Loading provider…
Loading provider…
Urology Physician in Walnut Creek, CA
NPI: 1437237526Primary Practice Location
JOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS
1601 Ygnacio Valley Rd, Walnut Creek, CA
Primary Employer
Martinez VAMC
va.gov
HQ Phone
Get MD Gregory's Phone Numberphone_androidMobile
Get MD Gregory's MobileLooking to connect with more Physicians?
Dmand AI gives you access to real-time firmographics, buying signals, org charts, and decision-makers - helping your GTM teams prioritize accounts, personalize outreach with AI-driven automation, and close deals faster.
Get Started for Freearrow_outwardCA State Medical License
CA State Medical License
1989 - 2026

American Board of Urology
Urology
Keck School of Medicine of USC
keck.usc.edu
Medical School
Until 1987
UCSF School of Medicine
medschool.ucsf.edu
Residency • Surgery
1987 - 1989
Renal Trauma: Re-Evaluation of the Indications for Radiographic Assessment
Authors: Gary Nicolaisen, Peter Carroll
Journal: J Urol
Substance abuse-related spontaneous bladder rupture: report of 2 cases and review of the literature.
Authors: Marshall, G A, Dixon, C M, McAninch, J W
Journal: J Urol
Improved hemodynamic response after long-term intracavernous injection for impotence
Authors: Marshall, G A, Breza, J, Lue, T F
Journal: Urology