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

Leonard Adam Williamson, RADT

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1902461809

Leonard Adam Williamson, RADT is an Addiction (Substance Use Disorder) Counselor in Indio, California. Licensed in California. Registered with an NPI since 2019.

Licensed in
CA
In the registry since
2019
Specialties on file
2

Practice location Address checks out

81557 Dr Carreon Blvd Ste C9
Indio, CA 92201-5562
Phone: (760) 391-6999
Fax: (760) 391-6998
Show map & directions

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

Specialties & licences

Case Manager/Care Coordinator (primary) Taxonomy 171M00000X
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence R1316270718 (CA)

Record details

NPI number1902461809
Entity typeIndividual (Type 1)
GenderMale
Credentials RADT
Sole proprietorNo
NPI enumeratedMay 6, 2019
Last updated in NPPESDecember 16, 2019
Certification dateDecember 16, 2019

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