Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Anthony Mark Leonardi, PHD

Professional Counselor in Waterbury, CT · enumerated 2005.

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

National Provider Identifier

1811979370

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Registry record

Entity type Individual (Type 1)

Name Mr. Anthony Mark Leonardi

Credential PHD

Sex Male

Practice address 64 Robbins St, Crisis Intervention Center, Waterbury, CT, 06708

Phone (203) 573-6500

Fax (203) 573-7007

Enumeration date Nov 18, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 001037 (CT) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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.

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Frequently asked questions

How do I verify Anthony Leonardi's NPI record?

Cross-check NPI 1811979370 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811979370 active?

Yes, as of the latest NPPES snapshot, NPI 1811979370 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.