Provider Profile
Frank J. Sierra
Unclaimed ProfileAbout Frank Sierra
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Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Contact Information
- (925) 698-8052
- Email not available
Practice Locations
4610 X ST
Sacramento, CA 95817
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 specialists at this location 8
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 Frank J. Sierra specialize in?
Frank J. Sierra is a specialist in Sacramento, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Frank J. Sierra located?
Frank J. Sierra is listed at 4610 X St, Sacramento, CA 95817. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Frank J. Sierra's phone number?
The number on file is (925) 698-8052. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Frank J. Sierra's NPI number?
Frank J. Sierra's National Provider Identifier is 1588550818. 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 Frank J. Sierra been practicing?
Frank J. Sierra has 1+ years experience. Registered with an NPI since 2025. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Frank J. Sierra confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Frank J. Sierra. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.