Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Michael Bollenbacher, Od & Associates, PC

Optometrist in Boulder, CO · enumerated 2006 · authorized official Michael Bollenbacher, President.

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

National Provider Identifier

1689689374

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Registry record

Entity type Organization (Type 2)

Legal business name Michael Bollenbacher, Od & Associates, PC

Other name <Unavail>

Practice address 2525 Arapahoe Ave, Suite E23, Boulder, CO, 80302

Phone (303) 444-1405

Fax (303) 413-9421

Enumeration date Jul 30, 2006

Last updated in NPPES Dec 29, 2007

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 2008 (CO) Primary

Authorized official

Name Michael Bollenbacher

Title President

Phone (303) 444-1405

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

Where is Michael Bollenbacher, Od & Associates, PC located?

The practice location on file with NPPES is in Boulder, CO.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-12-29. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-29.