100 S. Citrus Avenue, Suite #201 • Covina, CA 91723 (626) 967-1337 | Fax (626) 967-1330 Richard Pak, D.D.S.EndodontistColumbia UniversityRichard Pak, D.D.S.EndodontistJohn Lee, D.M.D.Board-Certified EndodontistResidency: University of the Pacific Dental: Tufts UniversityJohn Lee, D.M.D.Board-Certified Endodontist