Meet the Team

Please meet our core staff of physicians, nurse practitioners, and physician assistants.

Physicians

Lee Armstrong, MD
Methodist Children’s Hospital
with GSEP since November 2014

Mandie Baker, M.D.
with GSEP since August 2017

Marie Berkenkamp, MD
Methodist Children’s Hospital
with GSEP since August 1995

James Black, MD
with GSEP since July 2014

Brad Boothby, MD
with GSEP since September 2014

Michelle Brucal, DO
will be starting with GSEP in 2019

Liza Chopra, MD
with GSEP since August 2013

Richard Chuang, MD
with GSEP since February 2001

Dean Cromwell, MD
with GSEP since August 2014

Ryan Cruz, MD
will be starting with GSEP fall 2018

Charles Dees, MD
with GSEP since August 2014

Brian Dillon, MD
will be starting with GSEP fall 2018

Dale DuBois, MD
Methodist Children’s Hospital
with GSEP since July 2011

Gary Dufresne, DO
with GSEP since May 2014

Matthew Eaton, DO
will be starting with GSEP fall 2018

Patrick Eitter, MD
with GSEP since February 2013

Robert Frolichstein, MD
with GSEP since June 2002

Jennifer Gemmill, MD
with GSEP since May 2015

Mark Gentile, MD
with GSEP since July 2012

Craig Gerstenkorn, MD
with GSEP since January 1993

Randal Hale, MD
with GSEP since August 2017

Wright Hartsell, MD
with GSEP since July 1992

Courtney Horton, MD
Methodist Children’s Hospital
with GSEP since January 2018

Leslie Hunter, MD
Methodist Children’s Hospital
with GSEP since September 2014

Christine Johnson, MD
Methodist Children’s Hospital
with GSEP since October 2013

Ryan Julien, MD
with GSEP since October 2017

Amy Le, DO
with GSEP since August 2017

Paul Lillich, MD
with GSEP since July 2014

Sumeru (Sam) Mehta, MD
with GSEP since November 2007

Rachel Metz, MD
with GSEP since July 2012

Colin Meyer, MD
with GSEP since August 2015

Matthew Miller, MD
will be starting with GSEP fall 2018

Kenneth Nugent, MD
will be starting with GSEP fall 2018

Jennifer Pease, MD
with GSEP since July 2014

Sebrina Perkins, MD
Methodist Children’s Hospital
with GSEP since July 2002

Edward Porrata, MD
Methodist Children’s Hospital
with GSEP since October 1997

Salim Rezaie, MD
with GSEP since August 2016

Michael Richard, MD
with GSEP since July 1991

David Riojas, MD
Methodist Children’s Hospital
with GSEP since January 2011

Gabe Rodriguez, MD
with GSEP since December 2013

James Row, MD
with GSEP since February 1984

Bennie Rush, MD
with GSEP since July 2016

Virginia Sanders, MD
Methodist Children’s Hospital
with GSEP since July 2011

Randall Schuster, MD
with GSEP since July 2007

Steven Shroyer, MD
with GSEP since July 1987

Morey Silverman, MD
with GSEP since September 2013

Charles Stephens, MD
with GSEP since August 2016

Sushil Valavalkar, MD
with GSEP since November 2014

LouAnne Wellford, MD
with GSEP since March 2005

Jessica Wentling, DO
with GSEP since August 2017

Justin Williams MD
with GSEP since September 2013

Robert Wilson, MD
with GSEP since July 1995

Tad Wilson, MD
with GSEP since October 2015

Nurse Practitioners and Physician Assistants

Jessica Arispe, NP
with GSEP since April 2016

Stacy Bratcher, NP
with GSEP since March 2017

Micah Chevalier, PA
with GSEP since August 2017

John Curran, PA
with GSEP since May 1998

Amy Darden, NP
with GSEP since February 2017

Sarah Dean, NP
with GSEP since June 2017

Golden Eagle, NP
with GSEP since March 2017

Sabrina Esquivel, NP
with GSEP since December 2015

Amber Hammer, NP
with GSEP since March 2017

Abel Mendez, NP
with GSEP since August 2016

Sarah Merritt, PA
with GSEP since July 2016

Paula Montanaro, NP
with GSEP since September 2013

Laura Haynes, PA
with GSEP since June 2017

Peter Kimball, PA
with GSEP since May 2017

Mary Maffei, NP
Methodist Children’s Hospital
with GSEP since August 2006

Hector Pallares, NP
with GSEP since November 2017

Sean Therien, PA
with GSEP since October 2014

Erica Tolentino, NP
with GSEP since September 2015

Mary Waterman, NP
with GSEP since December 2015

Amara Waturocha, PA
with GSEP since October 2017