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Edit this profileAt a glance
- 9961 Sierra Ave, Fontana, CA 92335
About Dr. Alonzo
Based in Fontana, CA, Leopoldo J. Alonzo, MD is listed in the NPI registry under obstetrics & gynecology. NPI 1730306218 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
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 OB-GYNs at this location 3
Same specialty, same street address — most likely the same department or group.
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.
Common questions
What does Dr. Alonzo specialize in?
Dr. Alonzo is an OB-GYN in Fontana, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
Where is Dr. Alonzo located?
Dr. Alonzo 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. Alonzo'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. Alonzo's NPI number?
Dr. Alonzo's National Provider Identifier is 1730306218. 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
How long has Dr. Alonzo been practicing?
Dr. Alonzo has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Alonzo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Alonzo. If this is you, claiming it is free.
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