DR. WILLIAM HSU
NPI 1194822072
Dentist - General Practice in San Jose, CA

Q: What is William Hsu's NPI number?

The NPI number for William Hsu is 1194822072. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Q: What is William Hsu's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: Is William Hsu enrolled in Medicare?

No. William Hsu has opted out of Medicare through February 11, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for William Hsu was last updated on May 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since September 20, 2006Opted out of Medicare · through Feb 11, 2028

5710 CAHALAN AVE # 9, SAN JOSE, CA 95123(408) 226-1300 Get Directions Write a Review

NPPES record last updated: May 3, 2010. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. William Hsu NPPES

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

DR. WILLIAM HSU (NPI 1194822072) is an individual general practice provider in San Jose, California, licensed in California (52992) and active in the NPI registry since September 2006. He has opted out of Medicare through February 11, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1194822072

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. WILLIAM HSU

Location Address5710 CAHALAN AVE # 9San Jose, CA 95123-3010

Mailing Address1151 Valley Quail CirSan Jose, CA 95120-4128

Phone(408) 226-1300

Sole ProprietorNo

Enumeration DateSeptember 20, 2006

Last NPPES UpdateMay 3, 2010

✔ NPI 1194822072 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in CA · 52992

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

5710 CAHALAN AVE # 9, San Jose, CA 95123

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Humana.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

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Opted out of Medicare

Dr. William Hsu has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from February 11, 2016 through February 11, 2028.

Opt-Out Effective DateFebruary 11, 2016

Opt-Out In Effect ThroughFebruary 11, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95123 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

$106.47 typical visit price

range $70.37 – $206.04

Typical copayment $26.61 (range $17.59 – $51.51)

Most-billed visit code 99203

Established Patient

$86.56 typical visit price

range $23.96 – $169.60

Typical copayment $21.64 (range $5.99 – $42.40)

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.

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 Hsu's NPI number?

The NPI number for William Hsu is 1194822072. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is William Hsu located?

William Hsu practices at 5710 Cahalan Ave # 9, San Jose, CA 95123. The listed phone number is (408) 226-1300.

What is William Hsu's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Is William Hsu enrolled in Medicare?

No. William Hsu has opted out of Medicare through February 11, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

What insurance does William Hsu accept?

Health plans from Humana list William Hsu 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 William Hsu was last updated on May 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.