UT Health San Antonio Executive and Leadership Team

August, 2026

Leadership Overview

UT Health San Antonio has 10 executives leading key functions including administration, operations, financial management, medical oversight, and clinical governance.

Committed to advancing medical education and patient care, UT Health San Antonio drives excellence through rigorous research, innovative clinical practices, and comprehensive nursing and dentistry training programs across the region.

Leadership Roles at UT Health San Antonio

  • Chief Financial Officer - Anthony Lobasso
  • Chief Financial Officer, Healthcare - Tim Evans
  • Chief Operating Officer - Jeremy Viles
  • Chief of Staff To the Senior Executive Vice President and Chief Operating Officer - Ana Touchstone
  • President, House Staff Council At Ut Health (SAN Antonio) - Tanisha Mitra
  • Chief of Staff - Shelly Taylor
  • Assitant Professor, Chief Of Staff, Office of the Medical Director - Mark Dieterle
  • Chief Medical Officer, Glenn Biggs Institute For Alzheimer's & Neurodegenerative Diseases - Alicia Parker
  • Associate Chief Medical Officer, Uthp Ambulatory Services - Chatchawin Assanasen
  • M. D. - Marc Weiner
  • Anthony Lobasso - Chief Financial Officer

    Anthony Lobasso, the Chief Financial Officer at UT Health San Antonio, manages the fiscal health and budgetary planning for the university's academic and research divisions. Lobasso directs financial reporting, capital allocation, and long-term investment strategies to support the institution's growth. By overseeing the financial integrity of educational programs and research initiatives, the Chief Financial Officer ensures that resources remain available for cutting-edge medical treatments. Anthony Lobasso collaborates with the Board to maintain fiscal transparency and regulatory compliance. This leadership role involves analyzing market trends to secure funding for clinical expansion and infrastructure development. Through rigorous financial oversight, Lobasso supports the university's ability to provide high-quality nursing and dentistry education. The Chief Financial Officer maintains a focus on sustainable growth, ensuring that the financial foundation remains robust enough to support the evolving needs of the healthcare sector and the broader patient population.

    Tim Evans - Chief Financial Officer, Healthcare

    Tim Evans, the Chief Financial Officer, Healthcare at UT Health San Antonio, manages the financial operations specifically related to the university's clinical and patient care services. Evans directs revenue cycle management, billing operations, and clinical budget planning to ensure the financial viability of healthcare delivery. By overseeing the fiscal performance of clinical departments, the Chief Financial Officer, Healthcare supports the expansion of patient treatment services. Tim Evans collaborates with medical leadership to align financial resources with clinical needs and patient care goals. This role involves analyzing healthcare market data to optimize service delivery and improve operational margins. Through strategic financial planning, Evans ensures that the university can continue to provide advanced medical treatments and clinical practices. The Chief Financial Officer, Healthcare maintains a focus on fiscal responsibility, ensuring that the clinical enterprise remains financially sustainable while delivering high-quality care to the community.

    Jeremy Viles - Chief Operating Officer

    Jeremy Viles, the Chief Operating Officer at UT Health San Antonio, directs the daily business operations and infrastructure necessary for medical education and clinical service delivery. Viles oversees the logistical frameworks that support patient care, research, and academic programs. By optimizing resource allocation and facility management, the Chief Operating Officer ensures that the university maintains its high standards for clinical excellence. Jeremy Viles coordinates with other C-suite leaders to implement scalable solutions that enhance operational efficiency across the institution. This role involves managing complex systems that facilitate the delivery of treatments and educational services. Through strategic oversight of operational assets, Viles drives the growth and sustainability of the university's clinical footprint. The Chief Operating Officer maintains a focus on long-term institutional stability, ensuring that all operational activities align with the core mission of providing advanced healthcare services to the community.
    Jeremy Viles

    Ana Touchstone - Chief of Staff To the Senior Executive Vice President and Chief Operating Officer

    Ana Touchstone, the Chief of Staff To the Senior Executive Vice President and Chief Operating Officer at UT Health San Antonio, manages the executive office's strategic priorities and operational communications. Touchstone directs the flow of information between the Senior Executive Vice President and other leadership teams to ensure organizational alignment. By overseeing high-level projects and administrative initiatives, the Chief of Staff To the Senior Executive Vice President and Chief Operating Officer facilitates the execution of the university's operational strategy. Ana Touchstone coordinates with various departments to ensure that the executive vision translates into actionable clinical and educational outcomes. This role involves managing complex stakeholder relationships and supporting the operational efficiency of the university's leadership. Through meticulous attention to detail, Touchstone ensures that the executive office remains focused on the core mission of advancing medical education and healthcare services across the region.

    Tanisha Mitra - President, House Staff Council At Ut Health (SAN Antonio)

    Tanisha Mitra, the President, House Staff Council At Ut Health (SAN Antonio) at UT Health San Antonio, represents the interests of residents and fellows within the university's medical education system. Mitra directs the council's initiatives to improve the training environment and support the professional development of house staff. By facilitating communication between trainees and institutional leadership, the President, House Staff Council At Ut Health (SAN Antonio) ensures that the needs of the medical staff are addressed. Tanisha Mitra oversees programs that enhance the educational experience and promote well-being among residents. This role involves advocating for resources and policy changes that support the university's mission of training future healthcare leaders. Through active engagement with the administration, Mitra ensures that the house staff remains a vital part of the clinical and educational community. The President, House Staff Council At Ut Health (SAN Antonio) maintains a focus on fostering a supportive and effective training environment.

    Shelly Taylor - Chief of Staff

    Shelly Taylor, the Chief of Staff at UT Health San Antonio, manages administrative workflows and coordinates strategic initiatives across the university. Taylor directs internal communications and ensures alignment between executive leadership and departmental objectives. By streamlining operational processes, the Chief of Staff facilitates efficient decision-making within the medical education and healthcare service sectors. Taylor oversees cross-functional projects that support the institutional mission of providing high-quality patient care and research. This leadership role requires constant collaboration with the Board and senior administrators to maintain organizational standards. Through meticulous planning and execution, Shelly Taylor optimizes the daily functions of the office, ensuring that institutional goals remain the primary focus. The Chief of Staff maintains a high level of operational readiness, supporting the broader clinical and educational objectives that define the university's impact on the Texas healthcare landscape.

    Mark Dieterle - Assitant Professor, Chief Of Staff, Office of the Medical Director

    Mark Dieterle, the Assitant Professor, Chief Of Staff, Office of the Medical Director at UT Health San Antonio, bridges the gap between clinical practice and administrative oversight. Dieterle directs the operational activities within the Office of the Medical Director, ensuring that clinical standards remain consistent across all patient care services. By integrating academic research with medical administration, the Chief Of Staff facilitates the implementation of evidence-based treatments. Mark Dieterle oversees the coordination of medical staff and ensures that clinical protocols align with institutional goals. This role involves managing the intersection of education and patient care, supporting the university's mission to provide superior healthcare services. Through active participation in clinical governance, Dieterle ensures that the medical director's office functions efficiently. The Assitant Professor, Chief Of Staff, Office of the Medical Director maintains a focus on improving patient outcomes through rigorous clinical oversight and academic excellence.

    Alicia Parker - Chief Medical Officer, Glenn Biggs Institute For Alzheimer's & Neurodegenerative Diseases

    Alicia Parker, the Chief Medical Officer, Glenn Biggs Institute For Alzheimer's & Neurodegenerative Diseases at UT Health San Antonio, directs the clinical strategy and patient care protocols for neurodegenerative research and treatment. Parker oversees the medical staff and ensures that clinical practices at the institute meet the highest standards of care for patients with Alzheimer's and related conditions. By integrating research findings into clinical practice, the Chief Medical Officer, Glenn Biggs Institute For Alzheimer's & Neurodegenerative Diseases advances the university's mission of providing specialized medical services. Alicia Parker collaborates with researchers and clinicians to develop innovative treatment pathways. This role involves managing the clinical operations of the institute to ensure patient safety and service quality. Through strategic leadership, Parker drives the institute's impact on neurodegenerative disease care, ensuring that the university remains at the forefront of medical innovation and patient support.

    Chatchawin Assanasen - Associate Chief Medical Officer, Uthp Ambulatory Services

    Chatchawin Assanasen, the Associate Chief Medical Officer, Uthp Ambulatory Services at UT Health San Antonio, directs the clinical operations and patient care standards for ambulatory services. Assanasen oversees the medical staff and ensures that outpatient clinics provide efficient and high-quality care. By optimizing clinical workflows and patient access, the Associate Chief Medical Officer, Uthp Ambulatory Services supports the university's mission to deliver accessible healthcare services. Chatchawin Assanasen collaborates with administrative and clinical leadership to implement best practices in ambulatory care. This role involves managing the quality of service delivery and ensuring compliance with medical standards. Through strategic oversight of outpatient operations, Assanasen drives the effectiveness of the university's clinical footprint. The Associate Chief Medical Officer, Uthp Ambulatory Services maintains a focus on improving patient experiences and clinical outcomes across all ambulatory care settings within the university's network.

    Marc Weiner - M. D.

    Marc Weiner, the M. D. at UT Health San Antonio, provides expert clinical care and contributes to the university's medical education and research initiatives. Weiner directs patient treatment plans and oversees clinical practices within the specialized medical departments. By applying advanced medical knowledge to patient care, the M. D. ensures that the university maintains its reputation for excellence in healthcare services. Marc Weiner collaborates with other medical professionals to improve clinical outcomes and develop new treatment protocols. This role involves mentoring students and residents, supporting the university's mission to train the next generation of healthcare providers. Through active participation in clinical research, Weiner contributes to the advancement of medical science. The M. D. maintains a focus on patient-centered care, ensuring that all clinical activities align with the university's commitment to providing high-quality medical services to the community.

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    Frequently Asked Questions Regarding UT Health San Antonio Top Executives and Leadership Team

    Who leads UT Health San Antonio?
    UT Health San Antonio is led by Anthony Lobasso (Chief Financial Officer), along with executives such as Tim Evans (Chief Financial Officer, Healthcare) and Jeremy Viles (Chief Operating Officer).
    Who is part of UT Health San Antonio’s executive team?
    The executive team of UT Health San Antonio includes leaders such as Anthony Lobasso (Chief Financial Officer), Tim Evans (Chief Financial Officer, Healthcare), Jeremy Viles (Chief Operating Officer) and other senior executives.
    How many executives does UT Health San Antonio have?
    UT Health San Antonio has 10 executives leading key business areas.
    What roles are included in UT Health San Antonio’s leadership team?
    The leadership team of UT Health San Antonio includes roles such as Chief Financial Officer, Chief Financial Officer, Healthcare, Chief Operating Officer, Chief of Staff To the Senior Executive Vice President and Chief Operating Officer, President, House Staff Council At Ut Health (SAN Antonio).