About

The largest organization of physicians in Colorado, CMS champions health care issues that improve patient care, promote physician professional satisfaction and create healthier communities in Colorado.

The Colorado Medical Society is only as strong as its members. We thank all of our volunteer leaders for their participation on our councils and committees.

CMS Bylaws Committee

This committee periodically reviews the CMS Bylaws and makes recommendations to the CMS Board of Directors for updates.

Michael Volz, MD, (Chair) 
Jan Kief, MD
Rachelle Klammer, MD
Jeremy Lazarus, MD
Lee Morgan, MD 
William Neff, MD
Lynn Parry, MD
Brigitta Robinson, MD
Darlene Tad-Y, MD
Dean Holzkamp, CMS staff

CMS Executive Committee

The Executive Committee is composed of CMS elective leadership (president, president-elect and immediate past president) plus the chief executive officer.

David Markenson, MD, MBA, President
Sami Diab, MD, President-elect
Debra Parsons, MD, FACP, Past President
Mark Johnson, MD
Kim Warner, MD
Bryan Campbell, CEO, Ex Officio, non-voting

CEO Evaluation Committee

The CEO Evaluation Committee is composed of CMS elective leadership (president, president-elect and immediate past president) and at least two additional members of the board of directors that do not serve on either the Executive Committee or the Finance Committee and have had at least two years of service on the board of directors.

David Markenson, MD, MBA, President
Sami Diab, MD, President-elect
Debra Parsons, MD, MACP, Past President
Patrick Pevoto, MD, Treasurer
Curtis Hagedorn, MD 

CMS Finance Committee

This committee reviews the CMS finances and makes recommendations to the CMS Board of Directors.

David Markenson, MD, MBA, President
Sami Diab, MD, President-elect
Debra Parsons, MD, MACP, Past President 
Patrick Pevoto, MD, Treasurer (Chair)
Jason Kelly, MD
Dean Holzkamp, CMS staff


Strategic Planning Committee

This committee meets 3-5 times in the summer or fall to prepare the annual CMS strategic plan.

Sami Diab, MD, President Elect (Chair)
Mark Johnson, MD 
Jason Kelly, MD 
Deb Parsons, MD, MACP
Brad Roberts, MD
Chet Seward, CMS staff

COMPAC (Colorado Medical Society Political Action Committee)

COMPAC reviews all candidate endorsements, based on input by local physicians and the CMS Government Affairs division, and decides which candidates to endorse and at what level.

Christopher Unrein, DO (Chair) 
Patrick Pevoto, MD, Treasurer (Vice-Chair)
John O. “Jack” Cletcher, MD
Iris Burgard
Mark Johnson, MD
Taj Kattapurum, MD
Jibran Khan
Jan Kief, MD
Rachel Landin
Katie Lozano, MD, FACR 
David Markenson, MD, MBA, President
Lee Morgan, MD
Edward Norman, MD
Tamaan Osbourne-Roberts, MD
Kurt Papenfus, MD
Lynn Parry, MD
Debra Parsons, MD, MACP, Past President
Stephen Sherick, MD 
Michael Volz, MD
Patricia Weber, MD
William Wright, MD
Emily Bishop, CMS staff (lead)

CMS-CPMG Governing Council

Kim Warner, MD (Chair) 
Christopher Fellenz, MD
Shannon Jantz, MD
Eleanor Jensen, DO
Nora Reznickova, MD
Alison Sandberg, MD
Ashley Wheeler, MD
Bryan Campbell, CMS staff (lead)
Krystle Medford, CMS staff

CME In-House Advisory Function

Michael J Pramenko, MD (Chair)
Gene Richer, CMS staff

Council on Ethical and Judicial Affairs (CEJA)

This is an active committee that considers any issue under its jurisdiction, often by directive of the CMS Board of Directors.

Lynn Parry, MD (Chair)
Paul Anderson, MD (Vice-Chair)
Elizabeth Grace, MD
Clara Raquel Epstein, MD
Pauline Hoosepian-Mer
Elizabeth Lowdermilk, MD 
Katie Lozano, MD, FACR
Mark Levine, MD
Debra Parsons, MD, MACP, Past President 
Christopher Unrein, DO, FACOI, FACP, CMD 
Matthew Wynia, MD, MPH, FACP, Special Advisor
Dean Holzkamp, CMS staff (lead)

Council on Legislation (COL)

This very active committee meets twice a month during the Colorado legislative session (January-May) to determine positions on bills under consideration by the legislature, and between meetings holds discussions and votes on a secure file-sharing platform.

Kim Warner, MD (Chair) 
Mark B. Johnson, MD (Vice Chair)
Deborah Archer, MD
Eric Balaban, MD
Scott Dhupar, MD
Dave Downs, MD
Clara Raquel Epstein, MD
Kristin Freestone, MD
Gary Ghiselli, MD
Rachel Graham
Enno Heuscher, MD 
Nathaniel Hibbs, MD
Jeremy Huff, MD 
Shannon Jantz, MD 
George Kalousek, MD 
Taj Kattapuram, MD
F. Brent Keeler, MD
Alan Kimura, MD, MPH
Terrance L Lakin, DO, MPH
Rachel Landin
Steven Lowenstein, MD, MPH 
David Markenson, MD, MBA, President
Jason Mayer, MD
Frederick M Miller, MD 
Lee Morgan, MD, CMS Appointee
Carla Murphy, DO
Todd Mydler, MD
Tamaan Osbourne-Roberts, MD
Stacy Parra, MD
Lynn Parry, MD
Debra Parsons, MD, MACP, Past President 
Richard Penaloza, MD
Scott Replogle, MD
Ian Reynolds, MD 
Brandi Ring, MD 
Allison Sandberg, MD 
Emily N. Schneider, MD
Donna Sullivan, MD 
Lisa Swanson, MD
Darlene Tad-y, MD
Michaela Thurston
Kathleen “Kiki” Traylor, MD
Christopher Unrein, DO
Gary VanderArk, MD
Usha Varma, MD
Michael Volz, MD
Bruce Waring, MD
Emily Bishop, CMS staff (lead)

COL Scope of Practice workgroup

David Markenson, MD, MBA, President
Lee Morgan, MD 
Mark B Johnson, MD
Taj Kattapuram, MD
Glenn Madrid, MD
Lynn Parry, MD
Emily Bishop, CMS staff (lead)

Nominating Committee

This committee examines the process for nominating candidates for CMS leadership positions, encourages future leaders to apply, monitors the notification process for the call for nominations, and screens all nominees.

Mark B. Johnson, MD (Chair) 
Aaron Jones, MSC
Brent Keeler, MD 
Jeremy Lazarus, MD 
Chris Linares, MD 
Michael J Pramenko, MD
Dean Holzkamp, CMS staff

Committee on Physician Wellbeing

This committee directs the activities of CMS that pertain to physician wellness and burnout prevention.

Martina Schulte, MD (Chair)
Clara Raquel Epstein, MD
Mark Fogg, JD
Doris Gundersen, MD
David Hutchison, MD
Andrew Kamel
F Brent Keeler, MD
Lela Mansoori, MD
Rob Martin, MD
Dianne McCallister, MD
William Neff, MD
Debra Parsons, MD, MACP, Past President
Patrick Pevoto, MD 
Christie Reimer, MD 
Deborah Saint-Phard, MD 
Oscar Sanchez, MD 
Donna Sullivan, MD
Judy Toney, DO
Michael Victoroff, MD
Jennifer Wood, MD
Alison Yager, MD
Elizabeth Yoder, MD
Bryan Campbell, CMS staff (lead)
Dianna Fetter, CMS staff

Special Committee on Prescription Drug Abuse

This committee directs the activities of CMS that pertain to prescription drug abuse, the opioid epidemic, and other related topics.

John S. Hughes, MD (Chair)
J. Scott Bainbridge, MD
John Clapp, MD
Sami Diab, MD
Tom Denberg, MD
Ken Finn, MD
Brian Flynn, MD
Gary Ghiselli, MD
Jan Gillespie, MD
Elizabeth Grace, MD
Andrew Hall, MD
Jason Hoppe, DO
Shannon Jantz, MD
Ellie Jensen, DO
Robin Johnson, MD
Stuart Kassan, MD
Rebecca Knight, MD
Tom Kurt, MD
Alan Lembitz, MD
Elizabeth Lowdermilk, MD 
Cyrus Mirshab, MD
Kathryn Mueller, MD
Carla E. Murphy, DO
Erik Natkin, DO
Lee Newman, MD 
Lynn Parry, MD 
Jens-Peter Witt, MD 
John Sacha, MD 
Bob Sammons, MD
Donald Stader, MD 
Chris Unrein, DO
Robert Valuck, PhD 
Steven Wright, MD
Amy Goodman, CMS staff (lead)
Chet Seward, CMS staff

Task Force on Committee Evaluation

Jeremy Lazarus, MD (Chair)
Mark Johnson, MD
Rachell Klammer, MD
Jacob Leary
Kay Lozano, MD
Robert Yakely, MD 
Bryan Campbell, CMS Staff (lead)
Dean Holzkamp, CMS Staff

Committee on Professional Education and Accreditation (CPEA)

This committee oversees CMS’s ACCME-Recognized Accreditor program.

Joel Dickerman, DO (Chair) 
Brenda Bucklin, MD
Lynn Parry, MD
Patrick Pevoto, MD
Sharisse Rehring-Arnold, MD
Kristin Wallick, MD
Gene Richer, CMS staff

Workers’ Compensation and Personal Injury Committee (WCPIC)

This committee directs the activities of CMS that pertain to workers’ compensation and any other personal injury-related issues.

Greg Smith, DO (Chair)
Jan F Baumgardner, MD
J Tashof Bernton, MD
Andrew Castro, MD
Margaret Cook-Shimanek, MD
Tom Denberg, MD
Sami Diab, MD, President-elect
Rob Kawasaki, MD
David Markenson, MD, MBA, President
James McLaughlin, MD
X.J Ethan Moses, MD, MPH, FACOEM
Kathryn Mueller, MD
Lynn Parry, MD
Deb Parsons, MD, MACP, Past President 
Joe Ramos, MD, JD
Michael Rauzzino, MD
Gary Zuehlsdorff, DO
Amy Goodman, CMS staff

CMS Foundation

Gary VanderArk, MD (Chair) 
Jack L Berry, MD
John O Cletcher Jr, MD 
Dean Coddington 
Denise Denton
Mark Deutchman, MD 
Brenda Higgins 
Denny O’Malley 
Lowell Palmquist 
Robert B Sawyer, MD 
Edie Sonn
Dianna Fetter, CMS staff

CMS Education Foundation

Jerry J Appelbaum, MD (Chair)
Jack L Berry, MD
Elinor T Christiansen, MD
Mark Deutchman, MD
Dave Downs, MD, FACP
Mark Levine, MD
Patrick Pevoto, MD, RPh, MBA
William G Rainer Jr, MD
James R Regan, MD
David Ross, DO, FACEP
Dianna Fetter, CMS staff

Work Group on Health Care Costs and Quality

This committee oversees CMS activities that relate to health care costs and quality, including prospective bills, rules and regulations, as well as other initiatives.

Dave Downs, MD, (Chair) 
Jeff Donner, MD
Alysa Edwards
Joseph M. Forrester, MD, FACP, FCCP
Anne L Fuhlbrigge, MD
Jan Gillespie, MD
Jeremy Huff, MD
Alan Kimura, MD, MPH
Jeremy Lazarus, MD
Kyle Leggott, MD
Elizabeth Lowdermilk, MD
Michael Moore, MD
Claire Murphy, MD
Mike Pramenko, MD
Al Steinmann, MD
Darlene Tad-Y, MD
Kim Warner, MD
Kelly Baldessari
John Milewski
Shawn Wotowey
Chet Seward, CMS staff (lead)
Amy Goodman, CMS staff

Expert Panel on Professional Review

Jeffrey Bacon, MD
Scott Bentz, MD
James P. Borgstede, MD, FACR
Rachel M. Carpenter, MD
Keith Scott Dickerson, MD, MS
Matthew J. Fleishman, MD, FACR
Brian Harrington, MD, MPH
Jacqueline H. Jamison, MD
Adam Koszowski, MD
Randall Meachum, MD
Neal O'Connor, MD, FACEP
Lynn Parry, MD
Debra Parsons, MD MACP, Past President
Surit Sharma, MD
Philip F. Stahel, MD, FACS
Darlene Tady, MD
Tony J. Toloczko, MD
Gerald Zarlengo, MD
Chet Seward, CMS staff