Dr. Crystal Sierra joined UTMB Health in November 2010.  After completing her undergraduate studies at The University of Texas - Pan American in Edinburg, Texas, Dr. Sierra earned her medical degree from The University of Texas Medical Branch in Galveston in 2006. In 2009, she completed her Residency in Pediatrics at UTMB. Prior to working for UTMB, Dr. Sierra worked as a pediatrician in Clear Lake.

Dr. Sierra is board certified by The American Board of Pediatrics. She is also certified in Basic Life Support and Pediatric Advanced Life Support. She has her Texas medical license, and is a member of The American Academy of Pediatrics.

Dr. Sierra is married to Dr. James T. Sierra, a dentist in Friendswood, and they have two beautiful daughters, Gabriella and Francesca.  Dr. Sierra is fluent in Spanish and also enjoys reading and traveling with her family in her spare time.  She has enjoyed living in the area, and is excited to be giving back to the community!

Brittany Menefee was born in the great state of Texas and was raised in Galveston County. She obtained her Bachelor of Science in Nursing from Texas State University in 2012. Brittany started her nursing career as an Emergency Room RN in Round Rock, Texas. She then moved back to the Houston area, to be closer to family, and began working as an Emergency Room nurse at Ben Taub Hospital. Brittany continued working at Ben Taub throughout her Master's degree program. She graduated from the University of Texas Medical Branch in Galveston, Texas in December 2017. Brittany is board certified as a Family Nurse Practitioner by the American Academy of Nurse Practitioners.

Brittany enjoys spending time with her family and her rescue dogs.

Dr. Lauren Raimer-Goodman was born on Galveston Island and grew up as part of the UTMB family. She officially joined UTMB Health in October 2011. After completing her undergraduate work at Wake Forest University, she attended Baylor College of Medicine where she received her medical degree in 2008. She completed her residency in Pediatrics at Texas Children's Hospital in 2011.

Dr. Raimer-Goodman is a member of the American Academy of Pediatrics and the Texas Medical Association. She has a special interest in pediatric advocacy and global health. Her husband, Dr. Michael Goodman, is a researcher in public health with a focus on social epidemiology and global health. They have two delightful children whom they adore.

Clinically, Dr. Raimer-Goodman has many interests including infants, breastfeeding, asthma, allergies, acne, eczema and other skin disorders, sports related injuries, healthy eating and much more.

 Provider is LGBTQIA+ Responsive

Nancy Ross comes from a long line of health care professionals and is a long time nurse, first specializing in cardiac surgery, then wanting more patient contact, obtained her master's degree and becoming a Nurse Practitioner. From there Nancy worked in a private solo practice in Alvin for three years, enjoying seeing a wide variety of patient conditions, including our older patients. Upon coming to UTMB, Nancy worked with oncology patients in the Department of Surgery before working in primary care and enjoyed the professional challenges of working with the patient population.

A recurrent theme of Nancy's career is that she enjoys challenges and learning at every opportunity to provide the best outcomes for her patients. When her mother retired at 67 from nursing, her mother found new challenges to enjoy in a new career as a published poet and author. Nancy took this to heart, understanding that every phase of life is a challenge to be relished and enjoyed. Nancy also enjoys quilting, baking, travelling and reading a good book.

Dr. Maria San Andrés received her B.S. in Biomedical Science at Texas A&M University and her M.D. from Texas A&M Health Science Center College of Medicine in College Station, TX. She completed her Pediatric residency at UTMB. After residency, she began working at UTMB in the General Pediatrics Clinic and at the St. John's Hospital Newborn Nursery. She currently works in the outpatient General Pediatric Clinic and enjoys working with medical students and residents.

Dr. Matthew J. Hay joined UTMB Pediatric Associates in 1997. Board-certified by the American Board of Pediatrics, Dr. Hay completed his residency in pediatrics and received his doctorate in medicine from the University of Texas Medical Branch in Galveston. Dr. Hay holds a bachelor's degree from Stephen F. Austin State University. He is also the Medical Director of the UTMB Health Primary and Specialty Care Clinic in Texas City.

Dr. Hay has been named the Galveston Daily News Reader's Choice Best Pediatrician of Galveston County in 2015, 2016, 2017, and 2019. Dr. Hay is currently a member of the Galveston Independent School District Board of Trustees, currently serving in his third three-year term, as well as serving as the President for six of those years. He served on the Texas Youth Commission Advisory Board after being appointed by then Texas Governor Rick Perry. He has developed a special interest in children with Attention Deficit Hyperactivity Disorder and other behavioral or school-related problems.

When he isn't seeing patients, Dr. Hay coaches the Texas A&M Galveston Lady Aggies soccer team.

 Provider is LGBTQIA+ Responsive

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Clinical Areas of interest in pediatric medicine, adult medicine, geriatric medicine, prevention medicine, health maintenance and special interest in women’s health. I aim to provide personal, comprehensive, and continuing care for the entire family.

I enjoy spending quality time with friends and family, reading, traveling and Pilates class.

Beverly Pennington completed her Bachelor of Science in Nursing, Master of Science Family Nurse Practitioner and Doctor of Nursing Practice at The University of Texas Medical Branch in Galveston, TX. A few years later, she came back to UTMB to join the Geriatric Division as the Geriatric Nurse Practitioner serving the Galveston community. Beverly is an active member of Sigma Theta Tau which recognize superior achievements and developing leadership qualities. She is also an active member of organizations such as American Association of Nurse Practitioners, Hospice and Palliative Care Association, Texas Nurse Practitioners, and Texas Doctor of Nursing Practice.

Dr. Silva serves as the Clerkship Director and Co-director of the Ambulatory Pediatric Community Selective. She received her MD from St. George's University School of Medicine, Grenada and completed her residency at Pennsylvania State University Children's Hospital. Dr. Silva is board certified in pediatrics.