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MR. HAROLD L JEFFERSON
NPI 1649552936
Day Training/Habilitation Specialist in Oakland, CA

Active since September 13, 2011
2540 CHARLESTON ST, OAKLAND DAY TREATMENT, OAKLAND, CA 94602(510) 531-3666(510) 531-0691 Get Directions Write a Review

NPPES record last updated: June 6, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 6, 2025, May 19, 2025, May 30, 2023 (3 updates tracked since 2023).

About Mr. Harold L Jefferson NPPES

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

MR. HAROLD L JEFFERSON (NPI 1649552936) is an individual day training/habilitation specialist in Oakland, California and active in the NPI registry since September 2011.

NPPES Registry Identity

NPI1649552936
Entity TypeIndividualMale
Primary Taxonomy373H00000X
Provider Legal NameMR. HAROLD L JEFFERSON
Location Address2540 CHARLESTON ST, OAKLAND DAY TREATMENTOakland, CA 94602-2508
Mailing Address2828 Ford StOakland, CA 94601-2114 · (510) 407-6667 · Fax (510) 531-0691
Phone(510) 531-3666
Fax(510) 531-0691
Sole ProprietorYes
Enumeration DateSeptember 13, 2011
Last NPPES UpdateJune 6, 20253 updates tracked since enumeration
NPPES CertifiedJune 6, 2025
✔ NPI 1649552936 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.
2540 CHARLESTON ST, Oakland, CA 94602
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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.

MRS. SARA LOUISE MCKINNON
Marriage & Family Therapist
2540 CHARLESTON ST
OAKLAND, CA 94602
Alameda County (510) 220-2548
MICHAEL ERWIN CLARK JR.
Marriage & Family Therapist
2540 CHARLESTON ST
OAKLAND, CA 94602
Alameda County (510) 531-7551
RENALD EDWARDS JR.
Counselor
2540 CHARLESTON ST
OAKLAND, CA 94602
Alameda County (510) 531-3666
MS. DIANE MCCULLOUGH
Marriage & Family Therapist
2540 CHARLESTON ST
OAKLAND, CA 94602
Alameda County (510) 531-7551
KRISTIN MICHELLE WAGNER LCSW
Social Worker (Clinical)
2540 CHARLESTON ST
OAKLAND, CA 94602
Alameda County (510) 531-3666
ADRIANA ZAPIEN
Day Training/Habilitation Specialist
2540 CHARLESTON ST
OAKLAND, CA 94602
Alameda County (510) 913-4696
JANIS CAVICCHIA
Marriage & Family Therapist
2540 CHARLESTON ST
OAKLAND, CA 94602
Alameda County (510) 531-7551
JOSE DANIEL HERNANDEZ B.A.
Student in an Organized Health Care Education/Training Program
2540 CHARLESTON ST
OAKLAND, CA 94602
Alameda County (510) 531-7551

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 Harold Jefferson's NPI number?

The NPI number for Harold Jefferson is 1649552936. It was assigned to this individual provider in the NPPES registry on September 13, 2011.

Where is Harold Jefferson located?

Harold Jefferson practices at 2540 Charleston St Oakland Day Treatment, Oakland, CA 94602. The listed phone number is (510) 531-3666.

What is Harold Jefferson'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 Harold Jefferson was last updated on June 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.