Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John Hsiang-Yeou Wang, MD

Q: What is the NPI number for John Wang?

The National Provider Identifier (NPI) for John Wang is 1558466375, a Type 1 (individual) record in the CMS NPPES registry.

Surgical Critical Care Physician in Stony Brook, NY · enumerated 2006.

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

National Provider Identifier

1558466375

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Registry record

Entity type Individual (Type 1)

Name Mr. John Hsiang-Yeou Wang

Credential MD

Sex Male

Practice address Nicolls Rd and Health Sciences Dr Intersection, Stony Brook University Hospital, Hsc T18-020, Stony Brook, NY, 11794

Phone (631) 444-1045

Enumeration date Sep 14, 2006

Last updated in NPPES Aug 1, 2007

Taxonomy & licenses

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License A91085 (CA) Secondary

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License 224706 (NY) Primary

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License 224706 (NY) Secondary

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
00A910850	Medicaid	CA	—

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does John Wang practice?

The practice location on file with NPPES is in Stony Brook, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Wang?

The National Provider Identifier (NPI) for John Wang is 1558466375, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-01.