Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Muerk Internal Medicine Group

Q: What is the NPI number for Muerk Internal Medicine Group?

The NPI for Muerk Internal Medicine Group is 1528339900, a Type 2 (organization) record in the CMS NPPES registry.

Specialist in Fajardo, PR · enumerated 2012 · authorized official Jose Mues, Administration.

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

National Provider Identifier

1528339900

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Registry record

Entity type Organization (Type 2)

Legal business name Muerk Internal Medicine Group

Practice address 10 Calle Union E, Suite 108, Fajardo, PR, 00738

Phone (787) 860-5450

Fax (787) 860-5450

Enumeration date Jan 18, 2012

Last updated in NPPES Jan 19, 2012

Taxonomy & classification

174400000X Specialist Other Service Providers · License 8420 (PR) Primary

Authorized official

Name Jose Mues

Title Administration

Phone (787) 860-5450

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 Muerk Internal Medicine Group?

The NPI for Muerk Internal Medicine Group is 1528339900, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Muerk Internal Medicine Group?

NPPES lists Jose Mues (Administration) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-19.