ECAA Welcomes New Billing Partner, Zotec, Starting July 1, 2025

ECAA Welcomes New Billing Partner, Zotec, Starting July 1, 2025

Zotec’s patient portal, live customer service, payment options, and consolidated statements make patient interactions and billing seamless and stress-free.

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jason ryan

Jason W. Ryan, MD

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

Board Certification in Perioperative TEE

EDUCATION

Duke University Medical Center, Durham, NC, Fellow in Cardiothoracic Anesthesia, 2002-2003

Harvard Medical School, Brigham and Women’s Hospital, Boston, MA, Resident in Anesthesiology, 1999-2002

Northwestern Medical School, Northwestern Memorial Hospital, Chicago, IL, Resident in Internal Medicine, 1998-1999

University of Illinois at Chicago School of Medicine, Chicago, IL, Doctor of Medicine, 1994-1998

University of Illinois at Urbana-Champaign, Champaign, IL, Bachelor of Science, Physiology 1990-1994

stefanie robinson

Stefanie M. Robinson, MD

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

EDUCATION

Medical University of South Carolina, Charleston, SC, Department of Anesthesia and Perioperative Medicine, Anesthesiology Residency, 2014-2017

Medical University of South Carolina, Charleston, SC, Department of Anesthesia and Preoperative Medicine, Integrated Internship, 2013-2014

Medical University of South Carolina, Charleston, SC, College of Medicine, Doctor of Medicine, 2009-2013

Clemson University, Clemson, SC, Calhoun Honors College, B.S. Health Science, 2005-2009

gary mullen

Gary J. Mullen, MD, MBA

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

Neonatal Resuscitation Program (NRP)

Advanced Trauma Life Support (ATLS)

Neonatal advanced Life Support (NALS)

EDUCATION

Massachusetts Institute of Technology, Cambridge, MA, Masters of Business Administration, Sloan School of Management, 2008-2009

Harvard Medical School, Brigham and Women’s Hospital Residency, Boston, MA, Department of Anesthesia, Pain & Perioperative Medicine, 2005-2008

East Tennessee State University, Johnson City, TN, Internship, Obstetrics & Gynecology, 1998-1999

University of Cincinnati College of Medicine, Cincinnati, OH, Doctor of Medicine, 1994-1998

Miami University at Oxford, Oxford, OH, Bachelor of Arts, Chemistry, 1990-1994

daniel lavalley

Daniel J. LaValley, MD

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

EDUCATION

Duke University Medical Center, Durham, NC, Resident, Department of Anesthesiology, 2006-2009

Duke University Medical Center, Durham, NC, Internship, Department of Anesthesiology, 2005-2006

University of Michigan Medical School, Ann Arbor, MI, Doctor of Medicine, 2001-2005

University of Michigan, Ann Arbor, MI, Bachelor of Science, Biology, 1996-2000

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Graham G. Lashley, MD

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

EDUCATION

Duke University Medical Center, Durham, NC, Fellowship, Cardiac Anesthesia, 2001 to present

Duke University Medical Center, Durham, NC, Residency, Anesthesiology, 1998-2001

Moses Cone Hospital, Greensboro, NC, Internship, Internal Medicine, 1997-1998

University of Utah School of Medicine, Salt Lake City, UT, Doctor of Medicine, 1997

Guilford College, Greensboro, NC, Bachelor of Science, Business Management and Economics, 1988

lynn johnson

Lynn R. Johnson, MD, ABAPM, MS

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

American Board of Anesthesiology / Pain Medicine Subspecialty Certification

American Board of Pain Management

American Board of Addiction Medicine

EDUCATION

Harvard Medical School Brigham and Women’s Hospital, Boston, MA, Fellowship, Anesthesiology, Pain Medicine/Regional Anesthesia, 1987-1988

Harvard Medical School Brigham and Women’s Hospital, Boston, MA, Residency, Anesthesiology, 1985-1987

Thomas Jefferson University Hospital, Philadelphia, PA, Internship, Medicine, 1984-1985

University of Pittsburgh, Pittsburgh, PA, Doctor of Medicine, 1984

Georgetown University, Washington, DC, Master of Science, Physiology, 1980

University of Arizona, Tucson, AZ, Bachelor of Arts, Psychology/Biology, 1976

micheal holdeman

Michael L. Holdeman, MD

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

American Board of Internal Medicine

American Board of Pediatrics

EDUCATION

Department of Pediatric Anesthesiology, University of Michigan, Ann Arbor, MI, Mott Children’s Hospital 2005-2006

The University of Washington Medical Center, Seattle, WA, Department of Anesthesiology Residency Training Program, 2000-2003

The New York Hospital, Cornell Medical Center, New York, NY Internship in Internal Medicine and Pediatrics, 1988-1992

University of Texas Southwestern Medical School, Dallas, TX, Doctor of Medicine, 1988

Columbia University, New York, NY, Bachelor of Arts, English, 1982

christopher grubb

Christopher T. Grubb, MD, ABPM

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

American Board of Pain Medicine

EDUCATION

University of Virginia Health System, Charlottesville, VA,Residency, Department of Anesthesiology, 2001-2004

University Health System of Eastern North Carolina, Greenville, NC, Residency, Department of Family Medicine, 2000-2001

Mount Sinai Medical Center, New York, NY, Research Fellow, Department of Anesthesiology, 1997-1998

Brody School of Medicine at East Carolina University, Greenville, NC, Doctor of Medicine, 1996-2000

Davidson College, Davidson, NC, Bachelor of Science, Chemistry, 1992-1996

manuel gorrin rivas

Manuel J. Gorrin-Rivas, MD, PhD, FASE

GREENVILLE

BOARD CERTIFICATIONS

American Board of Anesthesiology

National Board of Echocardiography

EDUCATION

Duke University Medical Center, Durham, NC, Fellowship, Cardiothoracic Anesthesia, Department of Anesthesiology, 2006-2007

University of Arkansas for Medical Sciences, Little Rock, AR, Residency, Department of Anesthesiology, 2003-2006

University of Arkansas for Medical Sciences, Little Rock, AR, Internship, Department of Anesthesiology, 2002-2003

Kyoto University, Kyoto, Japan, PhD, Department of Surgery and Surgical Basic Science, 1997-2001

Central University of Venezuela, Caracas, Venezuela, Doctor of Medicine, 1985-1992

richard d'alonzo

Richard C. D’Alonzo, MD, PhD, FASE

GREENVILLE

Greenville Division Clinical Chief

Past Chief of Staff

BOARD CERTIFICATIONS

American Board of Anesthesiology

National Board of Echocardiography

EDUCATION

Duke University Medical Center, Durham, NC, Cardiothoracic Fellowship, 2008

Duke University Medical Center, Durham, NC, Residency in Anesthesia, 2007

Saint Louis University Medical School, St. Louis, MO, Doctor of Medicine, 2003

Saint Louis University Medical School, St. Louis, MO, Ph.D., Department Pharmacological and Physiological Science, 2001

Duke University, Durham, NC Bachelor of Science in Biology and Chemistry, 1994

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