4.5
11 Ratings with 1 written Review

Overview based on verified provider data
![]() | ![]() | ![]() | ![]() |
| Dr. Ralph Laurence Peterson, MD | Dr. Joo Hwang | Dr. Aparna Goel | Dr. John Clarke |
| Gastroenterology | Gastroenterology | Gastroenterology | Gastroenterology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 48 Years of Experience | 29 Years of Experience | 17 Years of Experience | 27 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks Spanish, Vietnamese, English | Speaks English, Spanish | Speaks English | |
| Oakland , CA | Palo Alto , CA | Palo Alto , 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: Sidney Kimmel Medical College At Thomas Jefferson University | Med School: Columbia University College Of Physicians & Surgeons |
Current Profile | View Profile | View Profile | View Profile |
Dr. Ralph Laurence Peterson holds an active medical license in the state of California.
Medical Doctor with an active medical license in the state of California that expires in 2026.
Completed their residency at Dc General Hospital.
Graduated from Howard University College Of Medicine in 1978.
Dr. Peterson's NPI number is 1851311104.










Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.