Dr. Mark DeLeon
Fredricksburg, TX

Dr. Mark C. DeLeon is board certified in medical oncology, hematology and internal medicine. Dr. DeLeon served for 13 years as a physician in the United States Air Force. While in the Air Force, Dr. DeLeon served as a staff physician and department chair in Hematology-Oncology at Wilford Hall Medical Center in San Antonio.He reached the rank of Lt. Colonel, and gained valuable practice experience treating numerous patients with many varieties of cancer and blood disorders.

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About Dr. Mark DeLeon
  • Gender Male
  • Hospital Affiliations Texas Oncology-Fredricksburg
  • Certifications American Board of Internal Medicine
Specialties
  • Medical Oncology
  • Hematology

Read Patient Reviews For Dr. Mark DeLeon
  • Dr.Deleon Review
    Dr.Deleon treated my wife for throat cancer and then lung cancer. Both times during this worrisome time,he made us feel that there was hope. The staff and nurse's were very caring and showed compassion.We never left the office without any questions unanswered and fully explained in terms we could understand.Today, 4 years later she is still cancer free and we can thank him for it!



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