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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

William H. Cho, M.D.

Urology Physician in Green Valley, AZ · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1356316228

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Registry record

Entity type Individual (Type 1)
Name William H. Cho
Credential M.D.
Sex Male
Practice address Green Valley, AZ, 85614
Phone (520) 393-4863
Fax (833) 605-7237
Enumeration date Feb 22, 2006
Last updated in NPPES Mar 1, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 04-26098 (KS) Secondary
208800000X Urology Physician Allopathic & Osteopathic Physicians · License C42239 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
C42239 Other CA MEDICAL STATE LICENSE
059062 Other KS BLUE CROSS/BLUE SHIELD
340012687 Other KS RAILROAD MEDICARE
100185280B Medicaid KS -
497557 Medicaid AZ -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for William Cho?
The National Provider Identifier (NPI) for William Cho is 1356316228, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Cho practice?
The practice location on file with NPPES is in Green Valley, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-01.