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Mark R & Barbara M Tholen

Optometrist in Dripping Springs, TX · enumerated 2007 · authorized official Barbara Tholen, Optometrist.

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

National Provider Identifier

1679757371

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Registry record

Entity type Organization (Type 2)
Legal business name Mark R & Barbara M Tholen
Other name <Unavail>
Practice address 1433 W Highway 290, Dripping Springs, TX, 78620
Phone (512) 858-1766
Fax (512) 858-1768
Enumeration date Dec 18, 2007
Last updated in NPPES Jan 11, 2011

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 3695TG (TX) Primary

Authorized official

Name Barbara Tholen
Title Optometrist
Phone (512) 858-1766

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 current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-01-11. Verify at npiregistry.cms.hhs.gov.
Where is Mark R & Barbara M Tholen located?
The practice location on file with NPPES is in Dripping Springs, TX.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-11.