My name is Casey Buck. My clinical areas of special interest are preventative healthcare and Family Medicine. I enjoy spending quality time with friends and family. I am an avid Houston sports fan, dedicated husband, and dog Dad.

Dr. Natalie Royer is an Assistant Professor in the division of Pediatric Urgent Care at the University of Texas Medical Branch. She earned her Bachelor of Science from Texas Lutheran University. She obtained her Doctor of Osteopathic Medicine from the University of North Texas, Texas College of Osteopathic Medicine and completed her pediatric residency training at The University of Texas Medical Branch.

Dr. Royer joined the University of Texas Medical Branch as faculty in 2018 and is board certified by the American Board of Pediatrics.

Dr. Truong Nguyen is an Assistant Professor in the department of Obstetrics and Gynecology and specializes in Gynecologic Ultrasound, Gynecology, Obstetrics and Women's Health Care.    Dr. Truong received his medical degree from the University of Texas Medical School at Houston and completed his residency at St. Joseph Hospital in 2003.   Dr. Truong is certified by the American Board of Obstetrics and Gynecology.

Ms. Guzman joined the Department of Family Medicine in 2020.

Ms. Guzman earned a Bachelor of Science in Health Education and Community Health from the Texas A&M University in College Station, Texas and a Master in Physician Assistant Studies from UTMB Health in Galveston.

She is certified by the National Commission on Certification of Physician Assistants (NCCPA) and is licensed by the Texas Medical Board.

Dr. Stacy Leung is an outstanding physician holding dual board certifications in Family Medicine and Sports Medicine. She successfully completed her residency in Family Medicine at UTMB and pursued a specialized Sports Medicine fellowship at UTHealth in Houston, as well as an MBA with an emphasis in healthcare. Dr. Leung's clinical expertise spans primary care, musculoskeletal health, sports medicine, and international healthcare.

A native of the Clear Lake area, Dr. Leung feels privileged to contribute to the well-being of the community where she was raised. She approaches her patients with a compassionate and respectful bedside manner, investing time to understand her patients' concerns, and ensuring active patient involvement in the treatment plan. Beyond her medical practice, she actively engages in her local church, assuming various leadership roles and serving as the medical missions coordinator. Her commitment to global health is evident through her participation in mission trips to Mexico, Guatemala, Peru, Brazil, Uganda, and Kenya.

Ms. Peralta joined the UTMB Health Department of Family Medicine in 2015.

Ms. Peralta earned a Bachelor of Science in Nursing and a Master of Science in Nursing from the University of Texas Medical Branch at Galveston. She graduated with honors from the Sigma Theta Tau International Honor Society.

Ms. Peralta is certified as a Family Nurse Practitioner by the American Academy of Nurse Practitioners and is licensed by the Texas Board of Nursing.

Laura Ellender, MSN, RN, CEN, FNP-C is a graduate of University of Texas Medical Branch - Galveston, where she obtained her Master of Science in Nursing. Laura specializes as an experienced board certified family nurse practitioner as well as a certified emergency nurse. Her clinical interests include all aspects of family medicine.

 Provider is LGBTQIA+ Responsive

Dr. Ikram joined UTMB Health's Department of Family Medicine in 2023. He currently serves as Clinical Assistant Professor and will serve as faculty on the Family Medicine Inpatient Service as well as see patients at all three of our Family Medicine Clinics - Dickinson, Island East and Island West.

Dr. Ikram earned a Bachelor of Science in Biology from The University of Texas at Arlington and a Doctorate of Osteopathic Medicine from the University of North Texas Health Science Center Medical School in Fort Worth, Texas. and completed his family medicine residency training at The University of Texas Medical Branch at Galveston.

Dr. Caryl Guillermo received her medical degree from the University of the East Ramon Magsaysay in the Philippines. She completed her residency in Family Practice at the Wichita Falls Family Practice Residency Program, an affiliate of UT-Southwestern in Dallas. Dr. Guillermo is following in the footsteps of her father, Dr. Benjamin Guillermo, who has been a practicing physician in the Clear Lake-area for over 15 years. Dr. Guillermo is board certified with the American Board of Family Medicine. She is a member of the American Academy of Family Practice and American Medical Association. Dr. Guillermo's practice philosophy is to help her patients by listening and caring for them physically, emotionally, and spiritually. She believes in empowering her patients through active participation in their treatment plan and overall health. She loves taking care of entire families and has a special interest in women's health and well-being.

When Dr. Guillermo is not at work taking care of her patients, she enjoys spending time with her family. Dr. Guillermo is a member of Bay Harbour United Methodist Church in League City. Her hobbies include reading, shopping, bowling, and tennis.

Dr. Jean McAtee joined UTMB Pediatric Community Based Clinics in 1995 after completing her pediatric residency at Baylor College of Medicine.  She earned her medical degree from the University of Texas Health Science Center in Houston.  With a commitment to ongoing continuing medical education, she maintains board certification by the American Academy of Pediatrics. She also serves on the school health advisory board for CCISD.

Dr. McAtee's practice focuses on preventative care, including maintenance of childhood immunizations, promoting safety measures and encouraging families to help their children maintain a healthy body weight.  As a mother of four children, she understands the concerns of parents; therefore, she encourages active involvement from them regarding their children's health care.  Her scope of practice includes patients from birth through 18 years of age.  In addition to treating common childhood illnesses, she has experience in caring for children with allergies, asthma, atopic dermatitis/eczema and attention deficit disorder.