Keagan Lee, MD


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Dr. Keagan Lee is board-certified in dermatopathology by both the American Board of Dermatology and the American Board of Pathology.  He received his medical degree at the University of Texas Medical School at Houston, after which he completed an AP/CP Residency at Columbia University Medical Center  and dermatopathology fellowship at the Ackerman Academy of Dermatopathology in New York, NY.

Dr. Lee founded Sagis, PLLC, an entirely physician-owned sub specialty diagnostic pathology laboratory located in Houston, TX. Sagis has rapidly grown to be one of the largest dermatopathology laboratories in Texas. 

Dr. Lee has researched various topics including melanoma, merkel cell carcinoma, and sarcoma, and his articles have been published in pathology journals such as Clinical Cancer Research and the American Journal of Dermatopathology.  He holds Assistant Clinical Professor positions at the University of Texas Health Science Center at San Antonio, Texas A&M University College of Medicine, and University of North Texas/TCOM in Fort Worth, where he regularly teaches dermatopathology to medical students and residents. 

Dr. Lee also serves as a Delegate to the American Medical Association for the United States and Canadian Academy of Pathology (USCAP), as well as a Vice Chair for The Dermatology Foundation.  In his spare time, he enjoys spending time with his family, traveling, and coaching little league baseball.



Ackerman Academy of Dermatopathology
New York, NY


The University of Texas Medical School at Houston
Houston, TX


Anatomic and Clinical Pathology
Columbia University Medical Center
New York, NY


University of Notre Dame
Notre Dame, IN

Board Certifications


The American Board of Dermatology and The American Board of Pathology


The American Board of Pathology

Research & Publications

Dr. Lee has performed research in a variety of topics focused around abdominal tumors, trauma to muscle tissue and angiosarcoma of which were published in Cutis, Transplantation and Clinical Cancer Research. He has also presented at the UT Health Science Center at Houston Summer Research Program Abstract Conference, the Japanese Society of Nuclear Medicine Meeting, the American Society for Apheresis 27th Annual Meeting and the USCAP Annual Meeting.

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