3.5
2 Ratings
Summary
Dr. Gregory Marshall is a urologist who earned his medical degree from the Keck School of Medicine at the University of Southern California. With 39 years of experience in urology, he has built extensive expertise in diagnosing and treating conditions affecting the urinary system and male reproductive health.
Dr. Marshall practices at Kaiser Permanente Walnut Creek Medical Center and sees patients across multiple locations including Walnut Creek, Martinez, and Antioch, California. He specializes in treating acute urinary retention and urge incontinence, helping patients regain comfort and control. His practice includes virtual care consultations, pelvic ultrasounds, and comprehensive urine testing to accurately diagnose urological conditions. Patients have given him an average rating of 3.5 on Vitals.
Dr. Marshall practices at Kaiser Permanente Walnut Creek Medical Center and sees patients across multiple locations including Walnut Creek, Martinez, and Antioch, California. He specializes in treating acute urinary retention and urge incontinence, helping patients regain comfort and control. His practice includes virtual care consultations, pelvic ultrasounds, and comprehensive urine testing to accurately diagnose urological conditions. Patients have given him an average rating of 3.5 on Vitals.
Overview based on verified provider data
Quick Facts
- 39 years of experience
- 10 insurance plans accepted
- Keck School Of Medicine Of The University Of Southern California
- 1 specialty
- 7 areas of expertise
- 1 board certification
- 1 hospital affiliation
- 4 office locations
- Male
Office Locations
Dr. Gregory Alan Marshall has 4 locationsKaiser Permanente Walnut Creek Medical Center
1425 S Main StWalnut Creek, CA 94596 Tel: (925) 295-4000
Martinez Va Outpatient Clinic
150 Muir RdMartinez, CA 94553 Tel: (925) 372-2000
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  | |
| Dr. Gregory Alan Marshall, MD | Dr. Kris Prado, MD | Dr. Alan Thong, MD, MPH | Dr. Tony Chen, MD |
| Urology | Urology | Urology | Urology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 39 Years of Experience | 14 Years of Experience | 18 Years of Experience | 12 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Walnut Creek , CA | Palo Alto , CA | San Jose , CA | Emeryville , CA |
| Med School: Keck School Of Medicine Of The University Of Southern California | Med School: University Of California San Francisco School Of Medicine | Med School: UNIVERSITY OF CHICAGO DIVISION OF THE BIOLOGICAL SCIENCES THE PRITZKER SCHOOL OF MEDICINE | Med School: University Of California San Diego School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Gregory Alan Marshall
Medical Specialties
Dr. Gregory Alan Marshall has the following specialty
Specialty Expertise
Dr. Gregory Alan Marshall has the following 7 areas of expertise
Certifications, License, & Education
39 Years Experience
Dr. Gregory Alan Marshall holds an expired medical license in the state of California.
Medical License
Medical Doctor with an expired medical license in the state of California that expired in 2026.
Education & Training
Medical School
Graduated from Keck School Of Medicine Of The University Of Southern California in 1987.
NPI Number
Dr. Marshall's NPI number is 1437237526.
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Frequently Asked Questions
- How can I make an appointment with Dr. Gregory Marshall?
- You can find contact information for Dr. Gregory Marshall here on Vitals.
- Where is Dr. Gregory Marshall's office located?
- Dr. Gregory Marshall's office is located at 1425 S Main St, Walnut Creek, CA, 94596.
- Does Dr. Gregory Marshall accept my insurance?
- You can see the insurance plans that Dr. Gregory Marshall accepts on their Vitals profile.
- Is Dr. Gregory Marshall accepting new patients?
- Dr. Gregory Marshall has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Which hospitals is Dr. Gregory Marshall affiliated with?
- Dr. Gregory Marshall is affiliated with Kaiser Permanente Walnut Creek Medical Center.
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