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MARIA SIU D.O.
NPI 1144513862
Obstetrics & Gynecology in Pomona, CA

Active since May 27, 2011PECOS Enrolled
160 E ARTESIA ST STE 330, POMONA, CA 91767(909) 622-5654 Get Directions Write a Review

NPPES record last updated: May 8, 2018. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Maria Siu D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIA SIU D.O. (NPI 1144513862) is an individual obstetrics & gynecology provider in Pomona, California, licensed in California (20A13839) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS and maintains a secondary practice location in Ontario.

NPPES Registry Identity

NPI1144513862
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameMARIA SIUCredential: D.O.
Location Address160 E ARTESIA ST STE 330Pomona, CA 91767-2922
Mailing Address160 E Artesia St Ste 330Pomona, CA 91767-2922 · (909) 622-5654
Phone(909) 622-5654
Sole ProprietorYes
Enumeration DateMay 27, 2011
Last NPPES UpdateMay 8, 2018
✔ NPI 1144513862 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in CA · 20A13839✔ Licensed in MD · P26504
Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

160 E ARTESIA ST STE 330, Pomona, CA 91767
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Secondary Practice Location 1

Location 1756 N Euclid Ave Ste AOntario, CA 91762-2767 · Phone (909) 395-0030

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Maria Siu D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91767 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MAGGIE PHAM D.O.
Obstetrics & Gynecology (Obstetrics)
160 E ARTESIA ST STE 330
POMONA, CA 91767
Los Angeles County (909) 622-5654
KELLY GHISLAINE SMITH M.D.
Obstetrics & Gynecology
160 E ARTESIA ST STE 330
POMONA, CA 91767
Los Angeles County (909) 622-5654
DR. SIMMI P. DHALIWAL M.D.
Obstetrics & Gynecology
160 E ARTESIA ST STE 330
POMONA, CA 91767
Los Angeles County (909) 622-5654
MARIA SIU APC
Obstetrics & Gynecology
160 E ARTESIA ST STE 330
POMONA, CA 91767
Los Angeles County (909) 622-5654

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maria Siu's NPI number?

The NPI number for Maria Siu is 1144513862. It was assigned to this individual provider in the NPPES registry on May 27, 2011.

Where is Maria Siu located?

Maria Siu practices at 160 E Artesia St Ste 330, Pomona, CA 91767. The listed phone number is (909) 622-5654.

What is Maria Siu's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Maria Siu enrolled in Medicare?

Yes. Maria Siu is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Maria Siu was last updated on May 8, 2018. NPI Profile syncs with the weekly NPPES data releases published by CMS.