John Walker's Email & Phone Number

The University of Texas at Austin

Adjunct Associate Professor/Clinical Affiliate, School of Nursing

January 2006 to Present

Texas Health and Human Services Commission

Medical Director

January 2003 to January 2012

Texas Health and Human Services Commission

Communicable Disease Control Officer

January 2003 to January 2012

Centers for Disease Control and Prevention

Senior Physician, Texas State Physician On-Call Team for Public Health Emergencies

January 2003 to January 2012

Texas Health and Human Services Commission

Chairman, Continuing Medical Education Committee

January 2004 to January 2010

U.S. Department of Homeland Security, National Biodefense Analysis and Countermeasures Center

Medical Consultant | Bioterrorism Preparedness & Response

January 2003 to January 2005

United States Department of Defense

Instructor, Defense Medical Readiness Training Institute, United States Armed Forces

January 2003 to January 2005

Texas Health and Human Services Commission

State Early Hearing Detection and Intervention Coordinator

January 2001 to January 2003

Texas Health and Human Services Commission

Physician Consultant, Office of Investigations and Enforcement

January 1990 to January 2003

Texas Health and Human Services Commission

Medical Director, Bureau of Children's Health

January 2000 to January 2001

Texas Health and Human Services Commission

Primary Prevention Specialist

January 1992 to January 2000

Seton Healthcare Family

Emergency Physician

January 1988 to January 1991

Austin Medicenter, 6343 Cameron Road, Austin, TX 78723

Attending Physician

January 1985 to January 1988

Mercy Health

Resident Physician

January 1982 to January 1985