Vicente Lam Siu, MD Primary Specialty: Internal Medicine Languages Spoken: Cantonese, English, Spanish Affiliations Shannon Clinic - Beauregard Education Undergraduate University of Puerto RicoRio Piedras, PR Medical School University of Puerto RicoSan Juan, PR Residency San Juan City HospitalSan Juan, PR Ratings 769 Ratings, 101 Comments 07/12/2026 Dr Lm is very kind and follows thru 07/09/2026 My doctor is simply the best. 06/19/2026 He is trustworthy and exceptional. 06/13/2026 Doctor is very caring and listening to all my medical questions I might have, his Amazing Show More