Dr. Doenlen is board certified in Forensic Psychiatry, General Psychiatry, and Child-Adolescent Psychiatry. Dr. Doenlen earned his medical degree in 1980 from Jefferson Medical College of the Thomas Jefferson University in Philadelphia, Pennsylvania. He also completed his internship and residency training at Thomas Jefferson University Hospital. In 1985, he completed a Child Psychiatry Fellowship, also at Thomas Jefferson University Hospital.
Dr. Doenlen's practice is focused on providing mental health care for children, adolescents, and their families. He provides psychiatric evaluations and expert testimony for use by the courts and legal system. His writing has been published in professional journals and community periodicals, and he has given numerous lectures and seminars for physicians and community groups.