Medical school: UNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated: 1983
NPI: 1063553378
Practice Locations (1)
WILLIAM D MOSIER MD INC A PROFESSIONAL MEDICAL CORPORATION
265 LAGUNA RD
FULLERTON, CA 928352515
7148712570
Source: CMS National Downloadable File, September 2026.