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

William Lee Guth, DDS

Dentist in The Dalles, OR · enumerated 2005 · practices at Dalles Dental Care LLC.

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

National Provider Identifier

1720088040

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Registry record

Entity type Individual (Type 1)
Name William Lee Guth
Credential DDS
Sex Male
Practice address The Dalles, OR, 97058
Phone (541) 298-4411
Fax (541) 298-7798
Enumeration date Jul 28, 2005
Last updated in NPPES Jan 18, 2011

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

Taxonomy & licenses

122300000X Dentist Dental Providers · License D5892 (OR) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier Type State Issuer
150587 Medicaid OR -

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

How do I verify William Guth's NPI record?
Cross-check NPI 1720088040 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1720088040 active?
Yes, as of the latest NPPES snapshot, NPI 1720088040 is active (record last updated 2011-01-18).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-18.