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John Y Peng, MD

Internal Medicine Physician in Lynnwood, WA · enumerated 2006.

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

National Provider Identifier

1669485447

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Registry record

Entity type Individual (Type 1)
Name John Y Peng
Credential MD
Sex Male
Practice address 19116 33rd Ave W, Lynnwood, WA, 98036
Phone (425) 771-7500
Fax (425) 712-7903
Enumeration date Aug 14, 2006
Last updated in NPPES Feb 1, 2013

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD00037612 (WA) 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
110207377 Other WA RAILROAD MEDICARE
0039581 Other WA LABOR & INDUSTRY
3328PE Other WA BLUE SHIELD
US0818663 Other WA AETNA/USHC SPECIALIST
8254336 Medicaid WA -

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

Where does John Peng practice?
The practice location on file with NPPES is in Lynnwood, WA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Peng?
The National Provider Identifier (NPI) for John Peng is 1669485447, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-01.