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About Us

About Us

We provide service for Banner - University Medical Center Phoenix, Banner Estrella Medical Center, Banner Ironwood Medical Center, and Banner Goldfield Medical Center.

Currently our group is comprised of over 50 full-time emergency care physicians (board certified/board eligible) and over 20 advanced practice providers.

Our Goals

To administer trust and compassion through personalized medical care To provide the best quality customer service

Founded in 1979
EPS is located
in Phoenix, AZ.

EPS provides excellent patient care in the greater Phoenix area along with top-notch customer support. We strive to provide the best medical care and compassion to our patients. Through our commitment, experience, and expertise EPS has established a business relationship with our customers that will last a lifetime!

Our staff

Office Staff

Elizabeth Mehrer
Director of Client Administration
Former Chief Operations Officer for EPS

Monica Holt
Practice Admin - Interm

Jennifer Crow
Administrative Assistant - Staff Special

Devyn Michelotti
Staffing Specialist - West Division
Envision Physician Services

Nichole Logan
Credentialing Coordinator

Alejandra Cervantez
Associate Administrative Assistant

Leticia Blanco
Associate Administrative Assistant

Miriam Glidewell
Lead Scribe

Katie McDonald
Operations Coordinator/Website Admin


Our Directors at EPS hold additional responsibilities at the Banner locations where we provide services.

Richard Bruno, M.D.
EPS Regional Medical Director
Vice Chief of Staff, Banner Ironwood & Banner Goldfield Medical Centers

David Streitwieser, M.D.
EPS Billing Director
MedLink Medical Director

Robert Porter, D.O.
Site Medical Director at Banner Ironwood Medical Center

Marvin (Todd) Clever, M.D.
EMS Director at Banner Estrella Medical Center

Moneesh Bhow, M.D.
Secretary/Treasurer of the Medical Staff at Banner - University Medical Center Phoenix
ED Medical Director at BUMCP

Terrence Brown, M.D. & J.D.
EPS Counsel
Medical Director & Chairman, Dept of Emergency Medicine at Banner Estrella Medical Center

Robert Baron, M.D.
EPS QA/QI Director

Erin Baas Pace, M.D.
Site Medical Director at Banner Goldfield Medical Center

Our Doctors

Emily Arena, M.D.
Erin Baas Pace, M.D.
Daniel Baldwin, M.D.
Robert Baron, M.D.
Andrew Bergeson, D.O.
Moneesh Bhow, M.D.
Bentley (Ben) Bobrow, M.D.
David Brown, M.D.
Terrence Brown, M.D.
Richard Bruno, M.D.
Lloyd (Spencer) Burns, D.O.
Scott Calder, D.O.
Stephanie Campbell, M.D.
Brad Chintis, M.D.
Marvin (Todd) Clever, M.D.
David Cohen, M.D. (per diem)
Jennifer Cohen, M.D.
Carrie Cook, D.O.
Colin Coor, M.D.
Steven Culley, D.O.
Diana Dabell, M.D.
Douglas Dang, M.D.
Justin Devlin, M.D. (per diem)
Vikas Gandhi, M.D.
John Gardner, M.D.
Jeffrey Gaver, M.D.
Brian Geyer, M.D.
Sean Gorman, M.D.
Amanda Grace, M.D.
Jason Grimsman, D.O.
Emily Hansen, M.D.
Anne Hermida, M.D.
Mellissa Holden-Leborgne, D.O.
Kevin Johnson, D.O.
Jessica Komara, D.O.
Delmar (Kent) Layton, M.D.
Mandy Limberg, D.O.
James (Jim) Lindgren, M.D.
Wendy Lucid, M.D.
Rhiannon Main, D.O.
John Mason, M.D.
Kristen McKinnon, M.D.
Christopher Miedema, M.D.
Joshua (Jed) Millar, D.O.
Alan Molk, M.D.
Aneesh Narang, M.D.
Erick O'Brien, D.O.
Brian Page, D.O.
Gavin Parisi, M.D.
Douglas Patton, M.D.
Robert Porter, D.O.
Michael Prescott, M.D. (per diem)
Wendy Prynn, M.D.
Beth Ranney, M.D.
Steven Reinhart, D.O.
Bradley Serack, M.D.
Eric Schenk, M.D.
Richard Seligson, M.D.
Shannon Smalley, D.O.
Jerry Snow, M.D.
David Streitwieser, M.D.
Thomas Striegel, D.O.
Cody Thorstenson, M.D.
Lester Tukan, M.D.
Mahmood Vahedian, M.D.
Nicholas Vasquez, M.D.
Christina Weaver, D.O.
Jessica Wickes, M.D.
Tim Widener, M.D.
Beth Wilson, D.O.
Anthony Wong, M.D.
Samantha Wu Halpert, M.D.
Teresa Wu, M.D.
Trevin Zarrinkelk, D.O.

Nurse Practitioners and Physician Assistants

Patricia (Val) Armstrong, P.A.
Patricia (Patti) Campbell, A.N.P.
Jaime Cole, P.A.
Matthew Cook, N.P.
Nathan Cook, P.A.
Sara Evans, P.A.
Katie Fisher, P.A.
Kevin Fordell, P.A.
Kristen Green, N.P. (per diem)
Joseph Harrison, P.A.
James Jarvise, P.A.
Dana Johnson, P.A.
Reese Jones, P.A.
Elizabeth Khoury, P.A.
David Lepley, P.A.
Monica Liu, P.A.
Yvonne Lorenzana, P.A.
Robert McPherson, P.A.
Brandon Morris, P.A.
Aly Myers, P.A.
Brian Pavlue, P.A.
Michael (Mike) Prebil, P.A.
David (Dave) Rigby, P.A.
John Saums, P.A.
LaNika Scepurek, P.A.
Rachel Schwarz, P.A.
Christopher Simpson, P.A.
Victoria (Viki) Smith, P.A.
Sara Sorace, P.A.
Amanda Vitagliano, P.A. (per diem)
Joseph (Joey) Vitagliano, P.A. (per diem)
Margaret (Peggy) Vitagliano, P.A.
Lauren Wilcox, P.A. (per diem)
Monica Winter-Zier, P.A.
Arleanne (Leanne) Yelle, F.N.P.
Emergency Professional Services' Doctors