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

Kenneth Marlin Janssen

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1558118265

Kenneth Marlin Janssen is an Addiction (Substance Use Disorder) Counselor in San Francisco, California. Registered with an NPI since 2024.

In the registry since
2024

Practice location Address checks out

940 Howard St
San Francisco, CA 94103-4114
Phone: (415) 487-8067
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

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

Record details

NPI number1558118265
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMay 1, 2024
Last updated in NPPESMay 1, 2024
Certification dateApril 27, 2024

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