Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gerbholz-Vieregger DDS PC

Q: What type of organization is Gerbholz-Vieregger DDS PC?

Gerbholz-Vieregger DDS PC is registered in NPPES as a Dental Clinic/Center (its primary provider taxonomy).

Dental Clinic/Center in Castle Rock, CO · enumerated 2007 · authorized official Alan Gerbholz, Owner.

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

National Provider Identifier

1518160415

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Registry record

Entity type Organization (Type 2)

Legal business name Gerbholz-Vieregger DDS PC

Other name <Unavail>

Practice address 850 Happy Canyon Rd, Castle Rock, CO, 80108

Phone (303) 688-5705

Fax (303) 688-5731

Enumeration date Jun 7, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

261QD0000X Dental Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Alan Gerbholz

Title Owner

Phone (303) 688-5705

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 type of organization is Gerbholz-Vieregger DDS PC?

Gerbholz-Vieregger DDS PC is registered in NPPES as a Dental Clinic/Center (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.