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Marc S. Williams, MD

Languages spoken: English

Academic Information

Departments Adjunct - Biomedical Informatics

Academic Office Information

Board Certification

  • American Board of Pediatrics (Pediatrics)
  • National Board of Medical Examiners

Marc S. Williams, MD, FAAP, FACMG is an alumnus of the University of Wisconsin-Madison having graduated with a BS in Chemistry in 1977, and an MD in 1981. He did a pediatric residency at the University of Utah from 1981-1984. After two years of solo practice in Hillsdale, Michigan, he joined the Riverside (California) Medical Clinic as a general pediatrician and practiced there until 1991. From 1991 until joining Intermountain Healthcare, Dr. Williams was at the Gundersen Lutheran Medical Center in La Crosse, WI. Hired as a general pediatrician, he eventually pursued fellowship training in Clinical Genetics, and was board certified in this specialty in 1996 and recertified in 2006. In 1999, he gave up general pediatric practice and became the associate medical director of the Gundersen Lutheran Health Plan while maintaining his genetic practice. It was by combining these two areas of expertise that he developed an interest in the role of genetics in health care delivery. He has published and presented extensively on this topic. Since January of 2005, he has been the director of the Intermountain Healthcare Clinical Genetics Institute in Salt Lake City, Utah. In addition to his administrative duties, Dr. Williams runs a clinic for evaluation of adults with mental retardation, birth defects and genetic disorders. He is a clinical professor of Pediatrics in the Division of Medical Genetics and adjunct professor of Biomedical Informatics at the University of Utah. He is a director of the board of the American College of Medical Genetics and in 2009 was elected Vice-President of Clinical Genetics of the College. He has participated in the Personalized Medicine Workgroup of the Department of Health and Human Services’ American Health Information Community Task Force, chaired the CDC’s EGAPP Stakeholder’s Group, was a member of the CDC’s CETT program review board and the Secretary’s Advisory Committee for Genetics, Health and Society, having previously served on the Coverage and Reimbursement Task Force of that group. He is past chair of the Committee on the Economics of Genetic Services of the American College of Medical Genetics, as well as chair of the subcommittee on Health Care Systems of the Section on Genetics and Birth Defects of the American Academy of Pediatrics. He is currently chairing the ACMG Ad Hoc Committee on the Value of a Genetic Diagnosis and was recently named to the external scientific panel of the NHGRI’s eMERGE project. He founded the American College of Medical Genetics Quality Improvement Special Interest Group. He is the Editor-in-Chief of the Manual on Reimbursement for Medical Genetic Services. He has authored over fifty articles in the peer-review medical literature and is a frequent presenter at national and international meetings.

Education History

Fellowship University of Wisconsin - Madison
University of Utah Department of Pediatrics
Internship University of Utah Department of Pediatrics
University of Wisconsin - Madison
Undergraduate University of Wisconsin-Madison