Dr. Hartsell Dr. Hartsell is the Laboratory Director of Regional Medical Laboratory at St John Medical Center and Chief of Blood Bank for Regional Medical Laboratory at St. John Medical Center. He is currently the Chairman of the St. John Medical Center Department of Pathology. Dr. Hartsell has been a member of Pathology Laboratory Associates, Inc. since 1994. After graduating from University of Texas at Austin with a Bachelor of Business Administration, Dr. Hartsell received his Doctor of Medicine at the University of Texas Southwestern Medical Center at Dallas. He received the Hemphill-Gojer Scholarship and was a member of the Alpha Omega Alpha Honor Medical Society. Dr. Hartsell completed an internship in Internal Medicine and then completed his residency in Anatomic and Clinical Pathology at Parkland Memorial Hospital, Veterans Administration Medical Center and Children’s Medical Center in Dallas. He is a diplomate of the American Board of Pathology in anatomic and clinical pathology. Dr. Hartsell is past president of Pathology Laboratory Associates and Vice President of Regional Medical Laboratory. In 2000 he was president of the Oklahoma State Association of Pathologists and held the position of Vice Chair of Utica Physicians’ Association from 2002 to 2011. He is past chairman of the UPAL Finance committee. He was a board member at the Oklahoma Blood Institute for 3 years, and Chairman of the Board of Directors at ValuMed, an IPA for 2 years. Dr. Hartsell holds a special interest in clinical pathology, transfusion medicine and coagulation.