This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.
Doctors / CA
INFECTIOUS DISEASE
Graduated: 2001
NPI: 1457330797
J TREES RITTER, DO, INC
1551 BISHOP ST, SUITE 250
SAN LUIS OBISPO, CA 934014661
8055400689
Source: CMS National Downloadable File, September 2026.