“My approach to healthcare focuses on lifestyle modification. I believe patients achieve optimum health through positive behavior changes and preventive measures like improved diet and exercise.”

Board Certification

  • Internal Medicine



Baylor College of Medicine
Internal Medicine
Houston, TX

Medical School

University of Texas Southwestern School of Medicine
Doctor of Medicine
Dallas, TX

Undergraduate School

Texas A&M University
Bachelor of Science
College Station, TX

Hospitals Affiliated With

Conroe Regional Medical Center
St. Luke’s Episcopal Health System
St. Luke’s Lakeside Hospital


A native Texan and one of the original founders of Physicians’ Group of The Woodlands, Dr. David Cos is the proud parent of four children and has lived in The Woodlands since 1996. Dr. Cos performed his undergraduate studies at Texas A&M University and earned his Medical Doctorate from the University of Texas Southwestern Medical School. He went on to complete his residency in Internal Medicine at the Baylor College of Medicine. Dr. Cos has privileges at St. Luke’s Episcopal, and St. Luke’s Lakeside Hospital.