Physician Profile
Roger L. Ong, MD
Unclaimed ProfileAbout Dr. Ong
Based in Harbor City, CA, Roger L. Ong, MD is listed in the NPI registry under internal medicine. Roger graduated from University of California, Geffen School of Medicine in 1993.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (310) 325-5111
- Email not available
Practice Locations
25825 VERMONT AVE
Harbor City, CA 90710
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 21 related providers in 3 groups
Other internal medicines in Harbor City 5
Same specialty, same city.
Trained at University of California, Geffen School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at University of California, Geffen School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Ong's specialty?
Dr. Ong is an internal medicine in Harbor City, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where can I find Dr. Ong?
Dr. Ong is listed at 25825 VERMONT AVE, Harbor City, CA 90710. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ong?
The number on file is (310) 325-5111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Ong?
Dr. Ong's National Provider Identifier is 1881761799. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Ong's medical education?
Dr. Ong attended University of California, Geffen School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ong have?
Dr. Ong has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Ong's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ong. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.