HealthCareAtlasUSA

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

JOHN STEPHEN KELLOGG, MD

ALLERGY/IMMUNOLOGY

Medical school: TULANE UNIVERSITY SCHOOL OF MEDICINE

Graduated: 1993

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1932149697

Practice Locations (1)

SOUTH BAY ALLERGY AND ASTHMA GROUP INC

2211 MOORPARK AVE, SUITE 130

SAN JOSE, CA 951282655

4082861707

Source: CMS National Downloadable File, September 2026.

JOHN KELLOGG, MD | HealthCareAtlasUSA