WILLIAM WENG-PING KO, M.D. A PROFESSIONAL CORP
NPI 1467643940
Clinic/Center - Ophthalmologic Surgery in San Gabriel, CA

Q: What is William Weng-Ping Ko, M.D. A Professional Corp's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ophthalmologic Surgery, with taxonomy code 261QS0132X.

Active since August 08, 2007

117 S MISSION DR, SAN GABRIEL, CA 91776(626) 284-2168(626) 284-7980 Get Directions Write a Review

NPPES record last updated: February 9, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About William Weng-ping Ko, M.d. A Professional Corp NPPES

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

WILLIAM WENG-PING KO, M.D. A PROFESSIONAL CORP (NPI 1467643940) is a healthcare organization registered as an ophthalmologic surgery in San Gabriel, California and active in the NPI registry since August 2007. The organization lists William Weng Ping Ko, President, as its authorized official.

NPPES Registry Identity

NPI1467643940

Entity TypeOrganization

Primary Taxonomy261QS0132X

Legal Business NameWILLIAM WENG-PING KO, M.D. A PROFESSIONAL CORP

Location Address117 S MISSION DRSan Gabriel, CA 91776-1101

Mailing Address117 S Mission DrSan Gabriel, CA 91776-1101 · (626) 284-2168 · Fax (626) 284-7980

Phone(626) 284-2168

Fax(626) 284-7980

Organization SubpartNo

Authorized OfficialWilliam Weng Ping KoPresident · (626) 284-2168

Enumeration DateAugust 8, 2007

Last NPPES UpdateFebruary 9, 2018

✔ NPI 1467643940 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Ophthalmologic SurgeryAmbulatory Health Care Facilities

Taxonomy Code261QS0132X

117 S MISSION DR, San Gabriel, CA 91776

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Weng-ping Ko, M.d. A Professional Corp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to William Weng-Ping Ko, M.D. A Professional Corp, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

William Ko, M.D.

Ophthalmology

NPI 1548268873

117 S MISSION DR
San Gabriel, CA 91776

(626) 284-2168

✔ PECOS✔ Accepts MedicareSame address

Amy Huang, O.D.

Optometry

NPI 1275799587

5601 DE SOTO AVE
Woodland Hills, CA 91367

(818) 719-4330

✔ PECOS✔ Accepts Medicare28 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 William Weng-Ping Ko, M.D. A Professional Corp's NPI number?

The NPI number for William Weng-Ping Ko, M.D. A Professional Corp is 1467643940. It was assigned to this organization in the NPPES registry on August 8, 2007.

Where is William Weng-Ping Ko, M.D. A Professional Corp located?

William Weng-Ping Ko, M.D. A Professional Corp is located at 117 S Mission Dr, San Gabriel, CA 91776. The listed phone number is (626) 284-2168.

What is William Weng-Ping Ko, M.D. A Professional Corp's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ophthalmologic Surgery, with taxonomy code 261QS0132X.

Is William Weng-Ping Ko, M.D. A Professional Corp enrolled in Medicare?

Yes. William Weng-Ping Ko, M.D. A Professional Corp is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through William Weng-Ping Ko, M.D. A Professional Corp?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to William Weng-Ping Ko, M.D. A Professional Corp, in Ophthalmology and Optometry. 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for William Weng-Ping Ko, M.D. A Professional Corp was last updated on February 9, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.