Dr. Mark Geier has opened eight autism treatment clinics called ASD Centers across the country but is only allowed to practice at two of them in St. Peters and Springfield, Ill.
Missouri and Illinois are among the last states to seek discipline against Geier, whose hormone therapy for children with autism has been called dangerous, abusive and exploitive by various medical boards.
In the last two years, his medical license has been revoked or suspended in California, Florida, Indiana, Kentucky, Maryland, New Jersey, Texas, Virginia and Washington.
Missouri, Illinois and Hawaii have filed complaints against Geier based on other states' actions, but his license remains active in all three states. A disciplinary hearing in Geier's case is set for Oct. 19 before the Missouri Board of Registration for the Healing Arts in Jefferson City.
Geier did not respond to requests for comment.
After Geier and his son, David, ran into trouble in their home state of Maryland, they apparently came to Missouri.
Last year, David Geier, who has a bachelor's degree in biology, was charged with practicing medicine without a license. In their case against him, Maryland authorities said he had diagnosed patients, used ultrasound machines and ordered blood tests.
David Geier now works at the St. Peters clinic in a shopping center on Mexico Road.
"I don't see patients," Geier said when reached at the clinic Wednesday.
A man who answered the phone at the ASD Center in Springfield, Ill., said Dr. Mark Geier does not see patients there but consults with the clinic's director, Dr. Georgia Davis.
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Controversial autism doctor loses license elsewhere, but can still practice in Missouri, Illinois