Oklahoma Business People

Diagnostic Laboratory of Oklahoma names Dr. Jennifer A. Mulhollan its medical director. Mulhollan is a board-certified pathologist who received her medical degree at the University of Texas Health Science Center, San Antonio. She has been in private practice for more than two decades, serving hospitals, multispecialty clinics and independent reference laboratories in Texas, Arkansas and Oklahoma.

Dr. Theodore Wagener, a clinical psychologist specializing in behavioral sleep medicine, has established his practice with OU Children's Physicians. He also has been named the director of the Pediatric Behavioral Sleep Medicine Clinic, the only pediatric behavioral sleep medicine clinic in the state, and is an assistant professor for the University of Oklahoma College of Medicine and a research scholar with the Peggy and Charles Stephenson Cancer Center and Oklahoma Tobacco Research Center. Wagener completed a clinical psychology/behavioral medicine internship at Alpert Medical School of Brown University, Providence, R.I. He earned doctorate and master's degrees in clinical psychology/behavioral medicine from Oklahoma State University.

Also at OU Children's Physicians is Dr. Christopher “Topher” Barnett, a dentist who specializes in family dentistry. Barnett completed his general practice residency at the Veteran's Administration Medical Center. He earned his doctorate in dental surgery from the University of Oklahoma College of Dentistry.