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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. JOHN STEVEN CARLIN JR.
NPI 1932845302
Social Worker in Riverside, CA

Active since May 09, 2022
3499 10TH ST, RIVERSIDE, CA 92501(951) 715-5050 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 6, 2026, Jul 29, 2026, Jul 20, 2026 and 2 more (5 updates tracked since 2022).

About Mr. John Steven Carlin Jr. NPPES

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

MR. JOHN STEVEN CARLIN JR. (NPI 1932845302) is an individual social worker in Riverside, California, licensed in California (139807) and active in the NPI registry since May 2022.

NPPES Registry Identity

NPI1932845302
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameMR. JOHN STEVEN CARLIN JR.
Location Address3499 10TH STRiverside, CA 92501-3617
Mailing Address301 Victoria StCosta Mesa, CA 92627-1995 · (949) 574-3367
Phone(951) 715-5050
Sole ProprietorYes
Enumeration DateMay 9, 2022
Last NPPES UpdateAugust 6, 20265 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
✔ NPI 1932845302 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License✔ Licensed in CA · 139807
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Also ListedSocial Worker · ClinicalTaxonomy 1041C0700X
3499 10TH ST, Riverside, CA 92501
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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.

CRISTINA FLORES HUBB
Social Worker (Clinical)
3499 10TH ST
RIVERSIDE, CA 92501
Riverside County (951) 955-1560
MS. CRISTINA MARGARITA ZAMORA GARCIA LMFT
Marriage & Family Therapist
3499 10TH ST
RIVERSIDE, CA 92501
Riverside County (951) 358-4544
MS. SCHUYLER JOHNSON
Case Manager/Care Coordinator
3499 10TH ST
RIVERSIDE, CA 92501
Riverside County (951) 955-4635
AARON ISRAEL SANCHEZ
Peer Specialist
3499 10TH ST
RIVERSIDE, CA 92501
Riverside County (951) 955-1560
REASIA AUSTIN
Case Manager/Care Coordinator
3499 10TH ST
RIVERSIDE, CA 92501
Riverside County (951) 955-1560
MISS LADETTE PATRICE LETTMAN RADT
Case Manager/Care Coordinator
3499 10TH ST
RIVERSIDE, CA 92501
Riverside County (951) 955-1560
ANDREA ELENA ALCANTARA
Rehabilitation Practitioner
3499 10TH ST
RIVERSIDE, CA 92501
Riverside County (951) 358-7309
DARLENE ARTEAGA
Rehabilitation Practitioner
3499 10TH ST
RIVERSIDE, CA 92501
Riverside County (951) 955-1560

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 John Carlin's NPI number?

The NPI number for John Carlin is 1932845302. It was assigned to this individual provider in the NPPES registry on May 9, 2022.

Where is John Carlin located?

John Carlin practices at 3499 10th St, Riverside, CA 92501. The listed phone number is (951) 715-5050.

What is John Carlin's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for John Carlin was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.