Our Physicians

TDDC Physicians, Providers and Researchers

Meet our doctors and their staff of providers - all here to help you!

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Physicians

Dr. M. Tarek Al-Assi

Dr. M. Tarek Al-Assi

Board Certified Gastroenterologist

Dr. Abrar Ahmed

Dr. Abrar Ahmed

Board Certified Gastroenterologist

​Dr. Hector D. Allende

​Dr. Hector D. Allende

Board Certified Gastroenterologist

Dr. Rafael Amaro

Dr. Rafael Amaro

Board Certified Gastroenterologist

​Dr. Julian Armstrong

​Dr. Julian Armstrong

Board Certified Gastroenterologist

Dr. Andrew Bolin

Dr. Andrew Bolin

Board Certified Gastroenterologist

​Dr. Ravi Botla

​Dr. Ravi Botla

Board Certified Gastroenterologist

Dr. Waldo P. Bracy

Dr. Waldo P. Bracy

Board Certified Gastroenterologist

Dr. Christie Choi

Dr. Christie Choi

Board Certified Gastroenterologist

Dr. John Cluley

Dr. John Cluley

Board Certified Gastroenterologist

Dr. Edward F. Coles

Dr. Edward F. Coles

Board Certified Gastroenterologist

Dr. Clifton Cox, MD

Dr. Clifton Cox, MD

Board Certified Colon and Rectal Surgeon

​Dr. James Cox

​Dr. James Cox

Board Certified Gastroenterologist

Dr. Kevin Dasher

Dr. Kevin Dasher

Board Certified Gastroenterologist

Dr. Mona Dave

Dr. Mona Dave

Board Certified Pediatric Gastroenterologist

Dr. Virat Dave

Dr. Virat Dave

Board Certified Gastroenterologist

Dr. Amit P. Desai

Dr. Amit P. Desai

Board Certified Gastroenterologist

Dr. William Kern Deschner

Dr. William Kern Deschner

Board Certified Gastroenterologist

​Dr. Thomas N. Dewar

​Dr. Thomas N. Dewar

Board Certified Gastroenterologist

Dr. Jason Edling

Dr. Jason Edling

Board Certified Gastroenterologist

Dr. Esmail Elwazir

Dr. Esmail Elwazir

Board Certified Gastroenterology

Dr. Tanya Evans

Dr. Tanya Evans

Board Certified Gastroenterologist

Dr. Osvaldo Fajardo

Dr. Osvaldo Fajardo

Board Certified Gastroenterologist

Dr. Greg Farrell

Dr. Greg Farrell

Board Certified Gastroenterologist

Dr. Neville Fernandes

Dr. Neville Fernandes

Board Certified Gastroenterologist

Dr. John T. Fletcher

Dr. John T. Fletcher

Board Certified Gastroenterologist

Dr. Joseph D. Fletcher

Dr. Joseph D. Fletcher

Board Certified Gastroenterologist

Dr. Chris Fourment

Dr. Chris Fourment

Director of Clinical Research & Education

Dr. Daniel Friedman

Dr. Daniel Friedman

Board Certified Gastroenterologist

Dr. Ravi Ganeshappa

Dr. Ravi Ganeshappa

Board Certified Gastroenterologist

Dr. Kim Gentry

Dr. Kim Gentry

Board Certified Gastroenterologist

Dr. Josh George

Dr. Josh George

Board Certified Gastroenterologist

Dr. Reem Ghalib

Dr. Reem Ghalib

Board Certified Gastroenterologist

Dr. Amit Goyal

Dr. Amit Goyal

Board Certified Gastroenterologist

Dr. Robert Guinan

Dr. Robert Guinan

Board Certified Gastroenterologist

Dr. Kumar Gutta

Dr. Kumar Gutta

Board Certified Gastroenterologist

Dr. Chase R. Herdman

Dr. Chase R. Herdman

Board Certified Gastroenterologist

Dr. W. Gregory Hodges

Dr. W. Gregory Hodges

Board Certified Gastroenterologist

Dr. Andrew Holt

Dr. Andrew Holt

Board Certified Gastroenterologist

Dr. Jody Houston

Dr. Jody Houston

Board Certified Gastroenterologist

Dr. Rajeev Jain

Dr. Rajeev Jain

Board Certified Gastroenterologist

Dr. Bijo K. John

Dr. Bijo K. John

Board Certified Gastroenterologist

Dr. Ben Kahn

Dr. Ben Kahn

Board Certified Gastroenterologist

Dr. Kalyan Kanneganti

Dr. Kalyan Kanneganti

Board Certified Gastroenterologist

Dr. Thomas Kepczyk

Dr. Thomas Kepczyk

Board Certified Gastroenterologist

Dr. Dustin Kiker

Dr. Dustin Kiker

Board Certified Gastroenterologist

Dr. Jeffrey Krieger

Dr. Jeffrey Krieger

Board Certified Gastroenterologist

Dr. Arthi Kumaravel

Dr. Arthi Kumaravel

Board Certified Gastroenterologist

​Dr. Stephen Lacey

​Dr. Stephen Lacey

Board Certified Gastroenterologist

Dr. Reema Lamba

Dr. Reema Lamba

Board Certified Gastroenterologist

Dr. Alexander Lee

Dr. Alexander Lee

Board Certified Gastroenterologist

Dr. David Levitan

Dr. David Levitan

Board Certified Gastroenterologist

​Dr. Carol E. Mallette

​Dr. Carol E. Mallette

Board Certified Gastroenterologist

Dr. Shannon J. Marek

Dr. Shannon J. Marek

Board Certified Gastroenterologist

Dr. Jason Martin

Dr. Jason Martin

Board Certified Gastroenterologist

​Dr. Juan Martinez

​Dr. Juan Martinez

Board Certified Gastroenterologist

Dr. Sony Mathews

Dr. Sony Mathews

Board Certified Gastroenterologist

Dr. Bryce Mays

Dr. Bryce Mays

Board Certified Gastroenterologist

Dr. S. Neil Mehta

Dr. S. Neil Mehta

Board Certified Gastroenterologist

Dr. Michael Mendelson

Dr. Michael Mendelson

Board Certified Gastroenterologist

Dr. Douglas Mills

Dr. Douglas Mills

Gastroenterologist

​Dr. Bhavani Moparty

​Dr. Bhavani Moparty

Board Certified Gastroenterologist

Dr. Dan Morton

Dr. Dan Morton

Board Certified Gastroenterologist

Dr. Susan Moster

Dr. Susan Moster

Board Certified Gastroenterologist

Dr. Nandini Nagaraj

Dr. Nandini Nagaraj

Board Certified Gastroenterologist

Dr. Suraj Naik

Dr. Suraj Naik

Board Certified Gastroenterologist

Dr. Sharad Nangia

Dr. Sharad Nangia

Board Certified Gastroenterologist

​Dr. Carlos A. Neghme

​Dr. Carlos A. Neghme

Board Certified Gastroenterologist

Dr. Michael Nunez

Dr. Michael Nunez

Board Certified Gastroenterologist

Dr. Suwebatu T. Odunsi-Shiyanbade

Dr. Suwebatu T. Odunsi-Shiyanbade

Board Certified Gastroenterologist

Dr. German Oliver

Dr. German Oliver

Board Certified Gastroenterologist

Dr. Charles Owen

Dr. Charles Owen

Board Certified Gastroenterologist

Dr. David Park

Dr. David Park

Board Certified Gastroenterologist

Dr. Nishant Patel

Dr. Nishant Patel

Board Certified Gastroenterologist

Dr. Rikin Patel

Dr. Rikin Patel

Board Certified Gastroenterologist

Dr. Steven Pearce

Dr. Steven Pearce

Board Certified Gastroenterologist

Dr. Kimberly Persley

Dr. Kimberly Persley

Board Certified Gastroenterologist

Dr. Jan Carlos Prazak

Dr. Jan Carlos Prazak

Board Certified Gastroenterologist

Dr. Rajesh Putcha

Dr. Rajesh Putcha

Board Certified Gastroenterologist

Dr. Zeeshan Qureshi

Dr. Zeeshan Qureshi

Board Certified Gastroenterologist

Dr. John Rabine

Dr. John Rabine

Board Certified Gastroenterologist

Dr. Christopher Ramos

Dr. Christopher Ramos

Board Certified Gastroenterologist

Dr. Zeeshan Ranzam

Dr. Zeeshan Ranzam

Board Certified Gastroenterologist

Dr. Gabriel Rendon

Dr. Gabriel Rendon

Board Certified Gastroenterologist

Dr. Timothy Ritter

Dr. Timothy Ritter

Board Certified Gastroenterologist

Dr. Allen Rubin

Dr. Allen Rubin

Board Certified Gastroenterologist

Dr. Syed Sadiq

Dr. Syed Sadiq

Board Certified Gastroenterologist

Dr. Troy Schmidt

Dr. Troy Schmidt

Board Certified Gastroenterologist

Dr. Fayez G. Seif

Dr. Fayez G. Seif

Board Certified Gastroenterologist

Dr. S. Mohsin Shah

Dr. S. Mohsin Shah

Board Certified Gastroenterologist

Dr. Joseph Shelton

Dr. Joseph Shelton

Board Certified Gastroenterologist

Dr. Junaid Siddiqui

Dr. Junaid Siddiqui

Board Certified Gastroenterologist

Dr. Jeffrey Smith

Dr. Jeffrey Smith

Board Certified Gastroenterologist

Dr. David Spady

Dr. David Spady

Board Certified Gastroenterologist

Dr. Jayaprakash Sreenarasimhaiah

Dr. Jayaprakash Sreenarasimhaiah

Board Certified Gastroenterologist

Dr. Ramesh Srinivasan

Dr. Ramesh Srinivasan

Board Certified Gastroenterologist

Dr. Anita Steephen

Dr. Anita Steephen

Board Certified Gastroenterologist

Dr. Karen Steffer

Dr. Karen Steffer

Board Certified Gastroenterologist

Dr. William E. Stevens

Dr. William E. Stevens

Board Certified Gastroenterologist

Dr. Kamal Syed

Dr. Kamal Syed

Board Certified Gastroenterologist

Dr. Aris Tsiakos

Dr. Aris Tsiakos

Board Certified Gastroenterologist

Dr. Raymond Vallera

Dr. Raymond Vallera

Board Certified Gastroenterologist

Dr. Grace Vanesko

Dr. Grace Vanesko

Board Certified Gastroenterologist

Dr. Christopher Vesy

Dr. Christopher Vesy

Board Certified Gastroenterologist

Dr. James Weber

Dr. James Weber

President and Chief Executive Officer, Board Certified Gastroenterologist

Dr. Steven Wilkofsky

Dr. Steven Wilkofsky

Board Certified Gastroenterologist

Dr. Paul Wright

Dr. Paul Wright

Board Certified Gastroenterologist

Dr. Kanthi Yalamanchili

Dr. Kanthi Yalamanchili

Board Certified Gastroenterologist

Dr. Kenneth Yang

Dr. Kenneth Yang

Board Certified Gastroenterologist

Dr. Glenn Young

Dr. Glenn Young

Board Certified Gastroenterologist

Pathologists

Dr. Donna J. Lager

Dr. Donna J. Lager

Board Certified Pathologist

Dr. Matthew Lewin

Dr. Matthew Lewin

Board Certified Pathologist

Dr. Craig Edward Litz

Dr. Craig Edward Litz

Board Certified Pathologist

Dr. Uyen Debbie Ly

Dr. Uyen Debbie Ly

Board Certified Pathologist

Dr. Ravi A. Patel

Dr. Ravi A. Patel

Board Certified Pathologist

Dr. Deepthi S. Rao

Dr. Deepthi S. Rao

Board Certified Pathologist

Dr. Cory A. Roberts

Dr. Cory A. Roberts

Board Certified Pathologist

Advanced Level Providers

Joyce Andrea, PA

Joyce Andrea, PA

Physician Assistant

Luisa Arellano, PA

Luisa Arellano, PA

Physician Assistant

Lauren Atwood, PA

Lauren Atwood, PA

Physician Assistant

Melissa Bachman, PA

Melissa Bachman, PA

Physician Assistant

​Lauren Braun, PA

​Lauren Braun, PA

Physician Assistant

Melinda (Lindi) Brockman, NP

Melinda (Lindi) Brockman, NP

Nurse Practitioner

Kristin Collins, PA

Kristin Collins, PA

Physician Assistant

Susan Deering, NP

Susan Deering, NP

Nurse Practitioner

Reena Doane, PA

Reena Doane, PA

Physician Assistant

Betsy Dodson, PA

Betsy Dodson, PA

Physician Assistant

Gena Ettinger, PA

Gena Ettinger, PA

Physician Assistant

Nancy Farrar, PA

Nancy Farrar, PA

Physician Assistant

Meghan Freed, NP

Meghan Freed, NP

Nurse Practitioner

​Dale Fuller, NP

​Dale Fuller, NP

Nurse Practitioner

Desiree D. Frye, NP

Desiree D. Frye, NP

Nurse Practitioner

Lori Hale, PA

Lori Hale, PA

Physician Assistant

Michael Hall, PA

Michael Hall, PA

Physician Assistant

Sheila Haltom-Wilson, NP

Sheila Haltom-Wilson, NP

Nurse Practitioner

Jill Hamburg, PA

Jill Hamburg, PA

Physician Assistant

Brooke Hodnick, PA

Brooke Hodnick, PA

Physician Assistant

Ofonime Ikpa, NP

Ofonime Ikpa, NP

Nurse Practitioner

Heather Johnston-Chambers, NP

Heather Johnston-Chambers, NP

Nurse Practitioner

Victoria Kay, PA

Victoria Kay, PA

Physician Assistant

Allison Kitchens, NP

Allison Kitchens, NP

Nurse Practitioner

Heather Kline, NP

Heather Kline, NP

Nurse Practitioner

Khoi Lang, PA

Khoi Lang, PA

Physician Assistant

Melissa Medina, NP

Melissa Medina, NP

Nurse Practitioner

Pauline Nguyen, NP

Pauline Nguyen, NP

Nurse Practitioner

Laila Nooruddin, NP

Laila Nooruddin, NP

Nurse Practitioner

Fiona Patel, PA

Fiona Patel, PA

Physician Assistant

LindaLee Smith, NP

LindaLee Smith, NP

Nurse Practitioner

Amy Stevens, NP

Amy Stevens, NP

Nurse Practitioner

Erin Stubblefield, PA

Erin Stubblefield, PA

Physician Assistant

Kelly Tripplehorn, NP

Kelly Tripplehorn, NP

Nurse Practitioner

Terri Wade, NP

Terri Wade, NP

Nurse Practitioner

Ella Wallace, NP

Ella Wallace, NP

Nurse Practitioner

Ashley Wiginton, PA

Ashley Wiginton, PA

Physician Assistant

Allied Health Providers

Carrie Cole Seale, MSW

Carrie Cole Seale, MSW

Behavioral Health Specialist

Jewel Gobea, CHES

Jewel Gobea, CHES

Nutritionist

Carmen McGhee, PT, DPT

Carmen McGhee, PT, DPT

Physical Therapist

Researchers

Dr. Chris Fourment

Dr. Chris Fourment

Director of Clinical Research & Education

Dr. Tim Ritter

Dr. Tim Ritter

Medical Director, Luminal Research Division