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

Prof. Roger Dare Blocker, MIHL

Rural Health Clinic/Center in San Marcos, TX · enumerated 2015.

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

National Provider Identifier

1023494390

Verified

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Registry record

Entity type Individual (Type 1)

Name Prof. Roger Dare Blocker

Credential MIHL

Sex Male

Practice address San Marcos, TX, 78666

Phone (325) 656-1482

Enumeration date Aug 10, 2015

Last updated in NPPES Aug 10, 2015

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

Taxonomy & licenses

261QR1300X Rural Health Clinic/Center Ambulatory Health Care Facilities Primary

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 is the NPI number for Roger Blocker?

The National Provider Identifier (NPI) for Roger Blocker is 1023494390, a Type 1 (individual) record in the CMS NPPES registry.

Where does Roger Blocker practice?

The practice location on file with NPPES is in San Marcos, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-08-10.