Physician Profile
Maria Siu, D.O.
Unclaimed ProfileAbout Dr. Siu
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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.
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) 622-5654
- Email not available
Practice Locations
160 E ARTESIA ST STE 330
Pomona, CA 91767
756 N Euclid Ave Ste A
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 OB-GYNs at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 7 related providers in 1 group
Common questions
What kind of doctor is Maria Siu?
Maria Siu is an OB-GYN in Pomona, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
What is Maria Siu's address?
Maria Siu is listed at 160 E Artesia St Ste 330, Pomona, CA 91767. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Maria Siu?
The number on file is (909) 622-5654. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Maria Siu's NPI number?
Maria Siu's National Provider Identifier is 1144513862. 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 Maria Siu been practicing?
Maria Siu 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 Maria Siu confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Maria Siu. 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.