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

Mark Dennis Piatt II

Peer Specialist in Yukon, OK · enumerated 2025.

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

National Provider Identifier

1780546010

Verified

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Registry record

Entity type Individual (Type 1)

Name Mark Dennis Piatt II

Sex Male

Practice address Yukon, OK, 73099

Phone (405) 600-7362

Enumeration date Nov 25, 2025

Last updated in NPPES Nov 25, 2025

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

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers 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

How do I verify Mark Piatt's NPI record?

Cross-check NPI 1780546010 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1780546010 active?

Yes, as of the latest NPPES snapshot, NPI 1780546010 is active (record last updated 2025-11-25).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-25.