Dr. Timmons was born in South Carolina and raised primarily in Charlotte, North Carolina. He attended Davidson College in Davidson, NC, as an undergraduate, followed by the University of North Carolina at Chapel Hill in the M.D.-Ph.D. program, where he completed his doctoral dissertation under Dr. Neil Kirkman in the Division of Human Genetics and Metabolism. He completed a residency in Anatomic and Clinical Pathology at Northwestern Memorial Hospital in Chicago, and served as Chief Resident during his senior year. He then did a two year fellowship in Anatomic and Clinical Pediatric Pathology at The Children's Hospital in Denver under Dr. J. Bruce Beckwith.

Dr. Timmons joined the faculty of UT Southwestern Medical Center in 1988 in the Division of Pediatric Pathology, based at Children's Medical Center Dallas, where he participates in the service activities of the Surgical Pathology, Hematopathology, and Autopsy services. He is active on the Medical Staff of Children's, having served as Secretary of the Medical Staff and chair of the Transfusion, By-Laws, and Medical Records Committees.  He was recognized in 2001 for leading a task force that rewrote the medical staff constitution. He also participates in the Perinatal Autopsy service at Parkland Memorial Hospital. He has been the recipient of three small-group teaching awards for pathology from UT Southwestern medical students.  Since 2002, he has served as Director of Resident and Fellow Education for the Department of Pathology and he serves on UT Southwestern's Graduate Medical Education Committee.

Dr. Timmons is active on the national scene in both pediatric pathology and graduate medical education. He currently is the Chair of the Program Directors Section of the Association of Pathology Chairs, which is the national organization of pathology residency directors. He is one of the eight pathologists on the Review Committee for Pathology of the Accreditation Council for Graduate Medical Education, which accredits residency and fellowship programs, and he serves on the American Board of Pathology's Test Development and Assessment Committee for Pediatric Pathology.  Dr. Timmons is active in the Society for Pediatric Pathology as the current Treasurer, having previously served as a Councilor-at-Large, a member of the Education, Abstract, Practice and Long-Term Planning Committees, Chair of the Slide Survey Subcommittee and of the Fellowship Committee, and Secretary for the Society. He was the recipient of SPP's Presidential Award for Outstanding Service in 2012 for his activities as Fellowship Committee Chair, which included the initial implementation of the ASCP Pediatric Pathology In-Service Examination. In that initiative, he served on the Resident In-Service Examination Committee of the American Society for Clinical Pathology, and he is a current member of the Graduate Medical Education Committee of the College of American Pathologists, as well as a member of several professional task forces on milestones and entrustable professional activities in graduate medical education.


Medical School
University of North Carolina Chapel Hill (1977)
University of North Carolina Chapel Hill (1982)
Northwestern University Medical Center (1983), Pathology
Northwestern University Medical Center (1985), Pathology
Children's Hospital of Denver (1988), Pediatric Pathology

Research Interest

  • Genetic analysis of hemoglobinopathies
  • Pathology of pediatric tumors


Featured Publications LegendFeatured Publications

Application of a standardized screening protocol for diagnosis of invasive mold infections in children with hematologic malignancies.
Cohn SM, Pokala HR, Siegel JD, McClay JE, Leonard D, Kwon J, Timmons CF, Winick NJ Support Care Cancer 2016 Aug
NHERF1/EBP50 and NF2 as diagnostic markers for choroid plexus tumors.
Georgescu MM, Mobley BC, Orr BA, Shang P, Lehman NL, Zhu X, O'Neill TJ, Rajaram V, Hatanpaa KJ, Timmons CF, Raisanen JM Acta Neuropathol Commun 2016 4 1 55
Novel r(2)(p25q31) Cytogenetic Abnormality in a Pediatric Patient With Acute Leukemia of Ambiguous Lineage.
Kim J, Bu L, Koduru PR, Wilson KS, Fuda FS, Kumar KR, Timmons CF, Slone TL, Luu HS Pediatr. Dev. Pathol. 2014 Dec
Homozygous hemoglobin S with concomitant hemoglobin G-Philadelphia: a diagnostic challenge.
Racsa L, Mitui M, Park JY, Timmons CF, Luu HS, Rogers ZR, Park JY Pediatr Blood Cancer 2014 Oct 61 10 1899-900

Honors & Awards

  • Society for Pediatric Pathology
    Distinguished Colleague Award for outstanding service and leadership (2012)
  • Medical Student Teaching Award
    MSII Pathology Course - Small group teaching (2006)
  • Medical Student Teaching Award
    MSII Pathology Course - Small group teaching (2004)
  • Medical Student Teaching Award
    MSII Pathology Course - Small group teaching (2002)

Professional Associations/Affiliations

  • American Board of Pathology (2015)
  • Accreditation Council for Graduate Medical Education (2013)
  • American Society for Pediatric Hematology and Oncology (2009)
  • Association of Pathology Chairs - Program Directors Section (2002)
  • American Society for Clinical Pathology (1989)
  • College of American Pathologists (1989)
  • U.S. & Canadian Academy of Pathology (1989)
  • Society for Pediatric Pathology (1986)
  • American Society of Human Genetics (1980)