Dr. Barthwell worked in the White House under President George W. Bush as Deputy Director for Demand Reduction at the Office of National Drug Control Policy.
After entering the medical profession, Dr. Barthwell became President of the Illinois Society of Addiction Medicine and then President of the American Society of Addiction Medicine, an area of medicine that has been one of her specialties. She has served as President of the Encounter Medical Group, an Oak Park, Illinois professional consortium that also focused on addiction health care. In nearby Chicago, Dr. Barthwell has headed two drug treatment organizations: BRASS Foundation, a provider of addiction treatment services, and Interventions. In 1997, Dr. Barthwell’s peers named her one of the “Best Doctors in America” in addiction medicine.
In 2003, Dr. Barthwell received the Betty Ford Award, given by the Association for Medical Education and Research in Substance Abuse.
Barthwell founded and is CEO of the global health care and consulting firm EMGlobal LLC.