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Our Providers & Staff

Dr. William Vandiver

Medical Director

MD, Fellow of the American Academy of Orthopaedic Surgeons

Dr. William Vandiver is a highly experienced, fellowship-trained orthopaedic surgeon specializing in joint replacement and orthopaedic sports medicine. He earned his medical degree from the Michigan State University College of Human Medicine, followed by a general surgery internship at Hurley Medical Center and residency training at the Bronx-Lebanon Hospital Center. He completed his specialized fellowship training in orthopaedic sports medicine at Hutzel Hospital through the Detroit Medical Center. A fluent Spanish speaker, Dr. Vandiver has served as Chief of Surgery for Texas Health Presbyterian Hospital Kaufman and brings decades of surgical expertise to his patient care.

Theodoor "Tiaan" Hancke

Founder

CRNA, APRN, NSPM-C

Theodoor "Tiaan" Hancke is an advanced practice registered nurse and certified registered nurse anesthetist specializing in comprehensive pain management therapy. He holds a sub-specialty certification in Non-Surgical Pain Management (NSPM-C), reflecting his advanced skill set in delivering targeted interventional pain relief treatments. Highly regarded by patients for his warm bedside manner and clinical thoroughness, Hancke provides advanced diagnostic and therapeutic pain care to help individuals reclaim their functionality and quality of life.

Dr. James Stanley

Orthopedic Surgeon | Spine Specialist

MD, American Board of Orthopaedic Surgery

Dr. James Stanley is a board-certified orthopedic surgeon and fellowship-trained spine surgeon specializing in the multi-disciplinary treatment of cervical, thoracic, and lumbar spine disorders. He earned his bachelor's degree from the University of Texas at Austin and his medical degree from the UT Southwestern Medical School. He completed his residency at the University of Oklahoma—where he provided on-field medical care for the Sooners athletic programs—and a specialized spine fellowship at Brown University. Dr. Stanley's clinical focus spans minimally invasive spine surgery, disc replacement, trauma, and adult spinal deformities.

Dr. Matthew Glick

DO, Board Certified by the American Board of Family Medicine

Dr. Matthew Glick is a board-certified family medicine physician with over 25 years of dedicated clinical experience. He earned his Doctor of Osteopathic Medicine (DO) degree from the University of North Texas Health Science Center in 1997 and completed his family medicine residency at St. Anthony Hospital in 2000. Affiliated with Texas Health Presbyterian Hospital Kaufman, Dr. Glick provides comprehensive primary care for patients of all ages, specializing in preventative medicine, immunization management, and chronic disease care.

Hannah Dehnert

Nurse Practitioner

MSN, APRN-BC

Hannah Dehnert is an enthusiastic, patient-centered advanced practice registered nurse (APRN) specializing in regenerative therapies and advanced pain management. She holds a Bachelor of Science and a Master of Science in Nursing from Texas Woman’s University. Dehnert’s clinical background includes extensive experience in perioperative care, patient advocacy, and tailored wellness treatments. She works closely with multidisciplinary teams to provide individualized care plans, regenerative wellness solutions, and essential patient education.

Isela Woolverton

Healthcare Compliance Officer | Director of Authorizations

Isela Woolverton serves as the Healthcare Compliance Officer and Director of Authorizations, ensuring seamless administrative and legal adherence in high-complexity clinical environments. A proud veteran, Woolverton spent four years serving as a Yeoman Petty Officer Third Class and Administrative Officer in the United States Navy. Following her military service, she transitioned into healthcare administration, bringing her exceptional background in leadership, meticulous documentation, and operational excellence to manage medical compliance and navigate the intricacies of insurance authorizations.

Katlin McFerrin

Medical Reviewer

BSN, RN

Katlin McFerrin is a versatile Registered Nurse with extensive experience in maternal-newborn care, aesthetic nursing, and clinical staff education. Highly regarded for her compassionate bedside manner and collaborative leadership, she has a proven track record in onboarding new nursing staff, driving process improvements, and creating individualized patient care plans across Texas healthcare settings. Whether mentoring fellow nurses or providing advanced clinical care, Katlin remains deeply committed to professional excellence, safety, and patient satisfaction.

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Quality Care
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Experienced Team
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Comprehensive Services
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Commitment to Excellence