Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

M R Reference Laboratories

Q: What type of organization is M R Reference Laboratories?

M R Reference Laboratories is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

Clinical Medical Laboratory in Cayey, PR · enumerated 2009 · authorized official Marysel Rodriguez, Administrator.

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

National Provider Identifier

1275866964

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Registry record

Entity type Organization (Type 2)

Legal business name M R Reference Laboratories

Practice address 11 Ave Industrial, Cayey, PR, 00736

Phone (787) 738-7556

Fax (787) 738-1515

Enumeration date Sep 11, 2009

Last updated in NPPES Sep 11, 2009

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 005749 (PR) Primary

Authorized official

Name Marysel Rodriguez

Title Administrator

Phone (787) 653-5589

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 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.

What type of organization is M R Reference Laboratories?

M R Reference Laboratories is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-11.