Are you Mario L. Perez, D.O.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 9958 Sierra Ave., Fontana, CA 92335
About Dr. Perez
Mario L. Perez, D.O. practices internal medicine in Fontana, CA. Mario is also listed as specializing in pediatrics. The provider's National Provider Identifier (NPI) is 1376747204.
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) 427-3077
- Email not available
Practice Locations
9958 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 in Fontana 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Other 7
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Mario L. Perez?
Mario L. Perez 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
What is Mario L. Perez's address?
Mario L. Perez is listed at 9958 Sierra Ave., Fontana, CA 92335. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mario L. Perez?
The number on file is (909) 427-3077. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mario L. Perez's NPI number?
Mario L. Perez's National Provider Identifier is 1376747204. 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 Mario L. Perez train?
Mario L. Perez attended Other, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Mario L. Perez been practicing?
Mario L. Perez has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
Has Mario L. Perez confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mario L. Perez. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.