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Edit this profileAt a glance
- 9961 Sierra Ave, Fontana, CA 92335
About Dr. Leong
The NPI registry lists John Leong, DO as a student in an organized health care education program, in Fontana, CA. NPI 1851896773 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (833) 574-2273
- Email not available
Practice Locations
9961 SIERRA AVE
Fontana, CA 92335
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
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.
Other medical trainees in Fontana 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 2018 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Leong specialize in?
Dr. Leong is a medical trainee in Fontana, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Student in an Organized Health Care Education Program”.
NPI registry
Where is Dr. Leong located?
Dr. Leong is listed at 9961 Sierra Ave, Fontana, CA 92335. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Leong's phone number?
The number on file is (833) 574-2273. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Leong?
Dr. Leong's National Provider Identifier is 1851896773. 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
Where did Dr. Leong go to medical school?
Dr. Leong attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Leong have?
Dr. Leong has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Leong's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Leong. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.