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Summary
Dr. Ronald Koretz has practiced gastroenterology and internal medicine for 59 years and is affiliated with UCLA Santa Monica Medical Center and Olive View UCLA Medical Center. He earned his medical degree from the David Geffen School of Medicine at UCLA and sees patients in Sylmar and Santa Monica, California.
Overview based on verified provider data
Quick Facts
- 59 years of experience
- speaks English
- David Geffen School Of Medicine At Ucla
- 2 specialties
- 1 area of expertise
- 2 hospital affiliations
- 2 office locations
- Male
Office Locations
Dr. Ronald Lee Koretz has 2 locationsCompare with Similar Doctors
 |  |  |  |
| Dr. Ronald Lee Koretz | Ji Soo Choi, APRN | Jan Seiler, APRN | Rebecca Humphries, APRN |
| Gastroenterology | Gastroenterology | Gastroenterology | Gastroenterology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 59 Years of Experience | |||
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English | Speaks English | Speaks English |
| Sylmar , CA | Sacramento , CA | Montgomery , AL | Sacramento , CA |
| Med School: David Geffen School Of Medicine At Ucla | Med School: New York University | Med School: Georgia State University | Med School: Emory University |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Ronald Lee Koretz
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Ronald Lee Koretz has the following 2 specialties
Specialty Expertise
Dr. Ronald Lee Koretz has the following area of expertise
Certifications, License, & Education
59 Years Experience
Dr. Ronald Lee Koretz 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 David Geffen School Of Medicine At Ucla in 1967.
NPI Number
Dr. Koretz's NPI number is 1265465579.
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Frequently Asked Questions
- Is Dr. Ronald Koretz accepting new patients?
- Dr. Ronald Koretz has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- What languages does Dr. Ronald Koretz speak?
- Dr. Ronald Koretz speaks English.
- Does Dr. Ronald Koretz accept my insurance?
- You can see the insurance plans that Dr. Ronald Koretz accepts on their Vitals profile.
- Does Dr. Ronald Koretz accept virtual/telehealth appointments?
- Dr. Ronald Koretz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Which hospitals is Dr. Ronald Koretz affiliated with?
- Dr. Ronald Koretz is affiliated with Ucla Santa Monica Medical Center and Olive View Ucla Medical Center.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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