Provider Profile
Josefina Sierra
Unclaimed ProfileAbout Josefina Sierra
Josefina Sierra is a clinical social worker practicing in Ontario, CA. This provider record is associated with NPI 1063781128.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Contact Information
- (909) 986-7111
- Email not available
Practice Locations
317 W F ST
Ontario, CA 91762
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 clinical social workers at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
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 — 8 related providers in 1 group
Common questions
What does Josefina Sierra specialize in?
Josefina Sierra is a clinical social worker in Ontario, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Josefina Sierra located?
Josefina Sierra is listed at 317 W F St, Ontario, CA 91762. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Josefina Sierra's phone number?
The number on file is (909) 986-7111. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Josefina Sierra's NPI number?
Josefina Sierra's National Provider Identifier is 1063781128. 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 Josefina Sierra been practicing?
Josefina Sierra has 15+ years experience. Registered with an NPI since 2011. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Josefina Sierra confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Josefina Sierra. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.