IBD Center Providers

The Scott & White IBD Center provider team consists of gastroenterologists, surgeons and dieticians who collaborate with other specialists — such as interventional radiologists, hematologists, dermatologists, obstetricians and rheumatologists   to create a personalized treatment plan tailored for you.

Gastroenterology Team

We recognize that IBD can be complicated. Your team of IBD providers understand IBD and its possible complications. We partner with you to determine the best treatment plan.

Image of Dr. Timothy Pfanner

Dr. Timothy Pfanner

Image of Dr. Harry Thomas

Dr. Harry Thomas

Image of Dr. Apurva Trivedi

Dr. Apurva Trivedi


Surgical Team

Our surgeons are leaders in minimal invasive surgery procedures such as single incision laparoscopic (SILS), robot-assisted, sphincter preserving surgery, J-Pouch, and latest technologies to surgically treat IBD disease including Crohn’s and Ulcerative Colitis. While surgery may frequently be required in the management of IBD, knowing when to avoid an operation is also critical and cannot be overlooked.

Our team consists of colorectal surgeons and Katherine Hughes, RN, FNP, who is additionally trained in ostomy teaching, care and needs. We take a team approach for your care to ensure the best possible outcome.

Image of Dr. Harry Papaconstantinou

Dr. Harry Papaconstantinou
Colorectal Surgeon

Image of Dr. J. Scott Thomas

Dr. J. Scott Thomas
Colorectal Surgeon

Image of Dr. Rahila Essani

Dr. Rahila Essani
Colorectal Surgeon

Image of Dr. Rajalakshmi Warrier

Rajalakshmi Nair Warrier, MD
Colorectal Surgeon


Nurse Clinician Team

  • Kristin Collins, RN, BSN
  • Julia Turner, RN

Dietician Team

Malnutrition among individuals with IBD is very common. Therapeutic treatment and nutritional counseling is vital in managing malnutrition and to achieve optimum health and recovery.

  • Talitha Thompkins, RN
  • Dawn Ray, RD, LD, M. Ag


Working for you to ensure you receive the best possible assistance and care which includes assisting with insurance approvals and specialty medication orders.

If you are prescribed Remicade, Humira, Cimzia, Entyvio, Tysabri, Simponi or Stelara, we work with your insurance company for authorizations and pharmacy information so we can order the specialty drug for you. These medications are costly. If you need assistance, we can help you with an assistance application. We do our best to ensure you receive the lowest price possible. When all approvals are in place, we will schedule your delivery of Humira or Cimzia. Additionally, we will order your Remicade and schedule your infusion at one of our infusion locations that is most convenient for you: Scott & White Center for Diagnostic Medicine, Scott & White Vasicek Cancer Treatment Center, Scott & White Clinic - Round Rock 302 University, Scott & White Cancer Center - Killeen, Scott & White Clinic - Waco or Scott & White Clinic - University Drive.

  • Patsy Taylor
    Administrative assistant
  • Amelia Wier
    Patient service specialist

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