Our Team

Chief, Wound Care

Ryan is the Chief of the Wound Care Center and the Program Director of the Texas Children’s Hospital Pediatric Surgery Physician Assistant Fellowship program – the first program of its kind in the country. Ryan graduated from the University of South Alabama in 1999 with a B.S. in Biology and…
Phone: 832-822-3135

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Associate Chief, Wound Care

Shannon McCord is the Associate Chief of the Wound Care Clinic and Director of Patient Care Services at Texas Children's Hospital West Campus. She has more than 25 years of pediatric nursing experience and is approaching her 20th year at Texas Children’s Hospital. A board certified Pediatric Nurse…

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Clinic Physicians

Dr. Buchanan is an associate professor of surgery in the plastic surgery division of the Michael E. DeBakey Department of Surgery at Baylor College of Medicine. He specializes in pediatric plastic surgery and craniofacial surgery. Dr. Buchanan earned his medical degree from Medical University of…
Phone: 832-822-3180

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Dr. Dempsey considers it a privilege to practice at Texas Children's Hospital, where he trained, as part of the multidisciplinary cleft and craniofacial surgical teams. He is board certified with the American Board of Plastic Surgery. Our talented team members allow us to provide not only…
Phone: 832-822-3180

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As a father to two children, I strive to provide high quality care and empathy to patients. It was not too long ago that my own child was sick and required an extended stay at Texas Children’s Hospital. Since then, I have always wanted to be the type of physician that parents could put their trust…
Phone: 832-822-3180

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Renata Maricevich, M.D.  was born and raised in Recife, Brazil, where she received her Medical Degree from the Universidade Federal de Pernambuco. She moved to the United States to pursue training and completed General Surgery and Plastic Surgery residencies at the Mayo Clinic in Rochester, MN,…
Phone: 832-822-3180

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Dr. Monson completed her residency in Plastic & Reconstructive Surgery at the University of Michigan in Ann Arbor, Michigan and her fellowship training at Children's Hospital of Pittsburgh. There she received further dedicated training in pediatric plastic and craniofacial surgery, including…
Phone: 832-822-3180

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Dr. Olorunnipa received his undergraduate degree at Harvard University before obtaining his medical degree at Stanford University School of Medicine. He then entered the combined Plastic Surgery Residency at New York Presbyterian/Columbia and New York Presbyterian/ Weill Cornell Medical Centers in…
Phone: 936-267-7100

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Advanced Practice Providers

Lesley W. Davies, MPAS, PA-C is a physician assistant in Department of Pediatric Plastic and Reconstructive Surgery at Texas Children’s Hospital. She is one of several Advanced Practice Providers helping to meet the demands of a high-volume service and her responsibilities include seeing patients…
Phone: 832-822-3180 (Main) | 832-822-3180 (Direct Line)

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Diana E. Guillen, MPAS, PA-C, is a physician assistant in the Department of Pediatric Plastic and Reconstructive Surgery at Texas Children’s Hospital. She began her surgical career in 2008 and was previously trained with Plastic Surgeons at the Institute of Reconstructive Plastic Surgery at the…
Phone: 832-822-3180

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Athena D. Krasnosky MSN, ARNP, CPNP is a Pediatric Nurse Practitioner in the Department of Plastic Surgery at Texas Children’s Hospital.  She is the Primary Care Provider for the Cleft and Craniofacial Multidisciplinary Team.  She has a special interest in the growth and development of her patients…
Phone: 832-822-3566

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Ryan is the Chief of the Wound Care Center and the Program Director of the Texas Children’s Hospital Pediatric Surgery Physician Assistant Fellowship program – the first program of its kind in the country. Ryan graduated from the University of South Alabama in 1999 with a B.S. in Biology and…
Phone: 832-822-3135

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Mervin (Reggie) Nunez, MMS, PA-C is a physician assistant in Department of Pediatric Plastic Surgery at Texas Children’s Hospital.  He began his career in 2006 in Critical Care working in the pediatric ICU at TCH. He joined the Pediatric Plastic Surgery team in 2013 where his responsibilities…
Phone: 832-822-3180

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Michelle G. Roy, MPAP, PA-C is a physician assistant in Department of Pediatric Plastic and Reconstructive Surgery at Texas Children’s Hospital.  She is one of several Advanced Practice Providers helping to meet the demands of a high-volume service and her responsibilities include seeing patients…
Phone: 832-822-3180

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Jeromie Sequitin is a Physician Assistant in the Department of Pediatric Plastic Surgery at Texas Children’s Hospital. He began his career in 2016 here at Texas Children’s Hospital after attending the University of St. Francis Physician Assistant Program in Albuquerque, New Mexico. He is one of…
Phone: 832-822-3180

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Jessica S. Tung, JD, MMS, PA-C is a physician assistant in Department of Pediatric Plastic and Reconstructive Surgery at Texas Children’s Hospital in the Woodlands.  She is one of several Advanced Practice Providers helping to meet the demands of a high-volume service and her responsibilities…
Phone: 936-267-7100 (Woodlands) | 832-822-3180 (Main)

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Lindsey E. White, MPAS, PA-C is a physician assistant in Department of Pediatric Plastic and Reconstructive Surgery at Texas Children’s Hospital.  She is one of several Advanced Practice Providers helping to meet the demands of a high-volume service and her responsibilities include seeing patients…
Phone: 832-822-3180

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