Regional Medical Laboratory

Lawrence R. Johnson, M.D., F.C.A.P.

Clinical Pathology, Flow Cytometry, Hematopathology, Coagulation, Urinalysis, Special interest in Molecular Pathology

Dr. Johnson is the Chief of Hematology, Coagulation, Flow Cytometry, and Urinalysis at Regional Medical Laboratory.

Dr. Johnson joined Pathology Laboratory Associates, Inc. in 2004. An honors graduate of Dartmouth College in Hanover, New Hampshire as well as a Rhodes Scholar finalist, he completed his Doctor of Medicine from Dartmouth Medical School in 1995. He completed his Anatomic and Clinical Pathology residency at Washington University School of Medicine in St. Louis, Missouri where he trained with Louis P Dehner, M.D., Paul Swanson, Deborah Gersell, Sam Santoro, Jack Ladenson, Lawrence T. Goodnough, Peter Humphrey, Charles Eby, and Mark Wick, M.D. among others. He then went on to complete a Surgical Pathology Fellowship at the University of Pittsburgh School of Medicine with Drs. E. Leon Barnes and Samuel Yousem. This was followed by a hematopathology fellowship under the direction of Dr. Steven H. Swerdlow, the senior editor of the 2008 World Health Organization (WHO) Classification of Tumours of Haematopoietic and Lymphoid Tissues, and Dr. Fiona Craig, also at the University of Pittsburgh School of Medicine. His clinical duties as a hematopathology fellow included evaluation of lymphoid lesions using morphology together with flow cytometric immunophenotyping, cytogenetic, and molecular genotypic studies. His research interests as a fellow centered on using gene chip microarray analysis with Affymetrix gene chips in order to study cases of Epstein Barr Virus (EBV) positive and EBV negative post transplant lymphoproliferative disorders. Dr. Johnson has published several articles in peer reviewed journals including the American Journal of Surgical Pathology as well as Clinical Chemistry. He has been a reviewer for the Journal of Clinical Oncology. He was a competitor for the Stowell-Orbison Award from the United States and Canadian Academy of Pathology in 2004 and he received an honorable mention award in honor of the Outstanding Achievement Student Research Awards at the American Association for Clinical Chemistry in 2000. He is a member of: Tulsa County Medical Society, Oklahoma State Medical Association, American Society of Clinical Pathologists, the Society for Hematopathology, College of American Pathologists, International Society for Laboratory Hematology, the European Society for Pathology, the American Society of Hematology, and the United States and Canadian Academy of Pathology. Dr Johnson is board certified in Anatomic and Clinical Pathology as well as Hematopathology.