Your Safety First
Anesthesia Interview: 541-222-3154
Post Operative Issues: 541-222-7522
Billing Office: 541-686-9551

Our Staff

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All
Acute Pain Team
Anesthesiologists
Nurse Anesthetists

Mathieu Assercq, MD

Anesthesiologist

Mathieu Assercq, MD

Anesthesiologist

Medical education:
Medical school: Louisiana State University Health Science (2018)
Residency: Univ. of Missouri-Kansas City School of Medicine (2022)

Board certification: Anesthesiology (In ABA System)

NAP anesthesiologist since: 2022

Stephen Aufderheide, MD

Anesthesiologist

Stephen Aufderheide, MD

Anesthesiologist

Medical education:
Medical school: University of Arizona College of Medicine (1996)
Residency: The Johns Hopkins Hospital (2000)
Fellowship: Cardiothoracic Anesthesia, The Johns Hopkins Hospital (2001)

Board certification: Anesthesiology (2001)

NAP anesthesiologist since: 2004

Meg Barnhart, MD

Anesthesiologist

Meg Barnhart, MD

Anesthesiologist

Medical education:
Medical school: University of Arizona College of Medicine (2011)
Residency: Loma Linda Univ. Medical Center (2015)

Board certification: Anesthesiology (2016)

NAP anesthesiologist since: 2015

Walter Bernard, MD

Anesthesiologist

Walter Bernard, MD

Anesthesiologist

Medical education:
Medical school: University of Missouri (1986)
Residency: Stanford University (1990)

Board certification: Anesthesiology (1991)

NAP anesthesiologist since: 2000

Lloyd Biby, MD

Anesthesiologist

Lloyd Biby, MD

Anesthesiologist

Medical education:
Medical school: University of Oklahoma College of Medicine (1987)
Residency: Emory University (1991)
Fellowship: Cardio-Thoracic Anesthesia, Emory University (1991)

Board certification: Anesthesiology (1992)

NAP Anesthesiologist since: 2009

Peter Bissonnette, MD

Anesthesiologist

Peter Bissonnette, MD

Anesthesiologist

Medical education:
Medical school: University of Wisconsin School of Medicine and Public Health (2001)
Residency: Medical College of Wisconsin (2005)

Board certification: Anesthesiology (2006)

NAP anesthesiologist since: 2005

Kristen Engstrom, MSN

CRNA

School graduated with CRNA Degree: Bryan College of Health Sciences, Lincoln, NE

License and Year Obtained: CRNA 2013

NAP CRNA since: 2022

Martha Espinosa-Blank, MSN

CRNA

School graduated with CRNA Degree: Kaiser Permanente/CSU Long Beach

License and Year Obtained: CRNA 1988

NAP CRNA since: 1/1996

Robert Carricaburu, MD

Anesthesiologist

Robert Carricaburu, MD

Anesthesiologist

Medical education:
Medical school: Creighton University (1999)
Residency: University of Wisconsin (2003)

Board certification: Anesthesiology (2004)

NAP anesthesiologist since: 2004

Rebecca Carroll, MD

Anesthesiologist

Rebecca Carroll, MD

Anesthesiologist

Medical education:
Medical school: Rosalind Franklin University of Medicine and Science (2006)
Residency: University of Texas, Dept of Anesthesiology (2011)

Board certification: Anesthesiology (2016)

NAP anesthesiologist since: 2021

Domenico Castaldo, MD

Anesthesiologist

Domenico Castaldo, MD

Anesthesiologist

Medical education:
Medical school: University of Texas (1998)
Residency: University of California San Diego Medical Center (2002)

Board certification: Anesthesiology (2003)

NAP anesthesiologist since: 2002

Albert Cho, MD

Anesthesiologist

Albert Cho, MD

Anesthesiologist

Medical education:
Medical school: Arizona College of Osteopathic Medicine of Midwestern University (2002)
Residency: Tufts University Baystate Medical Center (2007)

Board certification: Anesthesiology (2008)

NAP anesthesiologist since: 2007

Roger Coleman, MD

Anesthesiologist

Roger Coleman, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health and Science University (2004)
Residency: Oregon Health and Science University (2008)

Board certification: Anesthesiology (2009)

NAP anesthesiologist since: 2008

Charles Cook, MD

Anesthesiologist

Charles Cook, MD

Anesthesiologist

Medical education:
Medical school: Loma Linda University (1983)
Residency: Loma Linda University (1986)

Board certification: Anesthesiology (1988)

NAP anesthesiologist since: 2020

Martin D’ Ambrosio, MD

Anesthesiologist

Martin D’ Ambrosio, MD

Anesthesiologist

Medical education:

Medical school: Universidad de Buenos Aires School of Medicine 

Residency: University of Iowa Anesthesiology 

Fellowship: Cardiothoracic, Texas Heart Institute (2019)

 

Board certification: Anesthesiology 2019, Cardiothoracic 

NAP anesthesiologist since: 2019

Dierdre Garton, MD

Anesthesiologist

Dierdre Garton, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health and Science University (2013)
Residency: University of Rochester Medical Center (2017)

Board certification: Anesthesiology (2021)

NAP anesthesiologist since: 2017

Emily Gerstman, MD

Anesthesiologist

Emily Gerstman, MD

Anesthesiologist

Medical education:
Medical school: Medical College of Wisconsin (2009)
Residency: Medical College of Wisconsin (2013)

Board certification: Anesthesiology (2014)

NAP anesthesiologist since: 2013

Jon Saxon Gilbert, MD

Anesthesiologist

Jon Saxon Gilbert, MD

Anesthesiologist

Medical education:
Medical school: Dartmouth Medical School (2000)
Residency: Oregon Health and Science University  (2008)

Board certification: Anesthesiology (2009)

NAP anesthesiologist since: 2021

Benjamin S. Gmelch, MD

Anesthesiologist

Benjamin S. Gmelch, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health and Science University (2004)
Residency: Virginia Mason Medical Center (2008)
Fellowship: Perioperative Echocardiography, University of Utah (2009)

Board certification: Anesthesiology (2009)

NAP anesthesiologist since: 2013

John Guevara, MD

Anesthesiologist

John Guevara, MD

Anesthesiologist

Medical education:
Medical school: UCLA School of Medicine (1987)
Residency: Harbor - UCLA Medical Center (1991)

Board certification: Anesthesiology (1993)

NAP anesthesiologist since: 2020

Seth Gunderson, DO

Anesthesiologist

Seth Gunderson, DO

Anesthesiologist

Medical education:
Medical school: A.T. Still University-Kirksville College of Osteopathic Medicine (2009)
Residency: Heart of Lancaster Regional Medical Center (2013)

Fellowship: Critical Care, Univ of Virginia Health System (2014)

Board certification: Anesthesiology (2016) Critical Care (2017)

NAP anesthesiologist since: 2019

Christopher Hagen, MD

Anesthesiologist

Christopher Hagen, MD

Anesthesiologist

Medical education:
Medical school: University of Washington School of Medicine (2003)
Residency: Virginia Mason Medical Center (2007)

Board certification: Anesthesiology (2009)

NAP anesthesiologist since: 2008

Daniel Hagengruber, MD

Anesthesiologist

Daniel Hagengruber, MD

Anesthesiologist

Medical education:

Medical school: University of Wisconsin School of Medicine and Public Health (1991)

Residency: University of Utah (1995)

Board certification: Anesthesiology (1996)

NAP anesthesiologist since: 1995

Holger Hennig, MD

Anesthesiologist

Holger Hennig, MD

Anesthesiologist

Medical education:

Medical school: University of Wurzburg (1992)

Residency: University of Utah, Department of Anesthesiology (1999)

Fellowship: Pain Medicine, University of Utah (2000)

 

Board certification: Anesthesiology 2003

NAP anesthesiologist since: 2021

Mark Hibbard, MD

Anesthesiologist

Mark Hibbard, MD

Anesthesiologist

Medical education:
Medical school: Albany Medical College (2001)
Residency: Henry Ford Hospital (2005)

Board certification: Anesthesiology (2006)

NAP anesthesiologist since: 2005

Jennifer Hickman, MD

Anesthesiologist

Jennifer Hickman, MD

Anesthesiologist

Medical education:
Medical school: Medical College of Wisconsin (2002)
Residency: Medical College of Wisconsin (2005)

Fellowship: Pain, Medical College of Wisconsin (2008) Pediatrics, Medical College of Wisconsin (2008)

Board certification: Anesthesiology (2010) Pain (2012) Pediatrics (2013) 

NAP anesthesiologist since: 2020

Bob Hitchcock, DO

Anesthesiologist

Bob Hitchcock, DO

Anesthesiologist

Medical Education: 

Medical school: Lake Erie College of Osteopathic Medicine (2013)

Residency: University of Iowa (2017)

Cardiovascular fellowship: University of Kentucky (2019)

Board certification: Anesthesiology (2018)

NAP anesthesiologist since: 2019

Brian Jones, MD

Anesthesiologist

Brian Jones, MD

Anesthesiologist

Medical education:

Medical school: Oregon Health and Science University (1994)

Residency: University of Iowa (1998)

Fellowship: Obstetrical Anesthesia, Duke University (1999)

Board certification: Anesthesiology (1999)

NAP anesthesiologist since: 2005

Setiawan Kamaru, DO

Anesthesiologist

Setiawan Kamaru, DO

Anesthesiologist

Medical education:
Medical school: Michigan State University (1999)
Residency: Henry Ford Hospital (2004)

Board certification: Anesthesiology (2005)

NAP anesthesiologist since: 2004

Mark Krause, MD

Anesthesiologist

Mark Krause, MD

Anesthesiologist

Medical education:
Medical school: Loma Linda University (1991)
Residency: University of Rochester (2004)

Board certification: Family Medicine (1994), Anesthesiology (2007)

NAP anesthesiologist since: 2004

Alexander Legg, MD

Anesthesiologist

Alexander Legg, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health & Science University (2017)
Residency: University of Washington (2021)

Board certification: Anesthesiology (2022)

NAP anesthesiologist since: 2021

Gail McKelvy, RN

RN

School graduated with RN degree: Lane Community College

License and Year Obtained: RN, 1981

NAP RN since: 3/2007

Laura McElroy, MD

Anesthesiologist

Laura McElroy, MD

Anesthesiologist

Medical education:
Medical school: University of Toledo College of Medicine (2009)
Residency: University of Rochester Medical Center (2013)
Fellowship: Critical Care, University of Rochester Medical Center (2014)

Board certification: Anesthesiology (2015) Critical Care (2017)

NAP anesthesiologist since: 2022

Michael Moore, MD

Anesthesiologist

Michael Moore, MD

Anesthesiologist

Medical education:

Medical school: University of Texas Health Science Center San Antonio (2012)

Residency: University of New Mexico School of Medicine (2016)

Board certification: Anesthesiology (2018)

NAP anesthesiologist since: 2016

Scott Myrick, MD

Anesthesiologist

Scott Myrick, MD

Anesthesiologist

Medical education:
Medical school: David Geffen School of Medicine at UCLA, 2006
Residency: University of California San Diego Medical Center (2010)

Board certification: Anesthesiology (2011)

NAP anesthesiologist since: 2010

Evan New, DO

Anesthesiologist

Evan New, DO

Anesthesiologist

Medical education:
Medical school: University of New England College of Osteopathic Medicine (2018)
Residency: Temple University (2022)

Board certification: Anesthesiology (In ABA Exam System)

NAP anesthesiologist since: 2022

Luat Nguyen, MD

Anesthesiologist

Luat Nguyen, MD

Anesthesiologist

Medical education:
Medical school: Penn State University (1989)
Residency: Massachusetts General Hospital (1997)
Fellowship: Critical Care, Massachusetts General Hospital (1998)

Board certification: Anesthesiology (1998) Critical Care (1999)

NAP anesthesiologist since: 1999

Gary Nissen, MD

Anesthesiologist

Gary Nissen, MD

Anesthesiologist

Medical education:
Medical school: Creighton University (2017)
Residency: Virginia Mason Medical Center (2021)

Board certification: Anesthesiology (2022)

NAP anesthesiologist since: 2021

Stacie H. Oh, MD

Anesthesiologist

Stacie H. Oh, MD

Anesthesiologist

Medical education:
Medical school: University of Kansas School of Medicine (2006)
Residency: University of North Carolina (2007)

Board certification: Anesthesiology (2011)

NAP anesthesiologist since: 2010

Michael Ostrovsky, MD

Anesthesiologist

Michael Ostrovsky, MD

Anesthesiologist

Medical education:

Medical school: Northwestern University Medical School (1995)

Residency: Detroit Medical Center (2000)

Fellowship: Cardiothoracic Anesthesia, Mount Sinai School of Medicine (2003)

Board certification: Anesthesiology (2003)

NAP anesthesiologist since: 2015

 

Jocelyn A. Park, MD

Anesthesiologist

Jocelyn A. Park, MD

Anesthesiologist

Medical education:
Medical school: University of New Mexico School of Medicine (2004)
Residency: Dartmouth-Hitchcock Medical Center (2008)
Fellowship: Critical Care, Dartmouth-Hitchcock Medical Center (2009)

Board certification: Anesthesiology (2009) Critical Care (2010)

NAP anesthesiologist since: 2009

Dorothy Ann Penaloza, MD

Anesthesiologist

Dorothy Ann Penaloza, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health and Science University (2004)
Residency: Virginia Mason Medical Center (2008)

Board certification: Anesthesiology (2009)

NAP anesthesiologist since: 2008

Alex Raiskin, MD

Anesthesiologist

Alex Raiskin, MD

Anesthesiologist

Medical education:
Medical school: Siberian State Medical University (1996)
Residency: Wayne State University/Detroit Medical Center (2007)

Board certification: Anesthesiology (2008)

NAP anesthesiologist since: 2007

Michael Roll, MD

Anesthesiologist

Michael Roll, MD

Anesthesiologist

Medical education:
Medical school: Wake Forest School of Medicine (2015)
Residency: Virginia Mason Medical Center (2019)

Fellowship: Virginia Mason Medical Center (2020)

Board certification: Anesthesiology (2023)

NAP anesthesiologist since: 2020

Andrew Rushton, MD

Anesthesiologist

Andrew Rushton, MD

Anesthesiologist

Medical education:
Medical school: University of Oklahoma School of Medicine (2000)
Residency: Oregon Health and Science University (2004)

Board certification: Anesthesiology (2006)

NAP anesthesiologist since: 2004

Patrick Salisbury, MD

Anesthesiologist

Patrick Salisbury, MD

Anesthesiologist

Medical education:

Medical school: University of Cincinnati, College of Medicine (2003)

Residency: Virginia Mason Medical Center (2007)

Board certification: Anesthesiology (2008)

NAP anesthesiologist since: 2007

Adrienne Samar, MD

Anesthesiologist

Adrienne Samar, MD

Anesthesiologist

Medical education:
Medical school: University of Iowa Carver College of Medicine (2013)
Residency: University of Iowa Hospitals and Clinics (2017)
Fellowship: Critical Care, University of Iowa Hospitals and Clinics (2018)

Board certification: Anesthesiology (In the ABA exam system) Critical Care

NAP anesthesiologist since: 2018

Joyce Schlichting, MD

Anesthesiologist

Joyce Schlichting, MD

Anesthesiologist

Medical education:
Medical school: Georgetown University School of Medicine (1991)
Residency: Mayo Clinic (1995)

Board certification: Anesthesiology (1997)

NAP anesthesiologist since: 2001

Mark Shillington, MD

Anesthesiologist

Mark Shillington, MD

Anesthesiologist

Medical education:
Medical school: University of Texas Southwestern Medical School (2010)
Residency: University of Utah (2014)
Fellowship: Perioperative Echocardiography, University of Utah (2015)

Board certification: Anesthesiology (2015)

NAP anesthesiologist since: 2015

Rick Siel, Jr., MD

Anesthesiologist

Rick Siel, Jr., MD

Anesthesiologist

Medical education:
Medical school: University of Iowa Carver College of Medicine (2015)
Residency: University of Minnesota (2019)

Fellowship: Critical Care, University of Minnesota (2020)

Board certification: Anesthesiology (In the ABA Exam System)

NAP anesthesiologist since: 2020

Alex Shune, MD

Anesthesiologist

Alex Shune, MD

Anesthesiologist

Medical education:
Medical school: The Ohio State University School of Medicine (2009)
Residency: University of Iowa (2013)
Fellowship: Cardiothoracic Anesthesia, University of Iowa (2014)

Board certification: Anesthesiology (2014)

NAP anesthesiologist since: 2014

Steven Surrett, MD

Anesthesiologist

Steven Surrett, MD

Anesthesiologist

Medical education:

Medical school: University of Arizona College of Medicine (2010)

Residency: Upstate Medical University (2015)

Fellowship: Pain Medicine, Upstate Medical University (2016)

 

Board certification: Anesthesiology 2016, Pain Medicine 2017

NAP anesthesiologist since: 2019

Brian St. George, MD

Anesthesiologist

Brian St. George, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health and Science University (2000)
Residency: University of New Mexico (2004)

Board certification: Anesthesiology (2005)

NAP anesthesiologist since: 2004

Todd Tritch, MD

Anesthesiologist

Todd Tritch, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health and Science University (1992)
Residency: North Carolina Baptist Hospital (1996)
Fellowship: Virginia Mason Medical Center (1997)

Board certification: Anesthesiology (1998)

NAP anesthesiologist since: 1997

Jonathan Williams, MD

Anesthesiologist

Jonathan Williams, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health and Science University (2008)
Residency: University of Kansas (2012)

Board certification: Anesthesiology (2013)

NAP anesthesiologist since: 2012

John Traul, MD

Medical education:
Medical school: Medical College of Ohio (1994)
Residency: Fletcher Allen Healthcare (1998)

Board certification: Anesthesiology (1999)

NAP anesthesiologist since: 2022

Ken Woodward, MD

Anesthesiologist

Ken Woodward, MD

Anesthesiologist

Medical education:

Medical school: University of Pittsburgh School of Medicine (1999)

Residency: Mayo Graduate School of Medicine (2003)

Board certification: Anesthesiology (2004 & 2015)

NAP anesthesiologist since: 2007

Martin Velasquez, MD

Anesthesiologist

Martin Velasquez, MD

Anesthesiologist

Medical education:
Medical school: Saba University School of Medicine (2017)
Residency: SUNY Downstate Medical Center (2021)
Fellowship: Acute Pain, The Ohio State University (2022)

Board certification: Anesthesiology (In the ABA exam system) 

NAP anesthesiologist since: 2022

Simon Yang, MD

Anesthesiologist

Simon Yang, MD

Anesthesiologist

Medical education:
Medical school: Oregon Health & Science University (2014)
Residency: University of Rochester Medical Center (2018)

Board certification: Anesthesiology (In the ABA exam system)

NAP anesthesiologist since: 2018

Caroline Zawilski, MD

Anesthesiologist

Caroline Zawilski, MD

Anesthesiologist

Medical education:
Medical school: University of Medicine and Dentistry of New Jersey (RWJ) (2011)
Residency: University of Rochester, Strong Memorial Hospital (2015)

Board certification: Anesthesiology (2017)

NAP anesthesiologist since: 2021

Billy Zhang, MD

Anesthesiologist

Billy Zhang, MD

Anesthesiologist

Medical education:
Medical school: Quinnipiac University (2018)
Residency: University of  California Davis (2022)

Board certification: Anesthesiology (In the ABA exam system) 

NAP anesthesiologist since: 2022

Alix Zuleta-Alarcon, MD

Anesthesiologist

Alix Zuleta-Alarcon, MD

Anesthesiologist

Medical education:
Medical school: Universidad de los Andes, Bogota, Colombia (2013)
Residency: Ohio State University (2021)
Fellowship: Adult Cardiothoracic, Ohio State University (2022)

Board certification: Anesthesiology (2022)

NAP anesthesiologist since: 2022

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Anesthesia Interview: 541-222-3154
Post Operative Issues: 541-222-7522
Billing Office: 541-686-9551

Billing Office: 939 Harlow Rd, Suite 110
Springfield OR 97477
Hospital Office: 3333 Riverbend Dr,
Springfield OR 97477