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

MS. Leanna Lynn Halvorsen

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1871348326

MS. Leanna Lynn Halvorsen is an Addiction (Substance Use Disorder) Counselor in Santa Rosa, California. Licensed in California. Registered with an NPI since 2024.

Licensed in
CA
In the registry since
2024

Practice location Address checks out

540 Middle Rincon Rd
Santa Rosa, CA 95409-3107
Phone: (707) 981-2500
Show map & directions

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

Specialties & licences

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

Record details

NPI number1871348326
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedApril 18, 2024
Last updated in NPPESApril 18, 2024
Certification dateApril 12, 2024

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