UTHS Clinicians and Staff

UT Health Services (UTHS) - Houston is staffed by highly qualified health-care personnel and staff who collaborate to provide expert comprehensive health and illness care. Nurse practitioners provide the majority of care at UTHS. As such, the nurse practitioner (NP) assumes an expanded role in providing high-quality primary health care with an emphasis in specific areas of health promotion, illness prevention and health restoration. A physician is available in clinic on a periodic basis to meet any additional medical needs. Likewise, the physician is available to the NP for consultation. You are always welcome to see the provider of your choice.

Susan Y Parnell, RN, MPH, PhD, CIC

Director, Corporate Occupational Health

George Delclos, MD, MPH, PhD

Medical Director

Thomas A Mackey, PhD, RN, FAAN


Delorean Alexander, MSN, RN, FNP-C

Nurse Practitioner

Darrine Abouchelleih, RD

Diabetes Educator

Angela M Rutherford, MSN, RN, ANP-C

Lead Nurse Practitioner

Hilda Wist, MSN, RN, FNP-C

Nurse Practitioner


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