Our Team


Dr. Michael DeYoung, M.D.

Michael DeYoung, MD, of LaSara Medical Group with locations in Sawtelle of Los Angeles, Tustin of Orange County, and Encinitas of San Diego, California, was born in Peoria, Illinois, where he attended the nearby University of Illinois for his undergraduate studies. After graduating, he spent two years serving in the Peace Corps, working on a project that brought portable water to the people of Thailand. After returning to the United States, he completed medical school at Georgetown University in Washington, D.C., graduating in 1974.

Dr. DeYoung then moved to California to complete his residency in internal medicine at Cedars-Sinai Medical Center in Los Angeles. After completing the three-year residency, he completed a second residency at Los Angeles County+USC Medical Center, this time studying emergency medicine.

A fellow of the American College of Emergency Physicians, Dr. DeYoung has worked extensively in emergency medicine for over four decades. Now, as the medical director of LaSara Medical Group, with Southern California offices in the Sawtelle neighborhood of Los Angeles as well as Tustin, California, he brings his wealth of experience to his treatment of men’s sexual health, with a detailed approach perfected by his years of work in emergency medicine.




Dr. Irving Malis, M.D. F.A.C.S., Board Certified Urologist

Dr. Irving Malis, M.D. was born and raised in Los Angeles, California. He attended the University of Southern California as an undergraduate and the University of California, Irvine where he completed his degree in medicine in 1963. After graduation, he interned at the Los Angeles County Hospital, completed his surgical residency at the Veterans Administration Hospital in Montinez, California, and completed his urology residency at the Kaiser Foundation Hospital in Los Angeles, California.

As a Board Certified Urologist, Dr. Malis opened up his own private practice in 1968 and later semi-retired in 1995. Since his semi-retirement, he’s worked as a physician for the Free Clinic and became an adjunct professor of medicine at the Keck School of Medicine at the University of Southern California, Los Angeles.

Today, Dr. Malis is helping lead the charge with LaSara Medical Group’s patients and given his extensive experience in his own Urology practice, he offers a wealth of information and perspective for our patients.



Dr. Howard Taekman, M.D.

Dr. Howard Taekman, M.D., F.A.C.S., was born and raised in Chicago, Illinois. He attended medical school in his home town of Chicago before interning at George Washington University Hospital. Upon completing his internship, he started his general surgery training at Boston City Hospital. He later spent two years in the US Navy as the Chief of Surgery for the test pilot school of Patuxent River Naval Station. In 1973, he left the Navy and started his own private practice of general surgery which he eventually retired from after 35 years of patient care. Over the last 22 years he has been the Medical Director of the Level II Trauma Center for Contra Costa and Solano Counties. In the last four years, Dr. Taekman has been sharing his knowledge as a clinical instructor at University of Southern California’s Kech School of Medicine.

Today, Dr. Taekman is the Medical Director of LaSara Medical Group in Los Angeles, California. He finds our low intensity focused shockwave treatment to be an exciting modality for men’s sexual health and an amazing option for men looking to achieve a normal and spontaneous sex life.


John M. Snedegar, Co-Founder & Clinical Director

John partnered with Dr. DeYoung in 2017 to start LaSara Medical Group. He is overly passionate about the work that LaSara is doing for the men of Southern California. He takes great pride in seeing the positive impact of how a man’s restored sexual ability can create positive change in all aspects of their lives. He is committed to ensuring a professional and world class experience for each patient from the moment they walk through LaSara’s doors. As the Clinical Director, he guarantees that each patient will be met with integrity and honesty about all that is offered by LaSara.

John is a California native who is an avid outdoor and water man. He enjoys surfing, hiking with his dog, and spending time with his friends and family around good food and wine.



Yeon Lee, Registered Nurse

Yeon has been a key member of our team since the inception of LaSara Medical Group. He has over a decade of experience as a Registered Nurse ranging from his activate duty in the United States Air Force, to surgical rooms, to being the primary treatment provider for LaSara Medical Group’s patients in Tustin. With the support of all the clinical and research data around the world, he has played a vital role in helping our doctor’s refine LaSara’s shockwave treatment protocol for Erectile Dysfunction. He takes great pride in supporting our patients on their path to restored confidence and sexual ability.

Outside of work, Yeon loves spending time with his family, watching movies, staying fit, and exploring the great restaurants of Orange County.


Edwin Lopez, Medical Assistant & Phlebotomist

Edwin has spent more than 25 years in the medical field with experience in multi surgical specialties, oncology, dermatology, rheumatology, orthopedics, urology, men’s sexual health, and shockwave therapy for plantar fasciitis. He is a compassionate and enthusiastic medical professional who manages LaSara’s patient treatments in Los Angeles.

Edwin is a proud father of a son who is following in his fathers footsteps to pursue a career in medicine. Edwin enjoys the outdoors and hiking.


Our Locations

Choose your preferred location