Get to know Dr. Ralph L. Peterson and the MacArthur Gastroenterology team, along with our approach to digestive and liver health care.
Gastroenterologist
MacArthur Gastroenterology Inc.10520 MacArthur Blvd.Oakland, CA 94605
(510) 562-7467
Four ways we support your digestive and liver health, each with a dedicated page.
Comprehensive digestive health, screening, and treatment.
Physician-supervised weight loss, GLP-1 support, and coaching.
Fast, non-invasive liver fat and stiffness screening.
A physician-supervised program combining medical evaluation, personalized coaching, and compounded GLP-1 support when clinically appropriate.
Our in-office ultrasound-based scan measures liver fat and stiffness in minutes, with no needles, no sedation, and results the same day.
Reach our front desk directly, or send a message and our team will follow up.
(510) 562-7467 ext 1Call our front desk
Send us a messageContact form, response within 1 business day
10520 MacArthur Blvd., Oakland, CA 94605Get directions
View your balance and make a payment anytime, no portal login required.
Billing questions: (510) 562-7467
Message your care team, view test results, request refills, and manage appointments from your secure patient account.
New patient? Ask our front desk for portal access at your first visit.
Select the service you’re here for below, Weight Management Consultation or Fatty Liver Scan, then choose an available date and time. All appointments are in person at our Oakland office, and payment is collected at the time of scheduling.