NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John J Yang, MD

Family Medicine Physician in Mequon, WI · enumerated 2006.

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

National Provider Identifier

1316979552

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John J Yang
Credential MD
Sex Male
Practice address 6425 W Mequon Road, Mequon, WI, 53092
Fax (262) 242-8927
Enumeration date Jul 7, 2006
Last updated in NPPES Apr 15, 2024

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 37090 (WI) 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
32209800 Medicaid WI -
P00609992 Other WI RR MEDICARE

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

What is the NPI number for John Yang?
The National Provider Identifier (NPI) for John Yang is 1316979552, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Yang practice?
The practice location on file with NPPES is in Mequon, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-15.