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
GASTROENTEROLOGY
Graduated: 1982
Also: INTERNAL MEDICINE
NPI: 1811099534
GREGORY J WIENER M D PROFESSIONAL CORPORATION
353 CHURCH AVE, SUITE A
CHULA VISTA, CA 919103906
6195858883
Source: CMS National Downloadable File, September 2026.