Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Kristi Marie O'Callahan, MSED.

Specialist in Washingtonville, NY · enumerated 2013.

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

National Provider Identifier

1538408687

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Registry record

Entity type Individual (Type 1)

Name Mrs. Kristi Marie O'Callahan

Credential MSED.

Sex Female

Practice address 31 Revere Cir, Washingtonville, NY, 10992

Phone (845) 518-0506

Enumeration date Feb 10, 2013

Last updated in NPPES Feb 10, 2013

Taxonomy & licenses

174400000X 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

Where does Kristi O'Callahan practice?

The practice location on file with NPPES is in Washingtonville, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Kristi O'Callahan?

The National Provider Identifier (NPI) for Kristi O'Callahan is 1538408687, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-10.