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STEPHAN MATTHEW DIEHL
NPI 1144921370
Counselor - Addiction (Substance Use Disorder) in San Diego, CA

Active since March 14, 2023
4161 MARLBOROUGH AVE, SAN DIEGO, CA 92105(619) 282-7274 Get Directions Write a Review

NPPES record last updated: March 14, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Stephan Matthew Diehl NPPES

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

STEPHAN MATTHEW DIEHL (NPI 1144921370) is an individual addiction (substance use disorder) provider in San Diego, California, licensed in California (R1475590722) and active in the NPI registry since March 2023.

NPPES Registry Identity

NPI1144921370
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameSTEPHAN MATTHEW DIEHL
Location Address4161 MARLBOROUGH AVESan Diego, CA 92105-1412
Mailing Address4025 Camino Del Rio S Ste 207San Diego, CA 92108-4108 · (619) 297-5131
Phone(619) 282-7274
Sole ProprietorNo
Enumeration DateMarch 14, 2023
NPPES CertifiedMarch 14, 2023
✔ NPI 1144921370 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
License✔ Licensed in CA · R1475590722
4161 MARLBOROUGH AVE, San Diego, CA 92105
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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.

MICHAEL THOR HOOK
Counselor (Addiction (Substance Use Disorder))
4161 MARLBOROUGH AVE
SAN DIEGO, CA 92105
San Diego County (619) 282-7274
CHINETTA MONIQUE CHRISTIAN RADT
Counselor (Addiction (Substance Use Disorder))
4161 MARLBOROUGH AVE
SAN DIEGO, CA 92105
San Diego County (619) 282-7274
ANTHONY CASTILLE CAODC
Counselor (Addiction (Substance Use Disorder))
4161 MARLBOROUGH AVE
SAN DIEGO, CA 92105
San Diego County (619) 282-7274
MR. KELLY RICHARD MCCLANAHAN RADT
Counselor (Addiction (Substance Use Disorder))
4161 MARLBOROUGH AVE
SAN DIEGO, CA 92105
San Diego County (619) 282-7274
MR. DENNIS WAYNE BRIDWELL II SUDRC
Counselor (Addiction (Substance Use Disorder))
4161 MARLBOROUGH AVE
SAN DIEGO, CA 92105
San Diego County (619) 282-7274
CHRISTINA JANSON SUDRC
Counselor (Addiction (Substance Use Disorder))
4161 MARLBOROUGH AVE
SAN DIEGO, CA 92105
San Diego County (619) 282-7274
GIDGETT MONSIVAIS
Counselor (Addiction (Substance Use Disorder))
4161 MARLBOROUGH AVE
SAN DIEGO, CA 92105
San Diego County (619) 282-7274
KRISTINA ALVAREZ
Counselor (Professional)
4161 MARLBOROUGH AVE
SAN DIEGO, CA 92105
San Diego County (619) 282-7274

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 Stephan Diehl's NPI number?

The NPI number for Stephan Diehl is 1144921370. It was assigned to this individual provider in the NPPES registry on March 14, 2023.

Where is Stephan Diehl located?

Stephan Diehl practices at 4161 Marlborough Ave, San Diego, CA 92105. The listed phone number is (619) 282-7274.

What is Stephan Diehl'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 Stephan Diehl was last updated on March 14, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.