Ambulatory Care Leadership Team | UC Davis Health

Senior Vice President, Associate Chief Operating Officer for Ambulatory Care Services

In this role, Mintner drives the strategic direction, operational efficiency and performance of Ambulatory Care Services, ensuring alignment with UC Davis Health’s integrated health care mission. 

Vice President, UC Davis Comprehensive Cancer Center, Cell and Gene Therapy

Bresnahan provides strategic and operational leadership across inpatient and outpatient oncology services, infusion centers and the Cancer Care Network, while also overseeing the development and expansion of the Cell and Gene Therapy service line.

Executive Director, Ambulatory Operations

Del Pizzo provides operational oversight for various specialty and surgical clinics across multiple locations. He is involved in ambulatory expansion projects, programmatic planning efforts and improving access to care.

Executive Director, Patient Access

Franck ensures patients and families can access care in a convenient and meaningful way. His teams at the Patient Contact Center represent a central “front door” to access the high quality of care delivered in our outpatient clinics.

Associate Chief Medical Officer, Ambulatory Surgical Care

Fuller is the Associate Chief Medical Officer for Ambulatory Surgical Care at UC Davis Health. He provides strategic leadership and clinical support for surgical specialty services, with a focus on advancing access, quality and innovation in outpatient surgical care. 

Associate Chief Medical Officer, Ambulatory Specialties

Gulati oversees clinical operations and strategic growth across 20 medical specialties spanning all ambulatory sites. In collaboration with clinical medical directors, he focuses on aligning specialty care delivery with institutional goals, enhancing operational performance, and expanding access to high-quality, patient-centered services.

Chief of Population Health and Accountable Care

Gupta has led over 100 clinician and care team members in population health, affordability improvement initiatives, and value analytics through her current role. 

Chief Physician, Community Physicians Groups

Hall facilitates the delivery of high-quality, complex care to a large patient panel in the outpatient setting. He oversees a team of 120 physicians and staff for UC Davis Health’s primary care practices. 

Executive Director, Ambulatory Operations  

Harris provides strategic and operational leadership for primary care practices across both hospital-based and Community Physicians Group clinics, including Internal Medicine and Family Medicine at the Lawrence J. Ellison Ambulatory Care Clinic, Midtown Primary Care, Midtown Commons, Healthy Aging Clinic, Integrative Medicine, Convenient Care and multiple regional sites. 

Executive Director, Ambulatory Operations

Mullen supervises day-to-day clinic operations, systems, policy development and implementation, and fiscal performance across the system’s specialty clinics. 

Executive Director, Ambulatory Operations

Nguyen provides strategic and operational leadership across 12 regional care clinics, supporting both primary and specialty services. Her portfolio includes oversight of the Community Physician Group (CPG) primary care clinics in Carmichael, Rancho Cordova, Auburn, Rocklin, Roseville and Folsom. She also oversees Occupational Employee Health Services, Outpatient Dietary Services and facilities operations for the Folsom Medical Office Building.

Associate Chief Nursing Executive, Ambulatory Operations

Romero provides strategic and clinical leadership for ambulatory primary and specialty care clinics, overseeing more than 700 clinical staff. Her leadership supports over 1.7 million patient visits annually across 56 clinic sites.

Interim Executive Director, Ambulatory Operations

Sierra is the Interim Executive Director of Ambulatory Operations for UC Davis Health. She oversees strategic planning and operational program management across multiple specialty clinics, leading her teams in delivering high-quality patient care.

Executive Director, Ambulatory Operations

Tompkins is Executive Director of Ambulatory Operations at UC Davis Health, where she provides strategic and operational leadership of specialty clinics that include OB/GYN, the Fetal Care Treatment Center and the Prenatal Diagnostic Centers. She also manages various pediatric specialties, including endocrinology, infectious diseases, allergy, and neurology, at the MIND Institute.