Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Christopher Charles Yack, B.S., M.S.

Specialist in Malverne, NY · enumerated 2012.

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

National Provider Identifier

1972868529

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Registry record

Entity type Individual (Type 1)

Name Mr. Christopher Charles Yack

Credential B.S., M.S.

Sex Male

Practice address 17 Park Ave, Malverne, NY, 11565

Phone (516) 837-3343

Fax (516) 837-3343

Enumeration date Jul 10, 2012

Last updated in NPPES Jul 10, 2012

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 2279246 (NY) 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

Is NPI 1972868529 active?

Yes, as of the latest NPPES snapshot, NPI 1972868529 is active (record last updated 2012-07-10).

How do I verify Christopher Yack's NPI record?

Cross-check NPI 1972868529 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-10.