Guardian Anesthesia Services -
Parker/Denver Anesthesiologists

Tanya S. Argo MD

Tony Keever M.D.

Mark Baller CRNA

Don Merrill M.D.

Sara Merrill M.D.

Scott Wurm M.D.

Dmitriy Panteleyev M.D.

Ryan Rathjen M.D.

Patrick Mullins M.D.

• Home
• Patient Information
• Our Services
• Staff Bios
• About Guardian
• Contact Us