USAP - Key Persons


Aaron Ragan

Job Titles:
  • Assistant Chief CRNA, Central Florida

Adam Simonsen

Job Titles:
  • Member of the Central CO CGB

Adam Weingart

Job Titles:
  • Vice Chair, Central CO CGB
Adam Weingart, MD joined the legacy group, South Denver Anesthesiologists in 2013, after completing a fellowship in Acute Pain and Regional Anesthesia at Northwestern Memorial Hospital in Chicago. Dr. Weingart is currently Co-Chair of the USAP Acute Pain Service, as well as a member of the SDA legacy Scheduling Committee and liaison to the Integrated Care Team Committee.

Adam Wolpert

Job Titles:
  • Education / Medical School

Alexander Carrillo

Job Titles:
  • Education / Medical School

Amanda Miller

Job Titles:
  • Education

Amanda Stratman

Job Titles:
  • Education

Amjad Najim

Job Titles:
  • Member of the Central CO CGB

Amy Sanford - Chief Legal Officer, EVP, Secretary

Job Titles:
  • Corporate Secretary
  • Executive Vice President
  • General Counsel
  • Member of the Executive Leadership Team

Ana Faus

I am from Texas but have lived in Colorado since 1996. I love the mountains and everything Denver has to offer. I feel so lucky to live here. I am married and the mom to two amazing young men. We like to ski, hike and visit National Parks together. We also like to play cards, like Canasta, and board games. Most of my family lives in Europe because my father is Spanish and my mother is German. I am able to speak Spanish fluently, which allows me to communicate easily with my Spanish speaking patients. I love my chosen specialty of anesthesia because the physiology and pharmacology is very interesting. Most of all, I like the undivided attention I can give my patients with the one on one care I provide at a critical point in their health.

Andrea Grilli

Job Titles:
  • Education / Medical School

Ann Hickey

Job Titles:
  • Member of the Board
  • Member of the VP, WCAS

Anna Weyand

Job Titles:
  • Education / Medical School

Arun Moorjani

Job Titles:
  • Member of the Board
  • Member of the Physician Partner

Ben Chang

Job Titles:
  • Member of the Central CO CGB

Ben Novy - CHRO

Job Titles:
  • Chief People Officer
  • Member of the Executive Leadership Team

Bill Priest - Chief Compliance Officer

Job Titles:
  • Chief Compliance Officer
  • Member of the Executive Leadership Team

Brad Isaacs

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Nevada

Brian Dressler

Brian Dressler, D.O. received his medical degree from UHS-COM in Kansas City, MO and completed his residency at Ohio Health where he served as Chief Resident. He joined MAPMC in 2007 and is the past Vice Chief at Cape Coral Hospital. He has served as Medical Director for OR/Endo at Cape Coral Hospital and also sits on the QI and Med Exec Committees. Brian is also chair of the Physician Compensation Committee.

Chris Hadley

Job Titles:
  • Member of the Board
  • Member of the Managing Director, Berkshire Partners

Dale Flowers - COO

Job Titles:
  • Chief Operating Officer
  • Member of the Executive Leadership Team

Daniel Krauss

Job Titles:
  • Chief and Chairman of the Department of Anesthesiology
Daniel Krauss, MD is the Chief and Chairman of the Department of Anesthesiology at the Golisano Children's Hospital of SW Florida, as well as Chairman and Vice-Chief of the Department of Anesthesiology at HealthPark Medical Center. He has also served on numerous committees including the Children's Hospital Medical Staff Quality Committee, Lee Memorial Health System PPT Steering Committee, and the HealthPark Hospital Surgical Services Process Improvement Committee . Dr. Krauss is board certified in Anesthesiology and Pediatric Anesthesiology, His clinical interests include cardiothoracic and pediatric anesthesia. He also earned the ASA's Certificate in Business Administration in 2013. Dr. Krauss completed his anesthesia training at the University of Rochester. He earned his medical degree from Wayne State University and completed his undergraduate studies at the University of Michigan.

David T. Vandewater

Job Titles:
  • Member of the Board
  • Member of the Chief Executive Officer, Anther Health Services

Dean Polce

Job Titles:
  • Member of the USAP - Washington / Dean Polce

Derek Schoppa

Job Titles:
  • Member of the Clinical Operations Committee
  • Vice Chair, USAP - Texas ( Gulf Coast )

Douglas Morgan

Job Titles:
  • Member of the Clinical Operations Committee
  • Chairman, Clinical Governance Board
  • Member of the USAP - Washington / Dean Polce

Dr. Christopher Thu

Job Titles:
  • Member of the Board
  • Member of the Clinical Operations Committee
  • Member of the Physician Partner
  • Member of the USAP - Texas ( Central )
Dr. Christopher Thu, M.D. is a Board Certified anesthesiologist and part of the leadership team at USAP Central Texas.

Edward Grady

Job Titles:
  • Member of the Southern CO CGB

Efren Cardenas

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Florida
  • President, North Florida

Gary Flores

Job Titles:
  • Member of the Board
  • Member of the Clinical Operations Committee
  • Chairman, USAP - Texas ( Gulf Coast )
  • Member of the Physician Partner

H. Kenneth Spalding

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Florida
  • President, Central Florida

Henri Acosta

Job Titles:
  • Chairman, Central Colorado CGB

J. Scott Holliday

Job Titles:
  • Member of the Board
  • Member of the Clinical Operations Committee
  • Member of the Physician Partner
  • Member of the USAP - Texas ( North )

Jean Waddle

Job Titles:
  • Chairman, Colorado State CGB

Jeff Buesing

Job Titles:
  • Member of the Southern CO CGB

Jeff Colon

Dr. Colon is a native of Puerto Rico. He attended the University of Chicago as an undergraduate student, and the University of Puerto Rico School of Medicine for both medical school and anesthesiology residency. He was an Assistant Professor in the Department of Anesthesiology at the University of Puerto Rico School of Medicine from 1992 until 1995, assigned to the Cardiothoracic Section. From 1995 to 1996 he was a Fellow in Pan Management at Wake Forest University's School of Medicine, Department of Anesthesiology; from 1996 to 1997 he was a Fellow in Cardiothoracic Anesthesia at Emory University's School of Medicine, Department of Anesthesiology. Subsequently he joined MAPMC. Southwest Florida and MAPMC have provided the Colon family a rich environment for wonderful personal and professional growth.

Jeffrey Lewis

Job Titles:
  • Member of the CO State CGB

Jesica Yanosik

Job Titles:
  • Vice Chair, Central CO CGB

Jim Hinton - Chairman

Job Titles:
  • Chairman of the Board

Jim Molinaro

Job Titles:
  • Chief CRNA, Central Florida

Joanne Donovan

Job Titles:
  • Platform Chief

Joanne Ramjohn

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Florida

Joel Braman

Job Titles:
  • Member of the Central CO CGB

John Longanecker

Job Titles:
  • Member of the Southern CO CGB

John Stimmler

Job Titles:
  • Member of the CO State CGB

Jonathan Fox

Job Titles:
  • Member of the CO State CGB

Keith Rodriguez

Job Titles:
  • Member of the CO State CGB

Kelly Stees

Job Titles:
  • Member of the Central CO CGB

Kevin Bauer

Job Titles:
  • Member of the CO State CGB

Kevin T. Kogut

Job Titles:
  • Chairman of the Quality Committee

Kimberly Harden

Job Titles:
  • Chairman, Southern Colorado CGB

Kurt Knauth

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Texas ( Central )

Kurt Markgraf

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Florida
  • President, Fort Myers

Len Wright - President

Job Titles:
  • Member of the Executive Leadership Team
  • President

Mac Axelrod

Job Titles:
  • Chief of Anesthesia, Central Florida

Marc Michelsen

Marc Michelsen,DO, is a board certified anesthesiologist. He completed his DO from Des Moines University and his residency at Virginia Commonwealth University. He currently is in his second year as the Chief of Anesthesiology at Lee Memorial Hospital and served the two years prior as Vice Chief.

Mary Fox

Job Titles:
  • Member of the CO State CGB

Matthew Fiegel

Job Titles:
  • Member of the Central CO CGB

Matthew Maloney

Job Titles:
  • Chief Clinical Officer
  • Member of the Executive Leadership Team

Matthew Rowan

Job Titles:
  • Member of the Central CO CGB

Melissa Esber

Job Titles:
  • Chief CRNA, Fort Myers

Michael Hurley

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the COC
  • Member of the USAP - Colorado

Michael Sebastian

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the COC
  • Member of the USAP - Colorado

Michaela Rhodes

Job Titles:
  • Member of the Southern CO CGB

Natasha Lake

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Texas ( Gulf Coast )

Omid Moayed

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Maryland

Paul Taheri

Job Titles:
  • Member of the Board
  • Member of the Operating Partner, WCAS

Ralph Gregg

Job Titles:
  • President of U.S. Anesthesia Partners
Ralph Gregg, M.D. is President of U.S. Anesthesia Partners, Fort Myers. He attended the University of Maryland School of Medicine, followed by an Anesthesia Residency at the University of Florida in Gainesville. He has practiced in Fort Myers for twenty-six years as part of Lee Health. He has served as President of the Lee County Medical Society and as Delegate to the Florida Medical Association. Dr. Gregg has held various leadership positions within the Hospital system, including Medical Staff President and Department of Surgery Chair. He specializes in Cardiac and Pediatric Anesthesia. He is Board Certified in Anesthesia and Pediatric Anesthesia.

Randy Giles

Job Titles:
  • Member of the Board
  • Member of the Chief Financial Officer, Change Healthcare

Richard Dutton

Job Titles:
  • Chief Quality Officer
  • Member of the Executive Leadership Team

Robert Coward - CEO

Job Titles:
  • Chief Executive Officer
  • Member of the Executive Leadership Team

Ronak Desai

Job Titles:
  • Member of the Clinical Operations Committee
  • Member of the USAP - Texas ( North )

Ryen Fons

Job Titles:
  • Member of the CO State CGB

Sam Spirn

Job Titles:
  • Member of the Board
  • Member of the Managing Director, Berkshire Partners

Scott Klein

Job Titles:
  • Member of the Central CO CGB

Steve Yi

Job Titles:
  • Chairman of Operations Committee

Thomas Swygert

Job Titles:
  • Member of the Board
  • Member of the Clinical Operations Committee
  • Member of the Physician Partner

Tyler McBee - CFO

Job Titles:
  • Chief Financial Officer
  • Member of the Executive Leadership Team

USAP-Washington Jobs

USAP-Washington physicians are highly trained, many with specialties in cardiac, neurologic, obstetric and pediatric anesthesia as well as intensive care medicine. We are a group of over one hundred board certified or board eligible physicians, CRNAs and ARNPs who share a commitment to exceeding our partners' and patients' expectations for safe, expert and caring administration of anesthetics.

William "Jonathan" Mayles

Job Titles:
  • Member of the Southern CO CGB

William Navarre

Job Titles:
  • Member of the Colorado State CGB