Our Clinicians

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.

George Delclos, MD, MPH, PhD
Medical Director

George Delclos, MD, MPH, PhD

George  Delclos
UT Health Services
713-500-9459
RAS-W1018
George.Delclos@uth.tmc.edu
View Curriculum Vitae

Thomas A Mackey, PhD, RN, FAAN
Professor

Christina Gillman, RN, FNP

Christina Gillman, RN, FNP

UT Health Services
713-500-3260
Christina.Gillman@uth.tmc.edu

Daisy G Mullassery, DrNP, RN, WHNP-BC
Assistant Professor

Daisy G Mullassery, DrNP, RN, WHNP-BC

Daisy G Mullassery
Department of Graduate Studies
713-500-2077
SON-792
Daisy.G.Mullassery@uth.tmc.edu
View Curriculum Vitae

Dr. Daisy Mullassery has more than 30 years of experience in the field of nursing in various capacities: Staff Nurse, Nurse-Midwife, Nurse Practitioner, and Nurse Educator. Dr. Mullassery completed her undergraduate education in Nursing from Calicut University in India. After 2 years of clinical teaching at Bombay Hospital and Research Center, she migrated to Doha, Qatar, to work as a Senior Nurse Midwife at Hamad Medical Corporation (HMC). During her time there, Dr. Mullassery had the opportunity to care for patients ranging from the royal family members of Qatar to the Bedouins out in the desert. She recognized her passion for Women's Health care issues while working in the Middle East and was instrumental in developing policies and protocols of Midwifery practice in HMC. She also worked as a clinical adjunct faculty for Qatar University.

After immigrating to the United States, Dr. Mullassery began her career as a Labor and Delivery Nurse in Long Island, New York and then in Philadelphia. She furthered her education in Nursing while working in Philadelphia and graduated from Drexel University with a Master's and a Doctoral degree in Women's Health. She worked as a full-time, board-certified Women's Health Nurse Practitioner (WHNP-BC) in an inner-city hospital in Philadelphia before moving to Houston, Texas in 2013.

Currently, she works as an assistant professor of clinical nursing at the University of Texas Health Science Center at Houston, Texas. She predominantly teaches in the graduate program teaching nurse practitioner students Advanced Pathophysiology and is actively involved in advising DNP students for their scholarly projects. Additionally, she maintains an active practice by providing clinic services to patients one day per week at the University of Texas Health Services clinic in Houston.

Her research interests include vaccine preventable cancers such as Human Papillomavirus (HPV) related cancers, Sexual and Gender Minority healthcare issues and curriculum development for healthcare education. She has completed the Community of Medical Education Scholars (CoMES) program in 2022. She currently is a Co-Investigator (Co-I) for 3 active funded research projects. Two of these projects involve interprofessional collaboration with the school of Public Health and the School of Dentistry.

Related News Items

Publication: Experiential Skills Laboratory Experiences in a Didactic Undergraduate Reproductive Health Course (Jun 2022)

Houston Chronicle salutes three faculty members, two students (May 2022)

Mirna Puesan, MD

Mirna Puesan, MD

UT Health Services
713-500-3267
Mirna.A.Puesan@uth.tmc.edu

Angela M Rutherford, MSN, RN, ANP-C
Advanced Care Provider Coordinator

Angela M Rutherford, MSN, RN, ANP-C

Angela M Rutherford
UT Health Services
713-500-3249
UCT-1620
Angela.M.Rutherford@uth.tmc.edu

Related News Items

Telehealth Gains Ground Amid COVID-19 (May 2020)

Hilda Wist, MSN, RN, FNP-C
Nurse Practitioner

Hilda Wist, MSN, RN, FNP-C

Hilda  Wist
UT Health Services
713-500-3267
UCT-1620
Hilda.Wist@uth.tmc.edu