JOSEPH K W HSU PROFESSIONAL CORPORATION
NPI 1538369152
Ophthalmology in Downey, CA

Q: What is Joseph K W Hsu Professional Corporation's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Active since July 22, 2007

8333 IOWA ST, #202, DOWNEY, CA 90241(562) 861-7291(562) 923-4617 Get Directions Write a Review

NPPES record last updated: March 20, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Joseph K W Hsu Professional Corporation NPPES

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

JOSEPH K W HSU PROFESSIONAL CORPORATION (NPI 1538369152) is a healthcare organization registered as an ophthalmology in Downey, California and active in the NPI registry since July 2007. The organization lists Joseph K W Hsu, Owner, as its authorized official.

NPPES Registry Identity

NPI1538369152

Entity TypeOrganization

Primary Taxonomy207W00000X

Legal Business NameJOSEPH K W HSU PROFESSIONAL CORPORATION

Location Address8333 IOWA ST, #202Downey, CA 90241-4994

Mailing Address8333 Iowa St, #202Downey, CA 90241-4994 · (562) 861-7291 · Fax (562) 923-4617

Phone(562) 861-7291

Fax(562) 923-4617

Organization SubpartNo

Authorized OfficialJoseph K W HsuOwner · (562) 861-7291

Enumeration DateJuly 22, 2007

Last NPPES UpdateMarch 20, 2012

✔ NPI 1538369152 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · A65768

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

8333 IOWA ST, Downey, CA 90241

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Other Identifiers 2

Medicare PINA065768ACA

Medicare UPINF98799CA

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Louisiana, Blue Cross Blue Shield of Wyoming.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joseph K W Hsu Professional Corporation 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 Joseph K W Hsu Professional Corporation, which bills Medicare for the services this clinician delivers.

Clinician (1)

Joseph Hsu, MD

Ophthalmology

NPI 1760584270

8333 IOWA ST #202
Downey, CA 90241

(562) 861-7291

✔ PECOS✔ Accepts MedicareSame address

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 Joseph K W Hsu Professional Corporation's NPI number?

The NPI number for Joseph K W Hsu Professional Corporation is 1538369152. It was assigned to this organization in the NPPES registry on July 22, 2007.

Where is Joseph K W Hsu Professional Corporation located?

Joseph K W Hsu Professional Corporation is located at 8333 Iowa St #202, Downey, CA 90241. The listed phone number is (562) 861-7291.

What is Joseph K W Hsu Professional Corporation's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Joseph K W Hsu Professional Corporation enrolled in Medicare?

Yes. Joseph K W Hsu Professional Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Joseph K W Hsu Professional Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to Joseph K W Hsu Professional Corporation. 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.

What insurance does Joseph K W Hsu Professional Corporation accept?

Health plans from Blue Cross Blue Shield of Wyoming and Blue Cross and Blue Shield of Louisiana list Joseph K W Hsu Professional Corporation as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Joseph K W Hsu Professional Corporation was last updated on March 20, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.