William F. Erfling, M.D.

Internal Medicine, Gastroenterology *
2750 Broadway
Boulder, Co. 80304
Contact: (303) 440-3063
Web site: www.BoulderMedicalCenter.com
Email: Boulder County Medical Society
  • Internal Medicine: Cert. 1976
  • Gastroenterology*: Cert. 1978
  • M.D.: University of Missouri - 1973
  • Internship: University of Colorado - 1974
  • Residency: University of Colorado - 1976
  • Fellow: University of Colorado - 1978