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Aspen Valley Hospital
0401 Castle Creek Road
Aspen, CO 81611
Ann Mass M.D. received her B.A. from Barnard College. She graduated A.O.A. (honor medical society) from Harvard Medical School. Dr. Mass completed her training in Internal Medicine at Harbor General U.C.L.A. where she was chief resident in medicine and did fellowship work in infectious diseases. She has had a long-standing practice in internal medicine and is on the active medical staff at Aspen Valley Hospital. Dr. Mass is certified in clinical densitometry and is the only private practitioner in Aspen who reads bone density studies at Aspen Valley Hospital. Dr. Mass has been appointed to and serves on the Performance Review Committee at Aspen Valley Hospital. Dr. Mass is certified in BLS, ACLS and FCCS.