Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Patti Leahy, LCSW

Clinical Social Worker in Merrillville, IN · enumerated 2007.

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

National Provider Identifier

1073719001

Verified

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Registry record

Entity type Individual (Type 1)

Name Patti Leahy

Credential LCSW

Sex Female

Practice address 8555 Taft St., Merrillville, IN, 46410

Phone (219) 769-4005

Fax (219) 769-2508

Enumeration date Jun 26, 2007

Last updated in NPPES Feb 15, 2012

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 149003721 (IL) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149003721 (IL) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 34005948A (IN) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier	Type	State	Issuer
000000657519	Other	IN	ANTHEM

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 1073719001 active?

Yes, as of the latest NPPES snapshot, NPI 1073719001 is active (record last updated 2012-02-15).

How do I verify Patti Leahy's NPI record?

Cross-check NPI 1073719001 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-15.