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Our Team
Our Plastics Surgery Team is passionate about providing our patients the highest quality care for function, quality of life, and long term outcomes. All of our surgeons are fellowship trained and utilize a multidisciplinary team approach to treat the unique challenges presented by certain conditions that require plastic surgery.
Chief, Plastic Surgery
Dr. Buchanan is a 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 South… read more
Phone: 832-822-3180 (Clinic) | 832-822-2778 (Scheduling)
Plastic and Reconstructive Surgeons
Dr. Larry H. Hollier, Jr. is a board-certified plastic surgeon who specializes in plastic and reconstructive surgery. He is a Professor of Plastic Surgery, Orthopedic Surgery and Pediatrics. He serves as the Baron Hardy Chair of Plastic Surgery and as the Surgeon in Chief and Chair of the… read more
Phone: 832-822-3180 (Clinic) | 832-822-2778 (Scheduling)
Dr. Buchanan is a 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 South… read more
Phone: 832-822-3180 (Clinic) | 832-822-2778 (Scheduling)
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… read more
Phone: 832-822-3180 (Clinic) | 832-822-2778 (Scheduling)
Renata Maricevich, MD, FACS, FAAP 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… read more
Phone: 832-822-3180 (Clinic) | 832-822-2778 (Scheduling)
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… read more
Phone: 832-822-3180 (Clinic) | 832-822-2778 (Scheduling)
Dr. Nguyen received her undergraduate degree at Baylor University before attaining her medical degree at Texas Tech University Health Sciences Center. She then completed a 6-year integrated plastic surgery residency through Spectrum Health in Grand Rapids, Michigan. After residency, she completed a… read more
Phone: 832-822-3180 (Main Clinic) | 832-227-4263 (West) | 936-267-7100 (Woodlands) | 832-822-2778 (Scheduling)
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… read more
Phone: 936-267-7100 (Woodlands) | 832-822-2778 (Scheduling)
Dr. Pederson received his medical degree from Southwestern Medical School in Dallas, Texas. He completed his general surgery residency at the University of Texas Health Science Center at San Antonio, and his Plastic Surgery residency at Duke University Medical Center in Durham, North Carolina. He… read more
Phone: 832-822-3180 (Clinic) | 832-822-2778 (Scheduling)
Dr. Sandvall specializes in pediatric hand and reconstructive microsurgery. Her clinical interests include congenital and acquired hand and upper extremity differences, brachial plexus birth injuries, extremity reconstruction after trauma, oncologic reconstruction for bone and soft tissue tumors,… read more
Phone: 832-822-3180 (Main) | 832-227-4263 (West) | 713-839-0164 (Bellaire) | 281-469-4688 (Cy-Fair)
Every child is unique, and deserves individualized care in a collaborative and multidisciplinary environment. I am committed to working closely with families to achieve our mission of offering patient-centered care of the highest quality. It is a true honor to contribute to the medical need of… read more
Phone: 832-822-3180 (Clinic) | 832-822-2778 (Scheduling)
Craniofacial Orthodontists
Dr. John Wirthlin, DDS, MSD, is the full time craniofacial orthodontist on the cleft and craniofacial team at Texas Children's Hospital. Dr. Wirthlin received his orthodontic training at the University of Texas Health Science Center at Houston and his craniofacial orthodontic training at New York… read more
Phone: 832-822-3920
Dr. Ryan J. Cody, DDS, MSD, is a craniofacial orthodontist on the cleft and craniofacial team at Texas Children's Hospital. Dr. Cody received his dental training at University of North Carolina’s School of Dentistry and his orthodontic training at The University of Texas Health Science Center at… read more
Oral Surgeons
Following my training, the philosophy I’ve adopted as a physician is to ensure each patient feels they are the only patient I have that day. The ability to provide care to the most challenging cases is why I chose to practice in an academic healthcare center.
Clinical Interests:
Dental Implants… read more
Phone: 832-822-3200
I enjoy supporting patients throughout their oral surgery journey and remain available to my patients after treatment. As a careful listener and compassionate provider, I truly care about every patient’s well-being.
Clinical Interests:
Removal of wisdom teeth
Orthognathic surgery
Dental… read more
Phone: 832-822-3200
Physician Assistants
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… read more
Phone: 832-822-3180
Ryan is the Chief of the Wound Care Center – 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 Chemistry, graduating cum laude. Subsequently, he received his Master’s degree in Physician Assistant Studies from the… read more
Phone: 832-822-3135
Kris Marsack, MS, PA-C received her undergraduate degree in anthropology from the University of Notre Dame, a Master of Science degree in biology from Purdue University and a Master of Science degree in physician assistant studies from Baylor College of Medicine. She began her surgical career as a … read more
Phone: 832-822-3180
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… read more
Phone: 832-822-3180
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 in… read more
Phone: 832-822-3180
Jessica S. Tung, JD, MMS, 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… read more
Phone: 832-822-3180
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… read more
Phone: 832-822-3180
Patient Care Manager
I find that being compassionate, trustworthy and having accountability is what makes a great nurse, I strive every day to deliver the best care possible to my patients, I want them to know that they have someone that they can trust, that will be their advocate and someone they can depend on in… read more
Phone: 832-822-3180
Nurse Coordinators
My philosophy of care is to stay true. Staying true to my values and ethics, staying true to the patients and families and staying true to my co-workers. Part of staying true means that it is important to see the patient as a whole being and to provide competent, empathetic and compassionate care… read more
Phone: 832-822-3800 | 832-822-2011
Nurse Practitioner
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… read more
Phone: 832-822-3566
Practice Administrator
Mary Kana, MBA
Phone: 832-822-3493