Douglas Hagan, M.D.
- Medical School: University of Iowa College of Medicine
- Residency: University of Wisconsin Hospital and Clinics
- Memberships: American Society of Anesthesiologists; Colorado Society of Anesthesiologists; Society of Cardiovascular Anesthesiologists; American Medical Association; Colorado Medical Society; Arapahoe Medical Society; American Board of Anesthesiology
- Board Certified: American Board of Anesthesiology