Meet the Team at Austin Oaks Hospital
Our Physicians
Carlos Tirado, MD
Executive Medical Director
- Joined Austin Oaks Hospital in November 2019
- August 2006 – Fellowship in Addiction Psychiatry, University of Pennsylvania Center for Studies of Addition, Philadelphia, PA
- June 2003 – Residency in Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX
- June 1999 – MD, University of Texas Health Science Center, Houston, TX
- Board Certifications:
- American Board of Psychiatry and Neurology, General Psychiatry, 2004
- American Board of Psychiatry and Neurology, Addiction Psychiatry, 2014
Isela A. Werchan, MD
- Joined Austin Oaks Hospital in November 2019
- 2016 – Residency Psychiatry Program, University of Texas Austin/Dell Medical School Psychiatry
- 2012 – MD, University of Texas Medical Branch
- 2007 – BS in Microbiology, University of Texas El Paso
Jennifer Schaefer, MD
- Joined Austin Oaks Hospital in November 2019
- 2016 – Present – Fellowship in Child and Adolescent Psychiatry, University of Texas Austin/ Dell Medical School
- 2016 – Residency Psychiatry Program, University of Texas Austin/ Dell Medical School
- 2014 – MD, University of Texas Health Science Center of San Antonio
- 2008 – BS in Psychology, Texas A&M University
Kristen Starzynski
PMHNP-BC, Psychiatric Nurse Practitioner for Adult, and Adolescent Units
- Joined Austin Oaks Hospital in October 2018
- May 2017 – MSN, University of Texas, Austin, TX
- December 2006 – BA in Sociology, University of Texas, Austin, TX
- Board Certifications:
- American Nurses Credentialing Center, Certified Psychiatric Nurse Practitioner, July 2017
Shiva Lam, MD
Service Director, Latency PHP
- Joined Austin Oaks Hospital in December 2016
- June 1998 – Residency in Child and Adolescent Psychiatry, Austin State Hospital, Austin, TX
- June 1998 – Residency in Psychiatry, Austin State Hospital, Austin, TX
- June 1986 – MD, Ghandi Medical College, Secunderabad, India
- Board Certifications:
- American Board of Psychiatry and Neurology in Psychiatry, 2013
Our Leadership & Staff
- Steve Kelly, Chief Executive Officer
- Margo Wilhelm, Chief Financial Officer
- Meg Haden, Chief Operating Officer
- Kim Maus, Chief Nursing Officer / Director of Nursing
- Ray Combs, Director of Clinical Services
- Susan Bednar-Haynes, Director of Expressive Therapy & Patient Advocate
- Sarah White, Director of Admissions
- Lena Laxton, Director of Risk Management
- Michael Lopez, Director of Business Development
- Samantha Costello, Director of Medical Records
- Colleen Lewis, Director of Human Resources
- Amy Cline, Director of Utilization Review

Always Here to Help
We’re available 24 hours a day, seven days a week to provide a no-cost mental health assessment for you or your loved one. Call us at 512-440-4800, send us a message or visit our facility to get started. In the case of a medical emergency or crisis, please dial 911 or go to the nearest emergency room.