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

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1134580475

Mr. William David Naylor is an Addiction (Substance Use Disorder) Counselor in El Monte, California. Practices as a sole proprietor and works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2016
Specialties on file
3
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Practice location Address checks out

3430 Cogswell Rd
El Monte, CA 91732-2785
Phone: (626) 453-3406
Fax: (626) 246-3433
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2307 W. 6th St., La, CA 90057 — (213) 351-2800

Specialties & licences

Case Manager/Care Coordinator (primary) Taxonomy 171M00000X (CA)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X
Case Manager/Care Coordinator Taxonomy 171M00000X

Record details

NPI number1134580475
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedMarch 15, 2016
Last updated in NPPESMarch 17, 2018
Mailing address1920 N Marianna Ave Apt 312, Los Angeles, CA 90032-4070

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