Colon, Gregory

Gregory L. Colon, M.D.

Board-Certified Family Medicine


Dr. Colon recently relocated to Wimberley, Texas with his wife and five children. He was in private practice in the Dallas-Fort Worth area for the past 23 years. He was an associate professor in Family Medicine at UT Southwestern Medical School for 15 years.

Dr. Colon has a wealth of experience in primary care, urgent care and preventative medicine. He believes in maintaining a healthy lifestyle and encourages his patients to do the same. He enjoys traveling, college football, outdoor activities, ranching and spending time with his family.

Professional Training & Affiliations

  • Family Medicine Residency at St. Joseph’s Hospital and Trauma Center, Phoenix, AZ
  • Medical Degree at Texas Tech Health Sciences Center, Lubbock, TX
  • BBA Finance at University of Texas at Austin, TX
  • Member of American Academy of Family Physicians, Texas Academy of Family Physicians, Texas Medical Association

Areas of Interest:

  • Family Medicine
  • Preventative Care
  • In-office Procedures
  • Employee Health and Fitness

Services Offered:

  • Preventative Medicine, Wellness, Annual physicals
  • Routine care for newborns to geriatrics
  • Care and monitoring of chronic conditions such as diabetes
    high blood pressure, high cholesterol, heart disease, thyroid conditions and men’s testosterone replacement therapy
  • ADD/ADHD evaluation and management
  • Immunizations
  • Allergies and seasonal influenza
  • Sports injuries
  • Weight management
  • Smoking cessation
  • Minor procedures
  • Travel Medicine

MedFirst Primary Care at Hunter Road
2108 Hunter Rd., Suite 116
San Marcos, TX 78666
Phone: (512) 754-7700
Fax: (512) 754-0012