WILLIAM EARL MCNICHOLL
NPI 1013685502
Counselor - Addiction (Substance Use Disorder) in Vista, CA

Active since August 31, 2021
733 S SANTA FE AVE, VISTA, CA 92083(760) 945-5290 Get Directions Write a Review

NPPES record last updated: May 6, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 6, 2025, Nov 7, 2023 (2 updates tracked since 2023).

About William Earl Mcnicholl NPPES

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

WILLIAM EARL MCNICHOLL (NPI 1013685502) is an individual addiction (substance use disorder) provider in Vista, California and active in the NPI registry since August 2021. He maintains a secondary practice location in El Cajon.

NPPES Registry Identity

NPI1013685502
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameWILLIAM EARL MCNICHOLL
Location Address733 S SANTA FE AVEVista, CA 92083-5939
Mailing Address733 S Santa Fe AveVista, CA 92083-5939 · (760) 945-5290
Sole ProprietorNo
Enumeration DateAugust 31, 2021
Last NPPES UpdateMay 6, 20252 updates tracked since enumeration
NPPES CertifiedMay 6, 2025
NPI 1013685502 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
733 S SANTA FE AVE, Vista, CA 92083

Secondary Practice Location 1

Location 11400 N Johnson AveEl Cajon, CA 92020-1650 · Phone (619) 442-0277

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Addiction (Substance Use Disorder))
733 S SANTA FE AVE
VISTA, CA 92083
Substance Abuse Rehabilitation Facility
733 S SANTA FE AVE
VISTA, CA 92083
Counselor (Addiction (Substance Use Disorder))
733 S SANTA FE AVE
VISTA, CA 92083
Counselor (Addiction (Substance Use Disorder))
733 S SANTA FE AVE
VISTA, CA 92083
Counselor (Addiction (Substance Use Disorder))
733 S SANTA FE AVE
VISTA, CA 92083

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 William Mcnicholl's NPI number?

The NPI number for William Mcnicholl is 1013685502. It was assigned to this individual provider in the NPPES registry on August 31, 2021.

Where is William Mcnicholl located?

William Mcnicholl practices at 733 S Santa Fe Ave, Vista, CA 92083. The listed phone number is (760) 945-5290.

What is William Mcnicholl'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 William Mcnicholl was last updated on May 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.