AboutOptimal Medical Group

At Optimal Medical Group, our team strives to help patients live their lives to the fullest through restorative medical techniques and other services. Dr. Juan Chavez, MD, and Dr. Mireles-Chavez, MD, FAAP, along with our team, can help build a customized treatment plan to promote wellness and health so patients can thrive in life. There is no reason to let aging, and the various conditions that come with age, hold someone back.

We can address multiple aspects of a patient’s health including their weight, nutrition, condition of their skin, sexual wellness, condition of their hair, hormone levels and more. During the patient’s treatment process, we can alter the plan as necessary. We will also instruct the patient on various lifestyle changes to further their treatment while at home.

If you are interested in learning more about our restorative health and anti-aging treatment options, call us at 559-425-1118 and schedule an appointment.

Dr. Juan Chavez

Physician

Juan Chavez, MD

Dr. Juan Chavez is board certified by the American Board of Internal Medicine, the American Board of Obesity Medicine, and has practiced internal and critical care medicine in Fresno, California for more than 15 years. He became interested in age management medicine in hoping to take a proactive approach in treating the major diseases that afflict our society such as diabetes, cardiovascular disease, stroke, and dementia.

He is a graduate of the UCSF-Fresno Internal Medicine residency program and scored in the top tenth percentile in the country on the American Board of Internal Medicine exam. He graduated medical school at the University of California Davis and received his Bachelors of Arts degree in Psychobiology from the University of California at Los Angeles.

Dr. Chavez has been age management trained and certified since 2012 by the Age Management Medical Group, the largest age management group in the country. Some of his other advanced training includes:

  • Obesity Medicine
  • Medical Weight Loss (working with pre and post surgery patients)
  • Fitness Training
  • Nutrition Training
  • Lifestyle Modification
  • Cardiovascular Disease
  • Medical Hair Loss Management
  • Dr. Chavez is fluent in Spanish, enjoys spending time with his family, golfing and staying fit.

    Dr. Lucia Mireles-Chavez

    Physician

    Lucia Mireles-Chavez, MD, FAAP

    Dr. Mireles-Chavez is board certified by the American Board of Obesity Medicine. She is also Board Certified in Pediatrics and a Fellow of the American Academy of Pediatrics. She has practiced pediatrics in the Fresno, California area for more than 15 years. She is a graduate of UCSF-Fresno Pediatric residency program. She graduated from Stanford University School of Medicine after receiving her Bachelor of Arts degree in Integrative Biology from the University of California at Berkeley. Her interest in a more holistic approach to medicine of all ages grew from attending age management conferences with her husband, Dr. Juan Chavez.

    She was trained in integrative and restorative medicine from SaJune Institute for Restorative and Regenerative Medicine and specializes in women and adolescents. Additional training includes:

  • The only certified medical practitioner providing Bio-TE® pellet therapy in the Central Valley
  • Fitness Training
  • Nutrition Training
  • Lifestyle Modification
  • Obesity Medicine
  • Medical Weight Loss (working with pre and post surgery patients)
  • Cardiovascular Disease
  • Medical Hair Loss Management
  • Dr. Mireles-Chavez is fluent in Spanish and enjoys dance, yoga, scuba diving, cooking and traveling.

    Samantha Kellogg

    Consultant and Health Coach

    Samantha (Sam) Kellogg is a Consultant and Health Coach who brings a lot of energy and expertise to the team. She has a strong background in health and fitness, has operated health clubs and worked as a hospital administrator. Additionally, she has experience working with patients who received hair transplants, non-surgical replacement, hair therapy, and laser treatments.

    After 12 years in business and corporate world, Sam returned to school to pursue a Bachelor’s Degree in Nursing. She has completed her pre-request classes and is currently waiting for acceptance into the program.

    In her spare time, Sam enjoys spending time with her kids, attending basketball games, and reading. She grew up in Reedley and has lived in Fresno for last nine years.

    Jennifer Zerling, MS, CES, CPT

    Fitness Trainer & Nutrition Specialist

    Jennifer Zerling, also known as “JZ”, holds a Master’s degree in Kinesiology and maintains a variety of national personal training, nutrition and group training certifications. Her drive in preventative fitness programming recently earned her a credential as a corrective exercise specialist through the Biomechanics Method. With over 8 years of nutritional coaching experience through her vast clinical background, JZ created the JZ FITNESS NUTRITION app on Apple and Androids; a nutrition coach at your fingertips. JZ authored the book, Breaking the Chains of Obesity, 107 Tools. She designs and operates various corporate wellness programs and is a national speaker. She writes all the fitness programming for Matthew Mcconaughey’s organization, Just Keep Livin’, and is the Director of Guest Wellness for Stay Fit Housing, a five star corporate housing company. JZ executes genetic test interpretations as the nutrition and fitness expert for Caligenix. JZ is also one of the proud coaches at Orangetheory Fitness in Brentwood, California. Her expertise can be found through various online and print resources such as the Huffington Post, Shape Magazine, LA Times, Yahoo News, New York Smash, Active.com and Oprah.com, to name a few. Her innovative program designs can be seen on Fox News, E! News, NBC and ABC. www.JZFitness.com

    Get The JZ Fitness Nutrition App

    Ilisa Drew

    Ilisa Drew graduated from Fresno State University with a Bachelor of Arts in Women’s Studies. She lives life with an open mind and curiosity for knowledge and personal growth.

    Ilisa has been volunteering for the past 11 years at Valley Children’s Hospital. Her other interests include expanding her creativity through art, calligraphy, and discovering new places. She enjoys strength training and supports the philosophy of Optimal Medical Group and preventative medicine. Ilisa believes that “The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.” ~ Ralph Waldo Emerson

    Jose Chavez

    Jose Chavez is an undergraduate filmmaker and programmer at the University of California, Berkeley. After learning about design and web development, Jose joined the staff at Optimal Medical Group to assist the technical needs of the company. At Berkeley, Jose spends most of his time devoting himself to classwork and the University of California Marching Band, as a bass drum. In Fresno, Jose devotes himself to improving the user-friendly workflow at Optimal Medical Group. For technical questions, Jose can be contacted at [email protected] or at (559) 903-7278.