Meet the Team

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

Physicians

Gilberto Arbelaez, MD
with GSEP since May 2015

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

Mandie Baker, M.D.
will be starting with GSEP 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

Liza Chopra, MD
with GSEP since August 2013

Richard Chuang, MD
with GSEP since February 2001

Dale Crockett, MD
with GSEP since August 2000

Dean Cromwell, MD
with GSEP since August 2014

Charles Dees, MD
with GSEP since August 2014

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

Gary Dufresne, DO
with GSEP since May 2014

Patrick Eitter, MD
with GSEP since February 2013

David Foss, MD
with GSEP since September 2014

Robert Frolichstein, MD
GSEP’s President
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
will be starting with GSEP July 2017

Wright Hartsell, MD
with GSEP since July 1992

David Holland, MD
with GSEP since July 1997

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

Michael Huott, MD
with GSEP since October 2002

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

Ryan Julien, MD
will be starting with GSEP July 2017

Amy Le, DO
will be starting with GSEP July 2017

Cecile LeBron Aponte, MD
will be starting with GSEP August 2017

Paul Lillich, MD
with GSEP since July 2014

Rene Lopez, MD
with GSEP since July 1997

Christopher McNeil, MD
with GSEP since March 2017

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

Kenil Patel, MD
with GSEP since July 2016

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

Alice Stothoff, MD
with GSEP since January 2005

LouAnne Wellford, MD
with GSEP since March 2005

Jessica Wentling, DO
will be starting with GSEP August 2017

Justin Williams MD
with GSEP since September 2013

Kellie Williams, MD
with GSEP since July 2015

Robert Wilson, MD
with GSEP since July 1995

Tad Wilson, MD
with GSEP since October 2015

Claudio Zeballos, MD
with GSEP since November 2009

Christine Zink, MD
with GSEP since February 2017

Nurse Practitioners and Physician Assistants

Jessica Arispe, NP
with GSEP since April 2016

Stacy Bratcher Brown, NP
with GSEP since March 2017

Micah Chevalier, PA
will be starting with GSEP fall/winter 2017

John Curran, PA
with GSEP since May 1998

Amy Darden, NP
with GSEP since February 2017

Sarah Dean, NP
will be starting with GSEP fall/winter 2017

Golden Eagle, NP
with GSEP since March 2017

Sabrina Esquivel, NP
with GSEP since December 2015

Leann Fikac, PA
with GSEP since September 2014

Hanika Francia NP
with GSEP since November 2014

Amber Hammer, NP
with GSEP since March 2017

Wendy Harris, NP
with GSEP since January 2013

Laura Haynes, PA
will be starting with GSEP June 2017

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

Abel Mendez, NP
with GSEP since August 2016

Sarah Merritt, PA
with GSEP since July 2016

Paula Montanaro, NP
with GSEP since September 2013

Christine Peterson, NP
with GSEP since October 2013

Mary Redeker, NP
Methodist Children’s Hospital
with GSEP since December 2012

Robert Romatowski, PA
will be starting with GSEP summer/fall 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

Judy White, NP
with GSEP since October 2014