman resides in Southern California with his family and is a classically trained guitar player, portrait artist, renaissance man and avid horseback rider.

Jeff So is a California Licensed Physician Assistant with interests in medical and cosmetic dermatology. Jeff enjoys conducting clinical trials and has collaborated on numerous publications and research projects. He received his undergraduate degree at UCLA and earned his post-graduate degree at Western University of Health Sciences in Pomona, CA.

When he’s not practicing at California Health & Longevity Institute, Inc., Jeff can be found practicing at Moy Fincher Chipps Facial Plastics & Dermatology in Beverly Hills, where he trained with the leaders of the field. Jeff is passionate about developing lasting relationships, patient education, and providing the highest level of dermatological care possible.