Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Leonard F Szymczak, MSW LCSW

Clinical Social Worker in Monarch Beach, CA · enumerated 2006.

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

National Provider Identifier

1124192117

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Leonard F Szymczak

Credential MSW LCSW

Sex Male

Practice address Monarch Beach, CA, 92629

Phone (949) 443-4888

Enumeration date Nov 20, 2006

Last updated in NPPES Jan 29, 2015

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 149003726 (IL) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License LCS 23713 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
01632058	Other	IL	BLUE CROSS BLUE SHIELD

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 Leonard Szymczak practice?

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

What is the NPI number for Leonard Szymczak?

The National Provider Identifier (NPI) for Leonard Szymczak is 1124192117, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-29.