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STEPHEN DELEONARDIS
NPI 1043620891
Counselor - Addiction (Substance Use Disorder) in Ontario, CA

Active since May 02, 2014
125 W F ST STE 101, ONTARIO, CA 91762(909) 986-4550 Get Directions Write a Review

NPPES record last updated: May 2, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Stephen Deleonardis NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHEN DELEONARDIS (NPI 1043620891) is an individual addiction (substance use disorder) provider in Ontario, California and active in the NPI registry since May 2014.

NPPES Registry Identity

NPI1043620891
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameSTEPHEN DELEONARDIS
Location Address125 W F ST STE 101Ontario, CA 91762-3201
Mailing Address125 W F St Ste 101Ontario, CA 91762-3201 · (909) 986-4550
Phone(909) 986-4550
Sole ProprietorNo
Enumeration DateMay 2, 2014
✔ NPI 1043620891 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
125 W F ST STE 101, Ontario, CA 91762
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MATY SALL
Counselor (Addiction (Substance Use Disorder))
125 W F ST STE 101
ONTARIO, CA 91762
San Bernardino County (909) 986-4550
LORENA CHANG
Counselor (Addiction (Substance Use Disorder))
125 W F ST STE 101
ONTARIO, CA 91762
San Bernardino County (909) 986-4550
MELISSA V CERVANTES
Counselor (Addiction (Substance Use Disorder))
125 W F ST STE 101
ONTARIO, CA 91762
San Bernardino County (909) 563-7076
LAURA AMADOR
Counselor (Addiction (Substance Use Disorder))
125 W F ST STE 101
ONTARIO, CA 91762
San Bernardino County (909) 986-4550
MICHELLE HARDY LPT
Licensed Psychiatric Technician
125 W F ST STE 101
ONTARIO, CA 91762
San Bernardino County (909) 563-7076
LAUREN BRIGGS
Counselor (Addiction (Substance Use Disorder))
125 W F ST STE 101
ONTARIO, CA 91762
San Bernardino County (909) 986-4550
MS. GLORIA MARIE GUTIERREZ
Counselor (Addiction (Substance Use Disorder))
125 W F ST STE 101
ONTARIO, CA 91762
San Bernardino County (909) 986-4550
CANDICE DIVERS
Counselor (Addiction (Substance Use Disorder))
125 W F ST STE 101
ONTARIO, CA 91762
San Bernardino County (909) 623-6391

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Deleonardis's NPI number?

The NPI number for Stephen Deleonardis is 1043620891. It was assigned to this individual provider in the NPPES registry on May 2, 2014.

Where is Stephen Deleonardis located?

Stephen Deleonardis practices at 125 W F St Ste 101, Ontario, CA 91762. The listed phone number is (909) 986-4550.

What is Stephen Deleonardis's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Stephen Deleonardis was last updated on May 2, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.