The Official Doctors of the Jungle

Welcome to the Doctors of the Jungle Page, here you will find a list of Board Certified Doctors who currently support our business by utilizing our services themselves as well as referring their very own patients to us. Jungle Fitness of Orange County is proud to be a nationally certified personal training company and also partners with board certified surgeons, physicians, and other medical doctors. Combined with our experience in sports medicine and kinesiology as well as our doctors’ knowledge and education in traditional medicine, we guarantee you that you will be in the best hands possible in any of our Jungle Fitness transformation programs!

Lincoln S. Yee, M.D., F.A.A.O.S.

Dolphin Orthopedic Associates, Inc.
Orthopedic Surgeon

Certified by American Board of Orthopedic Surgery
M.D., University of California, Los Angeles

Located in Newport Beach, CA & Los Angeles, CA

“Being an orthopedic surgeon I am constantly on my feet utilizing every muscle of my body. In perfecting my surgeries and making sure that surgeries go according to plan, I am always planning ahead every step until the last step of the surgery. I love Jungle Fitness because from Day 1, they always had a plan for me based on my personal fitness and health goals.

Just like being a orthopedic surgeon, my Jungle Fitness Personal Trainer sat down with me on my first day of training and made sure that he knew exactly how I wanted my body to be sculpted like as well as what my ultimate health goals were. He had a plan each day and always like myself in surgery was steps ahead so that my next training session was nothing like the first but just a stepping stone closer to achieving my goals! It is because of the knowledge, education, experience, and hands on training that Jungle Fitness executes that I recommend and refer my very own patients to them as clients of the Jungle!

It is because of this rigorous personal training that I am able to wake up every morning and start my day by running  5-10 miles without hesitation! Thank you for making me one fit orthopedic surgeon! Orange County Locals I highly recommend training in the Jungle, the experience is well worth it and the results speak for themselves.” - Lincoln Yee

Grace Pak, D.C., L.Ac.

Pak Integrative Medicine Center
Doctor of Chiropractic Medicine

License Acupuncturist & Chiropractor

Located in Newport Beach, CA & Westminster, CA

“Before hiring a personal trainer one should seriously ask themselves, ‘Do I trust my well-being with this individual?’ Anyone can be a personal trainer but not everyone can be a personal developer.  There is a huge difference between the personal trainers at Jungle Fitness and every other personal trainer.

First, look at the personal trainer him/herself and ask yourself are you in better physical shape then he or she, if you are you should automatically walk out the door. Jon Jung and the Jungle Fitness Team are all in phenomenal shape and resemble what a personal trainer should look like!  Second, you want to make sure that the personal trainer is educated and actually can use the knowledge he or she has and utilize it when training you. I know for a fact that Jon Jung of Jungle Fitness is straight A graduate from the University of California, Irvine! This is the kind of personal trainer you want: one who has great credentials and knowledge and looks the part!

Jungle Fitness has changed my life and has allowed me to feel great every morning I wake up and every night I go to bed. It has allowed me a more active, healthy life and it is because of all of these reasons I’ve listed that I personally refer and recommend all of my personal patients, friends, and family members to Jungle Fitness. Thank you Jungle Fitness for making me a healthy, active doctor and more importantly mother of two!” - Grace Pak

Thuy Hua, O.D.

TLC Laser Eye Centers
Doctor of Optometry
Head Clinical Director

Located in multiple offices in Orange County, CA.

“As an eye care professional specializing in elective laser eye surgeries I know the importance of quality and optimal results that cannot be comprised. I believe this also holds true when seeking a personal trainer whom I can trust my health and physical being to. This is why I chose the experienced and educated personal trainers at Jungle Fitness when working out on my own as well as with various trainers at local gyms did not give me results.

I came to Jungle Fitness with excessive body fat and weight that I could not shave off on my own. Jon Jung put together a vigorously customized workout for me that was different every time. Together with a personalized nutrition plan and hands on training, I lost over 20 lbs and 18% body fat in 2 months!  Jon Jung and the Jungle Fitness Team are truly amazing how they transform a person’s physique, health, and lifestyle forever. I now have more energy all day to withstand long hours of examining patients and lead a more active lifestyle now than I ever have before. I also have more confidence as medical professional to educate my patients about living a healthy lifestyle physically and mentally since I am more fit myself. What makes the personal trainers at Jungle Fitness unique is that they are all in phenomenal shape and they actually apply the knowledge and skills they have in training you everyday.

As a health care professional I value word of mouth referrals greatly since it reflects my business and myself, this is why I confidently recommend the Jungle Fitness Team to be the health and fitness coach for my family, friends and patients.” - Thuy Hua

John Saddik, D.C., A.R.T.

Doctor of Chiropractic Medicine
Active Release Technique Provider
Fenzian Practitioner

Diplomate American Chiropractic Rehabilitation Board
(Canidate 2010)
D.C., Palmer College of Chiropractic West

Located in Irvine, CA

“Training with Jungle Fitness for the past year has helped me achieve the results I have not been able to accomplish on my own. Their unique, hardcore and client specific training programs is definitely the key to my success! The trainers of JFIT are brimming with the brains to help anyone achieve their goals. They are outstanding masters of their  craft; incredibly bright with a treasure trove of health and fitness knowledge; expert in, weight training, body sculpting; and a warm, spontaneous personality that make workouts fun.  They are the real deal in an industry full of amateurs and are the standard by which any trainer should be measured. That is why in my practice I trust and send my patients to Jungle Fitness where I know they will receive the appropriate training and rehab my patients need for a faster recovery.” - John Saddik

David J. Chun, P.T., D.P.T., O.C.S., C.S.C.S.

Kai Physical Therapy & Rehabilitation, Inc.
Doctor of Physical Therapy

Board Certified Orthopedic Clinical Specialist
Certified Strength & Conditioning Specialist
B.A., University of California, Berkeley
D.P.T., University of Southern California

Located in Irvine, CA

“I have been training with Jungle Fitness for almost 2 years now. The results that I have achieved to date are largely due to their combination of diverse training methods and an extremely specific/individualized exercise regimen.  Working with them is challenging yet the goals are achievable. Their professionalism, extensive knowledge and enthusiastic commitment to their work and ultimately their clients, provides the best scenario to gain results and achieve success and also continue building upon the foundation for a better, healthier lifestyle.

Kai Physical Therapy & Rehabilitation works with both Jungle Fitness clients as well as their own personnel whenever an injury has been sustained. Some patients who longer need our physical therapy services but do require additional strengthening and cardiovascular conditioning are referred to Jungle Fitness.  This creates a seamless transition from the end of the rehabilitation process over to the fitness realm so there is little to no interruption of care.” - David Chun

Vasili J. Gatsinaris, D.C., Q.M.E.

Next Level Wellness Center
Doctor of Chiropractic Medicine

Qualified Medical Examiner
ART Certified Provider
Fenzian Practioner
B.S. University California Irvine

Located in Irvine, CA

“I have personally known Jon Jung of Jungle fitness for quite sometime now and have had the pleasure of working with him The Jungle Fitness trainers are very knowledgeable and all of my patients have had a positive experience with their workouts and training. The trainers take their time to evaluate their clients and always set up an appropriate training regiment that best suits them. They are always up to date on the latest fitness training and incorporate these trainings with their clientele. After my patients have recovered from their injuries, I’ve recommended Jungle Fitness to help them get back into training shape. It’s a great feeling knowing that my patients will be receiving top quality fitness. - Dr.Vasili J. Gatsinaris
A little bit about Dr. Vasili John Gatsinaris:
Dr. Vasili Gatsinaris, or “Dr. Vas” as his patients warmly call him, is a highly sought after sports therapist and chiropractor; renowned for treating numerous professional athletes from all major sports leagues including the Major League Baseball, National Basketball Association, National Football League , National Hockey League and Major League Soccer, including several players from the Los Angeles Lakers, Portland Trail Blazers, Utah Jazz and Philadelphia 76’ers as well as celebrities, collegiate athletes and weekend warriors.

John DeWitt, D.C., Q.M.E.

Next Level Wellness Center
Doctor of Chiropractic Medicine

Qualified Medical Examiner
ART Certified Provider
Fenzian Practioner
Advanced Sports Nutrition Specialist
12+ Years of Professional Football Experience

Located in Irvine, CA

“I have been training with Jungle Fitness for almost six months now and have had great results! The trainers are very knowledgeable and fun to work out with. My original goal was to lose some body fat while maintaining my weight. I lost over ten pounds in the first week! I highly recommend Jungle Fitness for all your fitness needs.” - Dr.John DeWitt
A little bit about Dr. John DeWitt:
Dr. John DeWitt, or Dr. John, as most of his patients call him, played professional football in several leagues including the NFL, CFL, AFL and XFL. He has first-hand knowledge of sports injuries and has treated professional, collegiate and high school athletes as well as their parents and siblings. Dr. DeWitt graduated from Vanderbilt University with a Bachelor of Arts degree in anthropology.
In 2004, Dr. DeWitt attended Los Angeles College of Chiropractic in Whittier, Calif., and graduated with a Doctorate of Chiropractic. He has been a credentialed A.R.T. ® provider for the past four years, a certified Golf Injury Specialist and an Advanced Sports Nutrition Specialist. Born and raised in Arkansas, Dr. DeWitt brings his strong Southern ethics and passion for learning to the practice every day. He is continually searching for the most cutting edge treatment and nutrition protocols for his patients. Dr. DeWitt resides with his wife and three dogs in Irvine, CA.

James Kim, D.C., C.S.C.S.

Next Level Wellness Center
Doctor of Chiropractic Medicine

Certified Strength and Conditioning Specialist
Member, Intl. Society of Clinical Rehabilitation Specialists
ART Certified Provider
B.A. University of California, Irvine

Located in Irvine, CA

“I have met several trainers from Jungle Fitness and I do not hesitate to refer patients to them. Each of the trainers are skilled at their respective specialties and I know my patients will get the most out of their workouts. I trust that Jungle Fitness trainers will identify my patient’s “weak links” and train them accordingly, in addition to meeting their personal goals of fitness. It has been a pleasure working with Jungle Fitness trainers and I look forward to continue doing so in the future.” - Dr.James Kim

Jungle Fitness Orange County Personal Training is Orange County’s Best Personal Fitness Trainers for Fat Loss & Lean Muscle Building. Our Jungle Fitness Orange County Personal Trainers have helped our clients achieve significant fat loss and lean muscle building and are considered the top Fitness Experts in Orange County. Our training philosophy is one that is results-oriented, goal-oriented, and success driven.

Jungle Fitness Orange County Personal Trainers: Aliso Viejo | Anaheim | Brea | Costa Mesa | Corona Del Mar | Dana Point | Foothill Ranch | Fountain Valley | Huntington Beach | Irvine | Ladera Ranch | Laguna Niguel | Laguna Beach | Long Beach | Mission Viejo | Newport Beach | Orange County | Placentia | Santa Ana | San Clemente | San Juan Capistrano | Seal Beach | South Coast Metro | Tustin | Westminster | Yorba Linda

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