Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Earl McNicholl

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1013685502

William Earl McNicholl is an Addiction (Substance Use Disorder) Counselor in Vista, California. Works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2021

Practice location Address checks out

733 S Santa Fe Ave
Vista, CA 92083-5939
Phone: (760) 945-5290
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1400 N Johnson Ave, El Cajon, CA 92020-1650 — (619) 442-0277

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X (CA)

Record details

NPI number1013685502
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedAugust 31, 2021
Last updated in NPPESMay 6, 2025
Certification dateMay 6, 2025
Mailing address733 S Santa Fe Ave, Vista, CA 92083-5939

Other providers in Vista