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

Dr. John H Leng, DDS

Q: What is the NPI number for John Leng?

The National Provider Identifier (NPI) for John Leng is 1760593990, a Type 1 (individual) record in the CMS NPPES registry.

General Practice Dentistry in Colville, WA · enumerated 2006.

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

National Provider Identifier

1760593990

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Registry record

Entity type Individual (Type 1)

Name Dr. John H Leng

Credential DDS

Sex Male

Practice address Colville, WA, 99114

Phone (509) 684-5066

Fax (509) 684-4953

Enumeration date Aug 31, 2006

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DE00007393 (WA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

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 Leng?

The National Provider Identifier (NPI) for John Leng is 1760593990, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Leng practice?

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

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