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

Nancy Lynn Sierra

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1215427968

Nancy Lynn Sierra is an Addiction (Substance Use Disorder) Counselor in San Francisco, California. Registered with an NPI since 2018.

In the registry since
2018
Specialties on file
2

Practice location Address checks out

1563 Mission St
San Francisco, CA 94103-2543
Phone: (415) 662-3700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Community Health Worker (primary) Taxonomy 172V00000X
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X

Record details

NPI number1215427968
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMay 17, 2018
Last updated in NPPESNovember 6, 2023
Certification dateNovember 6, 2023

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