University of Arkansas for Medical Sciences Logo University of Arkansas for Medical Sciences
Department of Surgery: Brain Injury Program

Meet the Team

Olivia Wilson, MS, CHES
Olivia Wilson, MS, CHES
Project Director
Phone: 501-603-1029
Email: OWilson2@uams.edu
Michaela (Mikki) Kollisch, M.D.
Michaela (Mikki) Kollisch, M.D.
Associate Professor
Robert Vandewalle, M.D., M.B.A.
Robert Vandewalle, M.D., M.B.A.
Program Director
Email: RVandewalle@uams.edu
Aaron Patel, M.D.
Aaron Patel, M.D.

Medical School: Medical College of Georgia at Augusta University
Residency: University of Miami Miller School of Medicine

Nolan Bruce, M.D.
Nolan Bruce, M.D., FACS
Program Director
Phone: 501-686-5205
Email: NBruce@uams.edu
Jacob Campbell
Jacob Campbell, M.D.

Medical School: Louisiana State University School of Medicine in Shreveport

Muhammad Javed
Muhammad Jawad Javed, MBBS

Medical School: Fatima Memorial Hospital College of Medicine and Dentistry

Alex Gilman
Alex Gilman, M.D.

Medical School: Wright State University Medical School

Kelsey Brady, APRN
Kelsey Brady, APRN
Luke Bathurst
Luke Bathurst, D.O.

Medical School: Lincoln Memorial University – DeBusk College of Osteopathic Medicine

Gina Sacks, M.D.
Gina Sacks, M.D.
Assistant Professor
Theresa Mccallie
Theresa McCallie, M.D.
Jamie Cannon, M.D.
Jamie Cannon, M.D.
Professor
Gracie Cape
Gracie Cape, M.D.

Medical School: UAMS

Brianna Harvey
Brianna Harvey, M.D.

Medical School: Indiana University School of Medicine

John Montgomery, M.D.
John Montgomery, M.D.
Assistant Professor
Tsukasa Nakamura, M.D.
Tsukasa Nakamura, M.D., Ph.D.
Assistant Professor
Savannah Miller
Savannah Miller, M.D.

Medical School: University of Missouri- Kansas City School of Medicine

Jonathan Peterson
Jonathan Peterson, M.D.

Medical School: UAMS

Nick Callais
Nick Callais

Medical School: LSU-Shreveport

Nicole Villafane
Nicole Villafane
Gianna Fernandez
Gianna Fernandez, M.D.

Medical School: Indiana University

Delanie Mack
Delanie Mack, M.D.

Medical school: UAMS

Karen J. Dickinson, MBBS, M.D., B.Sc., M.Ed., CHSE-A, FRCS
Associate Professor
Director of IPE Simulation and Clinical Skills Training
Liam O'Brien
Liam O’Brien, M.D.

Medical School: University of Utah

Marie Burdine, Ph.D.
Associate Professor
Director of the Division of Surgical Research
Carol Thrush, Ed.D.
Carol Thrush, Ed.D.
Professor
GME Director of Institutional Education, Innovation and Scholarship
Julia Scott
Julia Scott, D.O.

Touro University Nevada College of Osteopathic Medicine

Hannah Jensen, M.D., Ph.D.
Hanna Jensen, M.D., Ph.D.
Associate Professor
Associate Director of Clinical Research Trauma Team
Venkat Ramana Kalapatapu
Venkat Kalapatapu, M.D.
Chief, Division of Vascular Surgery
Sandra Garcia Osogobio
Sandra M. Garcia Osogobio, M.D., M.S.
Assistant Professor
Taufiek Konrad Rajab
Taufiek Konrad Rajab, M.D.
Associate Professor
Richard Betzold, M.D.
Associate Professor
Sudhail Zeineddin, M.D.
Sudhail Zeineddin, M.D.

2025-2027

Lexie Vaughn, M.D.
Lexie Vaughn, M.D.
Assistant Professor
Derek Krinock, M.D.
Derek Krinock, M.D.

2026-2028

Hillary Mayberry, PA
Hillary M. Mayberry, MPAS, PA-C
Horeb Cano
Horeb Cano, M.D.
Melissa eckes
Melissa Eckes, M.D.
Fellow
Victoria Patton, M.D.
Olivia Hopper, M.D.
Fellow
shaddy malik
Shaddy Malik, M.D.

Medical School: UC San Diego School of Medicine

John Adams
John David Adams, M.D.
Kaylie Behlmann
Kaylie Behlmann, M.D.
Jodie Borgmann
Jodie Borgmann, M.D.
Alejandro Bustamante
Alejandro Bustamante, M.D.
Andreas Christy
Andreas Christy, D.O.
Christi Burke, APRN
Christi Burke, APRN
Dierra Cohen
Dierra Cohen, M.D.
Katherine Connelley
Katherine Connelley, M.D.
Mary Selanders-Crawford, PA-C
Mary Selanders, MPAS, PA-C
Madeline Nachtigal
Madeline Nachtigal, D.O.
Pranav Patel
Pranav Patel, M.D.
Nangah Tabukum
Nangah Tabukum, M.D.
Wesley Tyson
Wesley Tyson, M.D.
Tyler Rives, M.D.
Tyler Rives, M.D.
Assistant Professor
Parker Weiss
Parker Weiss, D.O.
Deidre Wyrick, M.D., FA
Deidre Wyrick, M.D., FACS
Assistant Program Director
Email: DLWyrick2@uams.edu
Professional headshot of smiling woman with long blonde hair wearing striped blouse with bow tie against blue gradient background
Coral Robison, PT, DPT
Director of Operations
Email: CRobison@uams.edu
Sarah Martin, M.D.
Sarah Martin, M.D.

Fellowship Year: 2024-25

Carol Ann Crowley
Program Coordinator
Phone: 501-686-6627
Email: massanellicarola@uams.edu
Jill Hare
Jill Hare
GME Program Coordinator
Email: jmhare@uams.edu
Ann Hutchison, M.D.
Ann Hutchison, M.D.

Fellowship Year: 2023-24

Current Practice: Surgical Specialists, Newton Medical Center, Newton, KS

Current Position: General/Acute Care/Critical Care Surgeon

Matthew Steliga, M.D.
Matthew Steliga, M.D.
Executive Vice-Chair in the Department of Surgery
Eddie Williams
Eddie Williams, BSN, RN, CBIS
Assistant Director
Phone: 501-231-2880
Email: EWilliams7@uams.edu
Sheila Beck
Sheila Beck, MSPT, CBIST
Clinic Operations Coordinator
Phone: 501-425-4487
Email: SBeck@uams.edu
Rick Yeager, M.D.
Richard Yeager, M.D.

Fellowship Year: 2021-22

Current Practice: Arkansas Children’s Hospital, Little Rock, AR

Current Position: Assistant Professor, Division of Burn Surgery

Leigh Anna Robinson, M.D.
Leigh Anna Robinson, M.D.

Fellowship Year: 2020-21

Current Practice: Jefferson Regional Medical Center, Pine Bluff, AR

Current Position: General/ACS/Surgical Critical Care Practice

Gayla Caldwell
Gayla Caldwell, BS
Project Manager
Phone: 501-442-5602
Email: GCaldwell@uams.edu
Dianne Campbell
Dianne Campbell, LCSW, CBIS
Social Worker/Care Coordinator
Phone: 501-612-4982
Email: DCampbell4@uams.edu
Matthew L. Roberts, M.D.
Matthew Roberts, M.D.

Fellowship Year: 2019-20

Current Practice: University of Arkansas for Medical Sciences, Little Rock, AR

Current Position: Assistant Professor, Division of Acute Care Surgery

Brandi Dawson
Brandi Dawson, MS
Health Educator
Phone: 501-541-4412
Email: BDawson@uams.edu
Anna Privratsky, D.O.
Anna Privratsky, D.O.

Fellowship Year: 2018-19

Current Practice: University of Arkansas for Medical Sciences, Little Rock, AR

Current Position: Assistant Professor, Division of Acute Care Surgery

Jonelle Tindall
Jonelle Tindall, BS
Administrative Coordinator
Phone: 501-526-7656
Email: JTindall2@uams.edu
Chad Cragle, M.D., Ph.D.
Chad E. Cragle, M.D., Ph.D.
Assistant Professor
Alex Otwell
Alex Otwell, M.D.

Medical School: UAMS

Professional headshot of smiling woman with dark hair wearing black blazer and white shirt against blue and teal gradient background.
Constance Tullis, LMSW
Social Worker; Peer Support Lead
Phone: 501-274-8051
Email: CTullis@uams.edu
Amber Watson
Amber Watson, MBA, CBIS
Program Manager
Phone: 501-526-7656
Email: AWatson@uams.edu
Dr. Andre R. Ramdon
Andre R. Ramdon, M.D.
Associate Professor
Anna Morris
Anna Morris, M.D.

Medical School: LSU-Shreveport

Brian Langford, M.D.
Brian Langford, M.D.
Assistant Professor
Charles Shirley
Charles Shirley, M.D.

Medical School: Tulane University

Dr. David A. Sterling
David A. Sterling, M.D.
Assistant Professor
Email: DSterling@uams.edu
Jennifer McElroy, APRN
Jennifer A. McElroy, APRN
Jonathan Laryea, M.D.
Jonathan Laryea, M.D.
Chief of the Division of Colon & Rectal Surgery
Phone: 501-686-6757
Email: jalaryea@uams.edu
Karen Crowell, M.D.
Karen Crowell, M.D.
Consultant - Physician Educator
Phone: 501-526-5260
Email: kcrowell@uams.edu
Markell Foreman
Markell Foreman, Sr., B.S., B.A.
Senior Research Assistant
Phone: 501-526-7935
Email: mforemansr@uams.edu
Nathan Redding
Nathan Redding, M.D.

Medical School: UAMS

Dr. S. Thomas Kang
S. Thomas Kang, M.D.
Assistant Professor
Sam Byrd
Sam Byrd, M.D.

Medical School: UAMS

Zach McConnell
Zach McConnell, M.D.

Medical School: UAMS

Hailey Hardgrave
Hailey Hardgrave, M.D.
Medical School: UAMS
Camazine
Maraya Camazine, M.D.
Medical School: University of Missouri – Columbia
Nick Callais
Nick Callais, M.D.
Medical School: LSU Shreveport
Raveena Patel
Raveena Patel, M.D.
Medical School: University of Texas Medical Branch – Galveston
Tyler Rose
Tyler Rose, M.D.
Medical School: UAMS
Ronda Henry-Tillman
Ronda Henry-Tillman, M.D., FACS
Chief of the Division of Breast Surgery
Phone: 501-686-6503
Email: HenryRondaS@uams.edu
Dr. Valandra Oliver
Valandra German, Dr.P.H., M.P.H.
Co-Director
Phone: 501-526-7101
Email: vloliver@uams.edu
Dr. Pebbles Fagan
Pebbles Fagan, Ph.D., MPH
Director of Research
Phone: 501-526-2294
Email: pfagan@uams.edu
Simona Dobos
Simona Dobos, MCMSc, PA-C
Madeline Hargis, PA
Madeline Hargis, MPAS, PA-C
Samantha Snavely, PA-C
Samantha Snavely, MPAS, PA-C
Ronald Robertson, M.D.
Ronald Robertson, M.D.
Dean of the College of Medicine
Gary W. Barone, M.D.
Gary W. Barone, M.D.
Professor, Division Chief
Nolan Bruce, M.D.
Nolan Bruce, M.D.
Associate Professor
Surgical Critical Care Fellowship Program Director
Medical Director, Surgical Intensive Care Unit
Lyle J. Burdine, M.D., Ph.D.
Lyle J. Burdine, M.D., Ph.D.
Interim Chair of the Department of Surgery
Jeffrey Burford, M.D.
Jeffrey Burford, M.D.
Associate Professor
Sid Dassinger, M.D.
Sidney Dassinger, M.D.
Executive Vice-Chair in the Department of Surgery
Ben Davis, M.D.
Ben Davis, M.D.
Associate Professor, Division Director of Trauma
Martha Estrada, M.D.
Martha Estrada, M.D.
Assistant Professor
Lawrence Greiten
Lawrence E. Greiten, M.D., M.Sc.
Associate Professor
Oleksiy Gudz, M.D., Ph.D.
Oleksiy Gudz, M.D., Ph.D.
Assistant Professor
Ronda Henry-Tillman
Ronda Henry-Tillman, M.D.
Professor, Chief of the Division of Breast Surgery

Chief of Breast Oncology

Richard Jackson, M.D.
Richard Jackson, M.D.
Professor
Kyle Kalkwarf, M.D.
Kyle Kalkwarf, M.D.
Associate Professor, Director of the UAMS Trauma Program
Mary Katherine Kimbrough, M.D.
Katie Kimbrough, M.D.
Professor
Melissa Kost, M.D
Melissa Kost, M.D., FACS
Associate Professor
Program Director, General Surgery Residency Program
Email: mrkost@uams.edu
Jonathan Laryea, M.D.
Jonathan A Laryea, M.D.
Professor
Joseph Margolick, M.D.
Joseph Margolick, M.D.
Associate Professor
Katy Marino, M.D.
Katy Marino, M.D.
Associate Professor
Todd Maxson, M.D.
Todd Maxson, M.D.
Professor
Robert J. Vandewalle, M.D., M.B.A.
Robert J. Vandewalle, M.D., M.B.A.
Assistant Professor
James Yuen, M.D.
James C. Yuen, M.D.
Professor and Division Chief of Plastic and Reconstructive Surgery
Email: YuenJamesC@uams.edu
Sagar Mehta, M.D.
Sagar T. Mehta, M.D.
Associate Professor
Email: STMehta@uams.edu
Jason Muesse, M.D.
Jason Muesse, M.D.
Associate Professor
Daniela Ochoa, M.D.
Daniela A. Ochoa, M.D.
Professor
Sonia Orcutt, M.D.
Sonia Orcutt, M.D.
Associate Professor
Anna Privratsky, D.O.
Anna Privratsky, D.O.
Associate Professor
Junior Clerkship Director

Fellowship Year: 2018-19

Current Practice: University of Arkansas for Medical Sciences, Little Rock, AR

Current Position: Assistant Professor, Division of Acute Care Surgery

Brian Reemtsen, M.D.
Brian Reemtsen, M.D.
Professor
Director of the Heart Center at Arkansas Children’s Hospital
Matthew L. Roberts, M.D.
Matthew L. Roberts, M.D.
Associate Professor

Fellowship Year: 2019-20

Current Practice: University of Arkansas for Medical Sciences, Little Rock, AR

Current Position: Assistant Professor, Division of Acute Care Surgery

Esther Teo, M.D.
Esther Teo, M.D.
Associate Professor
Dr. Nicholas D. Tingquist
Nicholas D. Tingquist, M.D.
Assistant Professor
Rick Yeager, M.D.
Richard Mark Yeager, M.D.
Assistant Professor

Fellowship Year: 2021-22

Current Practice: Arkansas Children’s Hospital, Little Rock, AR

Current Position: Assistant Professor, Division of Burn Surgery

Kent Westbrook, M.D.
Kent C. Westbrook, M.D.
Distinguished Professor
Lindsey Wolf, M.D., MPH
Lindsey Wolf, M.D., MPH
Associate Professor
Keith Wolter, M.D., Ph.D.
Keith Wolter, M.D., Ph.D.
Associate Professor
Email: KGWolter@uams.edu
Deidre Wyrick, M.D.
Deidre Wyrick, M.D.
Associate Professor
Martha Conley Ingram, M.D.
Martha-Conley Ingram, M.D.

2023-2025

Gregory Keefe, M.D.
Greg Keefe, M.D.