NPI Portal NPI Lookup & Verification

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

Michael J Gentiluomo

Addiction (Substance Use Disorder) Counselor in Huntington Beach, CA · enumerated 2016 · practices at Surf City Recovery.

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

National Provider Identifier

1225587850

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Registry record

Entity type Individual (Type 1)
Name Michael J Gentiluomo
Sex Male
Practice address Huntington Beach, CA, 92648
Phone (714) 841-3863
Enumeration date Sep 23, 2016
Last updated in NPPES Sep 23, 2016

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 6327-R (CA) 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.

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Frequently asked questions

How do I verify Michael Gentiluomo's NPI record?
Cross-check NPI 1225587850 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1225587850 active?
Yes, as of the latest NPPES snapshot, NPI 1225587850 is active (record last updated 2016-09-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-23.