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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.

MARCUS CLAYTON
NPI 1487366605
Day Training/Habilitation Specialist in Los Angeles, CA

Active since December 19, 2022
840 N AVENUE 66, LOS ANGELES, CA 90042(626) 395-7100 Get Directions Write a Review

NPPES record last updated: June 30, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 5, 2026, Jun 23, 2023, Dec 19, 2022 (3 updates tracked since 2022).

About Marcus Clayton NPPES

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

MARCUS CLAYTON (NPI 1487366605) is an individual day training/habilitation specialist in Los Angeles, California and active in the NPI registry since December 2022.

NPPES Registry Identity

NPI1487366605
Entity TypeIndividualMale
Primary Taxonomy373H00000X
Provider Legal NameMARCUS CLAYTON
Location Address840 N AVENUE 66Los Angeles, CA 90042-1508
Mailing Address840 N Avenue 66Los Angeles, CA 90042-1508 · (626) 395-7100
Phone(626) 395-7100
Sole ProprietorNo
Enumeration DateDecember 19, 2022
Last NPPES UpdateJune 30, 20263 updates tracked since enumeration
NPPES CertifiedJune 30, 2026
✔ NPI 1487366605 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDay Training/Habilitation SpecialistNursing Service Related Providers
Taxonomy Code373H00000X
Definition
Individuals experienced or trained in working with developmentally disabled individuals who need assistance in acquiring and maintaining life skills that enable them to cope more effectively with the demands of independent living.
840 N AVENUE 66, Los Angeles, CA 90042
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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.

DR. JENNIE M. MATHESS PSY.D.
Psychologist (Clinical)
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
RUBY A GARCIA LPT
Licensed Psychiatric Technician
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
ALICIA GUERRA
Rehabilitation Practitioner
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MS. ROMINA MONSERRAT TEJEDA LMFT
Marriage & Family Therapist
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MARISSA LEE LUBAG
Peer Specialist
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MAYRA MELGOZA
Social Worker (Clinical)
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
EVELYN AVILA
Social Worker
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100
MALIYA GUERCY
Licensed Psychiatric Technician
840 N AVENUE 66
LOS ANGELES, CA 90042
Los Angeles County (626) 395-7100

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 Marcus Clayton's NPI number?

The NPI number for Marcus Clayton is 1487366605. It was assigned to this individual provider in the NPPES registry on December 19, 2022.

Where is Marcus Clayton located?

Marcus Clayton practices at 840 N Avenue 66, Los Angeles, CA 90042. The listed phone number is (626) 395-7100.

What is Marcus Clayton's specialty?

The primary specialty registered for this NPI is Day Training/Habilitation Specialist with taxonomy code 373H00000X.

When was this NPI record last updated?

The NPPES record for Marcus Clayton was last updated on June 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 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.