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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 30 days.

MR. TROY ANTHONY LITTLEJOHN
NPI 1639090400
Counselor in Phillips Ranch, CA

Active since July 24, 2026
420 LUCERA CT APT 203, PHILLIPS RANCH, CA 91766(909) 525-3698 Get Directions Write a Review

NPPES record added: July 24, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mr. Troy Anthony Littlejohn NPPES

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

MR. TROY ANTHONY LITTLEJOHN (NPI 1639090400) is an individual counselor in Phillips Ranch, California, licensed in California (163549) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1639090400
Entity TypeIndividualMale
Primary Taxonomy101Y00000X
Provider Legal NameMR. TROY ANTHONY LITTLEJOHN
Location Address420 LUCERA CT APT 203Phillips Ranch, CA 91766-6807
Mailing Address420 Lucera Ct Apt 203Phillips Ranch, CA 91766-6807
Phone(909) 525-3698
Sole ProprietorYes
Enumeration DateJuly 24, 2026
NPPES CertifiedJuly 24, 2026
✔ NPI 1639090400 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselorBehavioral Health & Social Service Providers
Taxonomy Code101Y00000X
License✔ Licensed in CA · 163549
Definition

A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

420 LUCERA CT APT 203, Phillips Ranch, CA 91766
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 Troy Littlejohn's NPI number?

The NPI number for Troy Littlejohn is 1639090400. It was assigned to this individual provider in the NPPES registry on July 24, 2026.

Where is Troy Littlejohn located?

Troy Littlejohn practices at 420 Lucera Ct Apt 203, Phillips Ranch, CA 91766. The listed phone number is (909) 525-3698.

What is Troy Littlejohn's specialty?

The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.

When was this NPI record last updated?

The NPPES record for Troy Littlejohn was last updated on July 24, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.