Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Sardelis

Peer Specialist in Seward, AK · enumerated 2026.

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

National Provider Identifier

1548195928

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Registry record

Entity type Individual (Type 1)

Name Mark Sardelis

Sex Male

Practice address Po Box 1045, Seward, AK, 99664

Phone (907) 224-5257

Fax (907) 224-7081

Enumeration date Jun 16, 2026

Last updated in NPPES Jun 16, 2026

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.

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Frequently asked questions

How do I verify Mark Sardelis's NPI record?

Cross-check NPI 1548195928 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1548195928 active?

Yes, as of the latest NPPES snapshot, NPI 1548195928 is active (record last updated 2026-06-16).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-16.