President/Board Chairman for ADC Physicians, PA as well as Board Member for St. David’s Healthcare Board of Governors. John Villacis, M.D., MSc, is a board-certified allergy, asthma and immunology specialist who sees both adults and children for the evaluation and treatment of allergy associated disorders. He and his family have been in Austin for over 14 years and have enjoyed all what Austin has to offer. He is a history enthusiast, with interests in rock music and traveling.


Medical School
Texas Tech University School of Medicine, Lubbock, TX

Internal Medicine, The University of Texas Medical Branch, Galveston, TX

Internal Medicine, The University of Texas Medical Branch, Galveston, TX

Allergy and Immunology, Tulane University Health Sciences Center, New Orleans, LA

Certifications & Memberships

American Board of Allergy and Immunology

Certified Anaphylaxis Community Expert by the Allergy & Asthma Network Mothers of Asthmatics (AANMA) and American College of Allergy, Asthma & Immunology (ACAAI)


Fellow, American Academy of Allergy, Asthma, and Immunology (FAAAAI) Texas Asthma, Allergy and Immunology Society (TAAAIS) Travis County Medical Society Texas Medical Association Association of Staff Physician Recruiters



Languages Spoken

Spanish (Fluent)


Allergy and Immunology

Office Locations

North Clinic
12221 MoPac Expressway North
Austin, TX 78758-2483
Phone: (512)901-1111

Additional Locations

Circle C

5701 W. Slaughter Ln. Building C
Austin, TX 78749