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WEST LA FOOT DOCTOR INC.
NPI 1437542784
Podiatrist - Foot & Ankle Surgery in San Dimas, CA

Active since March 11, 2015
425 W BONITA AVE STE 110, SAN DIMAS, CA 91773(909) 599-0981(909) 592-0738 Get Directions Write a Review

NPPES record last updated: May 5, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 5, 2021, Feb 10, 2020, Mar 28, 2016 (3 updates tracked since 2016).

About West La Foot Doctor Inc. NPPES

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

WEST LA FOOT DOCTOR INC. (NPI 1437542784), doing business as Tiongson Foot & Ankle Care Inc., is a healthcare organization registered as a foot & ankle surgery in San Dimas, California and active in the NPI registry since March 2015. The organization lists Jonathan Tiongson, Owner, as its authorized official.

NPPES Registry Identity

NPI1437542784
Entity TypeOrganization
Primary Taxonomy213ES0103X
Legal Business NameWEST LA FOOT DOCTOR INC.
Location Address425 W BONITA AVE STE 110San Dimas, CA 91773-2543
Mailing Address425 W Bonita Ave Ste 110San Dimas, CA 91773-2543 · (909) 599-0981 · Fax (909) 599-0738
Phone(909) 599-0981
Fax(909) 592-0738
Organization SubpartNo
Authorized OfficialJonathan TiongsonOwner · (310) 339-2947
Enumeration DateMarch 11, 2015
Last NPPES UpdateMay 5, 20213 updates tracked since enumeration
NPPES CertifiedMay 5, 2021
✔ NPI 1437542784 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPodiatrist · Foot & Ankle SurgeryPodiatric Medicine & Surgery Service Providers
Taxonomy Code213ES0103X
License✔ Licensed in CA · E4600
425 W BONITA AVE STE 110, San Dimas, CA 91773
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Other Names 1

Former Legal Business NameTiongson Foot & Ankle Care Inc.

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

West La Foot Doctor Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to West La Foot Doctor Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Jonathan Tiongson, DPM
Podiatry
NPI 1487607685
11633 SAN VICENTE BLVD SUITE 200
Los Angeles, CA 90049
(310) 442-1975
✔ PECOS✔ Accepts Medicare37 mi

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

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 West La Foot Doctor Inc.'s NPI number?

The NPI number for West La Foot Doctor Inc. is 1437542784. It was assigned to this organization in the NPPES registry on March 11, 2015. The provider was formerly known as Tiongson Foot & Ankle Care Inc..

Where is West La Foot Doctor Inc. located?

West La Foot Doctor Inc. is located at 425 W Bonita Ave Ste 110, San Dimas, CA 91773. The listed phone number is (909) 599-0981.

What is West La Foot Doctor Inc.'s specialty?

The primary specialty registered for this NPI is Podiatrist, specializing in Foot & Ankle Surgery, with taxonomy code 213ES0103X.

Is West La Foot Doctor Inc. enrolled in Medicare?

Yes. West La Foot Doctor Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through West La Foot Doctor Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Podiatry) reassigns their Medicare billing to West La Foot Doctor Inc.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for West La Foot Doctor Inc. was last updated on May 5, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.