4.5
11 Ratings with 1 written Review
Summary
Dr. Ralph Peterson is a gastroenterologist and internal medicine physician with nearly five decades of experience treating digestive disorders and comprehensive medical care. He earned his medical degree from Howard University College of Medicine and completed his residency at DC General Hospital. With 48 years in practice, Dr. Peterson brings extensive expertise to complex gastrointestinal conditions. He is fluent in English, Spanish, and Vietnamese.
Dr. Peterson practices at multiple locations throughout Oakland and San Francisco, including affiliations with Wilma Chan Highland Hospital Campus, Kaiser Permanente Oakland Medical Center, and Alta Bates Summit Medical Center Summit Campus. He specializes in treating abdominal pain and nonalcoholic fatty liver disease, while also addressing high cholesterol in children and teens. His procedural expertise includes performing colonoscopies, lower GI endoscopies, and laparoscopic procedures. Patients rate Dr. Peterson 4.6 out of 5 on Vitals.
Dr. Peterson practices at multiple locations throughout Oakland and San Francisco, including affiliations with Wilma Chan Highland Hospital Campus, Kaiser Permanente Oakland Medical Center, and Alta Bates Summit Medical Center Summit Campus. He specializes in treating abdominal pain and nonalcoholic fatty liver disease, while also addressing high cholesterol in children and teens. His procedural expertise includes performing colonoscopies, lower GI endoscopies, and laparoscopic procedures. Patients rate Dr. Peterson 4.6 out of 5 on Vitals.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 48 years of experience
- speaks English, Spanish, Vietnamese
- Dc General Hospital
- 1 written review
- 2 specialties
- 9 areas of expertise
- 3 hospital affiliations
- 4 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. Ralph Laurence Peterson has 4 locationsMacarthur Gastroenterology Inc
10520 MacArthur BlvdOakland, CA 94605 Tel: (510) 562-7467
Mon9:00 am - 3:00 pm
Tue9:00 am - 3:00 pm
Wed9:00 am - 3:00 pm
Thu9:00 am - 3:00 pm
Fri9:00 am - 3:00 pm
SatClosed
SunClosed
South Of Market Health Center
229 7th StSan Francisco, CA 94103 Tel: (415) 503-6000
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 7:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 3:30 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. Ralph Laurence Peterson, MD | Dr. Joo Hwang | Dr. Kian Keyashian | Dr. Aparna Goel |
| Gastroenterology | Gastroenterology | Gastroenterology | Gastroenterology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 48 Years of Experience | 29 Years of Experience | 21 Years of Experience | 17 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English, Spanish, Vietnamese | Speaks English, Spanish | Speaks English | |
| Oakland , CA | Palo Alto , CA | Stanford , CA | Palo Alto , CA |
| Med School: Howard University College Of Medicine | Med School: Univ Of Chicago Division Of Biological Sciences Pritzker School Of Medicine | Med School: University Of California San Francisco School Of Medicine | Med School: Sidney Kimmel Medical College At Thomas Jefferson University |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Ralph Laurence Peterson
Medical Specialties
Dr. Ralph Laurence Peterson has the following 2 specialties
Specialty Expertise
Dr. Ralph Laurence Peterson has the following 9 areas of expertise
Certifications, License, & Education
48 Years Experience
Dr. Ralph Laurence Peterson holds an active medical license in the state of California.
Medical License
Medical Doctor with an active medical license in the state of California that expired in 2026.
Education & Training
Residency
Completed their residency at Dc General Hospital.
Medical School
Graduated from Howard University College Of Medicine in 1978.
NPI Number
Dr. Peterson's NPI number is 1851311104.
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Frequently Asked Questions
- Is Dr. Ralph Peterson accepting new patients?
- Dr. Ralph Peterson is accepting new patients on Vitals. View Dr. Ralph Peterson's profile on Vitals to make an appointment.
- Does Dr. Ralph Peterson accept virtual/telehealth appointments?
- Dr. Ralph Peterson has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Does Dr. Ralph Peterson accept my insurance?
- You can see the insurance plans that Dr. Ralph Peterson accepts on their Vitals profile.
- What languages does Dr. Ralph Peterson speak?
- Dr. Ralph Peterson speaks English, Spanish, and Vietnamese.
- Where is Dr. Ralph Peterson's office located?
- Dr. Ralph Peterson's office is located at 10520 MacArthur Blvd, Oakland, CA, 94605.
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