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Office
2186 Geary Blvd Ste 314
San Francisco, CA 94115Phone+1 415-929-0600Fax+1 415-929-8106
Education & Training
Temple University HospitalFellowship, Gastroenterology, 1974 - 1975- Temple University HospitalResidency, Internal Medicine, 1973 - 1974
Creighton University School of Medicine/Maricopa Medical Center (Phoenix)Residency, Internal Medicine, 1970 - 1972
Universidad Autonoma de GuadalajaraClass of 1969
Certifications & Licensure
CA State Medical License 1974 - 2025
AZ State Medical License 1972 - 2017
PA State Medical License Active through 1974- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Gastroenterology
Publications & Presentations
PubMed
- 151 citationsGastroesophageal (GE) scintiscanning to detect and quantitate GE reflux.Robert S. Fisher, Leon S. Malmud, Gerald S. Roberts, Ira F. Lobis
Gastroenterology. 1976-03-01 - 57 citationsThe Lower Esophageal Sphincter as a Barrier to Gastroesophageal RefluxRobert S. Fisher, Leon S. Malmud, Gerald S. Roberts, Ira F. Lobis
Gastroenterology. 1977-01-01 - Endoscopic polypectomy from the afferent duodenal loopGerald S. Roberts, Ira F. Lobis, Anthony R. Gennaro, Stanley H. Lorber
Gastrointestinal Endoscopy. 1976-02-01
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