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MR. SAU THONG
NPI 1629603972
Family Medicine in Ontario, CA

Active since March 06, 2020PECOS Enrolled
1109 W FRANCIS ST APT D, ONTARIO, CA 91762(909) 896-9292 Get Directions Write a Review

NPPES record last updated: March 6, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Mr. Sau Thong NPPES

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

MR. SAU THONG (NPI 1629603972) is an individual family medicine provider in Ontario, California, licensed in California (95013862) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1629603972
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameMR. SAU THONG
Location Address1109 W FRANCIS ST APT DOntario, CA 91762-6188
Mailing Address1109 W Francis St Apt DOntario, CA 91762-6188 · (909) 896-9292
Phone(909) 896-9292
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMarch 6, 2020
NPPES CertifiedMarch 6, 2020
✔ NPI 1629603972 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · 95013862
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1109 W FRANCIS ST APT D, Ontario, CA 91762
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Sau Thong is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8628413192
PECOS Enrollment IDI20260527003100
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Sau Thong reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Molina Healthcare Of California
4.2 mi
Family Medicine
887 E SECOND ST
Pomona, CA 91766
  • Reassigned Medicare billing, California enrollment
  • 339 clinicians in this Medicare group
NPI 1932214228 (909) 620-7769
Central Health Plan Of California, Inc.
9.9 mi
Health Maintenance Organization
1540 BRIDGEGATE DR
Diamond Bar, CA 91765
  • Reassigned Medicare billing, California enrollment
  • 283 clinicians in this Medicare group
NPI 1386714772 (626) 388-2390
Molina Healthcare Of Washington, Inc
978 mi
Family Medicine
21540 30TH DR SE STE 400
Bothell, WA 98021
  • Reassigned Medicare billing, Washington enrollment
  • 207 clinicians in this Medicare group
NPI 1659897163 (888) 562-5442

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91762 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
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Sau Thong's NPI number?

The NPI number for Sau Thong is 1629603972. It was assigned to this individual provider in the NPPES registry on March 6, 2020.

Where is Sau Thong located?

Sau Thong practices at 1109 W Francis St Apt D, Ontario, CA 91762. The listed phone number is (909) 896-9292.

What is Sau Thong's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Sau Thong enrolled in Medicare?

Yes. Sau Thong is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sau Thong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sau Thong reassigns Medicare benefits to 3 organizations: Molina Healthcare Of California (Pomona, CA), Central Health Plan Of California, Inc. (Diamond Bar, CA) and Molina Healthcare Of Washington, Inc (Bothell, WA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sau Thong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sau Thong was last updated on March 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.