Mark Holthouse, M.D., FAAFP

Mark Holthouse, M.D., FAAFP

(Dr. Mark Holthouse MD, FAAFP, ABoIM, ABFM, ABIHM, IFMCP) 

After practicing Family Medicine from 1993 to 2004, I came to a point in my career where I wanted to look at medicine from a ROOT CAUSE perspective instead of simply naming and blaming lists of symptoms patients came in with. I got sick of feeling like handing out prescription drugs and recommending surgery was all that I could do for people! In 2005 I started taking nutrition and integrative medicine courses as fast as time would allow and felt that I had found "my tribe".  Shortly thereafter I started the Center for Functional & Integrative Medicine and later opened the True Health Center for Functional Medicine in El Dorado Hills, CA.  During these transforming years, I have obtained board certification by the American Board of Integrative & Holistic Medicine, the American Board of Integrative Medicine and  become a Certified Functional Medicine Practitioner. I have also maintained my board in Family Medicine to keep both skill sets up to date. I am really enjoying the broader perspective when my patients come in with symptoms, seeing results I could never get using solely what I learned in medical school. 

My favorite thing about being a physician is the opportunity to teach.  I get to teach while practicing functional medicine in the clinic and in academics as a professor at Loma Linda University School of Medicine teaching Preventive Cardiology to the senior medical students...great fun!  I have also been honored by the Institute for Functional Medicine as part of their teaching faculty sharing what I have learned with other practitioners in the Advanced Hormone Practice Module since 2014.



Hours of Operation

Monday-Friday 8:30am - 5pm


  • Family Medicine Residency -University of California, Davis/David Grant Medical Center, Travis Air Force Base, CA
  • Loma Linda University School of Medicine- MD degree 
  • Pacific Union College - BS in Biology

Faculty Teaching Appointments:

  • Teaching Faculty at Institute for Functional Medicine 2014 to present
  • Assistant Professor of Medicine at Loma Linda University School of Medicine 2010 to present
  • U.C.  Davis School of Medicine Clinical Teaching Faculty  1993-1995
  • Chief of Ambulatory Care Mather and McClellan USAF Hospital/Clinics 1993-1996

Current Board Certifications

  • American Board of Family Medicine (ABFM)
  • American Board of Integrative Medicine (ABoIM) *Specialist
  • American Board of Integrative and Holistic Medicine (ABIHM)
  • Certified Functional Medicine Practitioner ( IFMCP)
  • Fellow American Academy of Family Practice (FAAFP)

Awards & Honors:

  • Best Family Physician in El Dorado County, El Dorado Hills  'Style Magazine Readers Choice Awards', 2013, 2014, and 2015
  • Top Family Practitioner, Mountain Democrat Readers' Choice Awards 2007-2014
  • Major United States Air Force Medical Corp - USAF Commendation Medal Meritorious Service Award