About the Doctors


David A Marks, MD

Board Certified Pulmonary, Critical Care & Sleep Medicine

  • Born 1974 in Dallas,Texas
  • Graduated high school from Sherman, Texas
  • Attended college at Austin College in Sherman,Texas, graduated cum laude
  • Worked as paramedic during college
  • Graduated medical school in 2001, University of Texas Health Science Center San Antonio, member of AOA (medical honor society)
  • Completed Internal medicine Residency 2004, UTHSCSA
  • Completed pulmonary/critical care/sleep fellowship 2007, UTHSCSA
  • During fellowship competed in national competition “chest challenge” took second place
  • Currently board certified in internal medicine, pulmonary medicine, sleep medicine, and critical care medicine
  • Outside activities include scuba diving and flying (currently holds commercial multi engine IFR certificate)
  • Professional interests include copd, pulmonary hypertension, sleep disorders and critical care medicine.

Contact Us:

115 Gallery Circle, Suite 102
San Antonio, TX 78258
Phone: (210) 494-4220
Fax: (210) 494-4227