Our Services

Our Team

Meet Our Team of Physicians:




Dr. Tay Sha Howell, MD
Medical Director of the Oklahoma Wound Center and the Diabetic Limb Salvage Program

Dr. Howell is trained in wound care and hyperbaric oxygen therapy and has been practicing wound care since 2006. She has served as the Wound Care Medical Director for Norman Regional Health System since 2008, covering the Oklahoma Wound Center and the inpatient wound program including the Diabetic Limb Salvage Program. Dr. Howell is also the Wound Care Medical Director for Norman Specialty Hospital. She is the co-founder and chapter leader of the Oklahoma Metro Chapter of Save a Leg, Save a Life. This non-profit organization is dedicated to decreasing amputation rates.



Dr. Rebecca Bloom, MD
Dr. Bloom began practicing wound care in Tulsa in 2012. She is wound care and hyperbaric oxygen therapy trained. She serves as the medical director for Pryor Wound Center. She continues to work in emergency medicine part-time.



Dr. Gerry Palmer Holland, DO
Dr. Holland began her career practicing family medicine in Texas. She is trained in hyperbaric oxygen therapy and certified in wound care. She began her wound care practice in 2005 and has been practicing as a wound care specialist full time in Oklahoma since 2009.



Dr. Ester Elizabeth Walker, DO
Dr. Walker practiced emergency medicine for more than 35 years. She began her wound care practice in 2003 and is trained in both wound care and hyperbaric oxygen therapy. Dr. Walker is now a full-time wound care specialist

Meet Our Staff:




Serita Brame, Program Director
Serita Brame has served as the program director for the Oklahoma Wound Center since 2010. Previously, she was a program director for Wound Care and Hyperbaric Medicine at the Comanche County Memorial Hospital in Lawton, OK. She also currently serves as the community liaison for the Save a Leg, Save a Life Foundation.

Bill Mullen, RN, Inpatient Wound/Ostomy Specialist
Bill Mullen is a wound care nurse with more than 16 years of wound care experience. He has multiple certifications in wound care including ostomy care, VAC therapy, sharps debridement, and compression therapy. Bill is also a Certified Wound Specialist (CWS). Bill has worked at Norman Regional Health System since 1996.



Karen Ritchie, RN, Diabetic Limb Salvage Nurse Navigator
Karen Ritchie, RN, is Norman Regional Health System's Diabetic Limb Salvage (DLS) Nurse Navigator. Karen began her position in October 2013 and has become an integral member of the DLS program. She coordinates the treatment plan for patients suffering from a diabetic ulcer and serves as the key contact for patients, and is responsible for monitoring and guiding them through the recovery process. Karen provides emotional support and assurance of continuity of care for the patient and their family. She educates them on the healing process, ulcer prevention and how to live a healthy lifestyle. Karen also provides diabetic limb salvage education to Norman Regional Health System nurses and caregivers.

Karen has worked at the Oklahoma Wound Center for six years. She began her career at the Oklahoma Wound Center as a wound care technician before becoming a registered nurse. Prior to her position at Norman Regional, Karen worked as a home health aide for eleven years. She graduated from Oklahoma City Community College with a degree in nursing.

Karen is a member of the Save a Leg, Save a Life Foundation and the American Diabetes Association. She was awarded the Employee of the Year award from the Oklahoma Wound Center in 2012.



Arika Tate, RN, Clinical Nurse Manager
Arika Tate has been a registered nurse since 1999. She has worked at the Oklahoma Wound Center since 2010. Previously, she worked at Midwest Regional Medical Center Wound Care. Arika has also worked in both family and oncology practices



Jack G. Ames, HBO CHT Safety Director
Jack Ames is a certified Hyperbaric Technician and serves as the Safety Director of the Oklahoma Wound Center’s Hyperbaric Oxygen services.

Jack has worked at the Oklahoma Wound Center for the past five years and has worked with Healogics for the past 12 years. Before coming to Norman Regional’s Oklahoma Wound Center, Jack served as the Safety Director of Midwest City’s Wound Care Center.

Mr. Ames is also a retired Lieutenant from the Warr Acres Fire Department.