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

Marcus Munroe Griffin, CRT

Certified Respiratory Therapist in Talihina, OK · enumerated 2009.

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

National Provider Identifier

1023259710

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Registry record

Entity type Individual (Type 1)

Name Marcus Munroe Griffin

Credential CRT

Sex Male

Practice address Talihina, OK, 74571

Phone (918) 567-7000

Fax (918) 567-7113

Enumeration date Mar 10, 2009

Last updated in NPPES Mar 10, 2009

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

Taxonomy & licenses

227800000X Certified Respiratory Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2271 (OK) 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.

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Frequently asked questions

What specialty is Marcus Griffin?

Marcus Griffin is registered in NPPES with the primary taxonomy of Certified Respiratory Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-10.