1964-1965

Intern in Medicine, Strong Memorial Hospital, Rochester, NY

1965-1966

Assistant Resident in Medicine, Strong Memorial Hospital, Rochester, NY

1968-1969

Resident in Medicine (II), University of California Hospitals, San Francisco, CA

1969-1970

Chief Resident in Medicine, University of California Hospitals (San Francisco General Hospital), San Francisco, CA

1970-1972

Fellow in Hematology, University of California, San Francisco, CA

1972-1976

Assistant Clinical Professor of Medicine, Laboratory Medicine, and Radiology (Nuclear Medicine), University of California, San Francisco, CA

1972-1974

Chief, Hematology Clinic, University of California Medical Center, San Francisco, CA

1974-1980

Director, Hematology & Oncology Clinics, University of California Medical Center, San Francisco, CA

1976-1983

Associate Clinical Professor of Medicine and Laboratory Medicine, University of California, San Francisco, CA

1989-1991

Director, Adult Bone Marrow Transplant Program, University of California Medical Center, San Francisco, CA

1975-2002

Director, Outpatient Transfusion Service, University of California Medical Center, San Francisco, CA

1980-2002

Director, Hematology/Oncology Faculty Practice, University of California Medical Center, San Francisco, CA

1983-2003

Clinical Professor of Medicine, University of California, San Francisco, CA

2003-present

Clinical Professor of Medicine Emeritus, University of California, San Francisco, CA

Military Service:

1966-1968

Senior Assistant Surgeon, U.S. Public Health Service (Heart Disease Control Program)

Edward Ageno Distinguished Professor of Hematology Oncology, UCSF