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Edit this profileAt a glance
- 9961 Sierra Ave, Fontana, CA 92335
About Dr. Quan
Based in Fontana, CA, Alex T. Quan, MD is listed in the NPI registry under internal medicine. Alex graduated from Temple University School of Medicine in 1999. NPI 1659442630 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
- (909) 427-3910
- Email not available
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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.
Other internists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 22 related providers in 3 groups
Other internists in Fontana 6
Same specialty, same city.
Trained at Temple University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Temple University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Quan specialize in?
Dr. Quan is an internist in Fontana, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Quan located?
Dr. Quan 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. Quan's phone number?
The number on file is (909) 427-3910. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Quan's NPI number?
Dr. Quan's National Provider Identifier is 1659442630. 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. Quan go to medical school?
Dr. Quan attended Temple University School of Medicine, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Quan been practicing?
Dr. Quan has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
Has Dr. Quan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Quan. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.