Advanced Nurse Practitioners


Mary Ann Fore, R.N., C.N.M., M.S.
Chief Operating Officer


Mary Ann Fore is a native of the Rio Grande Valley and pioneered the role
of Women’s Healthcare Nurse Practitioner in Brownsville. She graduated
from The University of Texas Health Science Center School of Nursing at
San Antonio. After employment at B.I.S.D. as a school nurse, she attended
The University of Texas Health Science Center at Southwestern Medical School Advanced Nurse Practitioner Program in Dallas and returned to Brownsville joining Dr. D. Martinez in collaborative OB /GYN practice. As an experienced nurse practitioner, she completed graduate studies at Georgetown University, Washington, D.C. receiving her Master of Science in Nurse Midwifery. Mary Ann is committed to providing quality holistic healthcare by empowering women to take more active roles in making decisions about their health care and lifestyle habits.

Madeleine Corbeil, R.N.C. - W.H.N.P.

Madeleine Corbeil born in Guadalajara, Mexico and raised in Brownsville, she graduated from the University of Texas at Brownsville with an Associate Degree in Applied Science. She was employed at Valley Regional Medical Center in Brownsville in the Labor and Delivery before joining Clinica Santa Maria as the Clinical Coordinator. Madeleine continued her studies at University of Texas Health Science Center Southwestern Medical School Advanced Nurse Practitioner Program in Dallas and received certification as a Women’s Health Care Nurse Practitioner. She returned to Clinica Santa Maria as the Women’s Healthcare Nurse Practitioner.  Madeleine has a passion for maternity and adolescent care. She is culturally competent and committed to giving accessible and quality healthcare to all patients.

Vikki Presas, RNC, BSN, WHNP

Vikki Presas obtained training at the University of Texas Southwestern, Dallas, and is a National Certification Corporation Board-Certified Women's Healthcare Nurse Practitioner. She earned her Bachelor of Science, Nursing from South Dakota State University, and is a member of Nurse Practitioners in Women's Health, Association of Women's Health, and Obstetric and Neonatal Nurses.

"I went into nursing because I love helping people and I felt that I could make a difference. I am very passionate about my job and enjoy working with women as they progress through different stages in their life. They deserve someone who cares for them and respects them as a whole. Being a breast cancer survivor and Air Force officer/veteran makes me appreciate even more the challenges, difficulties and obstacles women face. My patients know I truly care about them. I never rush them and always give them the time they need."

"I especially like working with teenagers and young adults. I feel that I can make an impact on their future. These groups of people are hungry for knowledge, and they deserve to gain the most accurate information available so they can make appropriate decisions for their future. They deserve someone who cares and respects them, but will not judge them. It is very important to me to listen to them, educate them and together develop the right plan of care.