Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gina O'Callaghan, LMSW

Social Worker in Perry Point, MD · enumerated 2016.

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

National Provider Identifier

1730540337

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Registry record

Entity type Individual (Type 1)

Name Gina O'Callaghan

Credential LMSW

Sex Female

Practice address Building 1 Ave C, Perry Point, MD, 21902

Phone (410) 658-0100

Fax (410) 658-0199

Enumeration date Mar 10, 2016

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License A3830 (MD) Secondary

104100000X Social Worker Behavioral Health & Social 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

Is NPI 1730540337 active?

Yes, as of the latest NPPES snapshot, NPI 1730540337 is active (record last updated 2022-07-21).

How do I verify Gina O'Callaghan's NPI record?

Cross-check NPI 1730540337 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 2022-07-21.