Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Diana Blair Drvostep, D.D.S

Dentist in Tahlequah, OK · enumerated 2009.

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

National Provider Identifier

1962738328

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Registry record

Entity type Individual (Type 1)

Name Dr. Diana Blair Drvostep

Credential D.D.S

Sex Female

Practice address 19600 E Ross St, Tahlequah, OK, 74464

Phone (539) 234-1000

Fax (918) 453-1339

Enumeration date Oct 20, 2009

Last updated in NPPES Sep 16, 2021

Taxonomy & licenses

122300000X Dentist Dental Providers · License 6101 (OK) 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.

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Frequently asked questions

How do I verify Diana Drvostep's NPI record?

Cross-check NPI 1962738328 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1962738328 active?

Yes, as of the latest NPPES snapshot, NPI 1962738328 is active (record last updated 2021-09-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-16.