MS. SARA ESTHER OLKON LSW
NPI 1336846385
Social Worker in Mill Valley, CA

Q: What is Sara Olkon's NPI number?

The NPI number for Sara Olkon is 1336846385. It was assigned to this individual provider in the NPPES registry on February 9, 2023.

Q: What is Sara Olkon's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Q: When was this NPI record last updated?

The NPPES record for Sara Olkon was last updated on December 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since February 09, 2023

35 MILLER AVE, MILL VALLEY, CA 94941(312) 685-2890 Get Directions Write a Review

NPPES record last updated: December 29, 2025. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Dec 29, 2025, May 16, 2024, Feb 9, 2023 (3 updates tracked since 2023).

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About Ms. Sara Esther Olkon Lsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. SARA ESTHER OLKON LSW (NPI 1336846385) is an individual social worker in Mill Valley, California, licensed in Illinois (150.110273) and active in the NPI registry since February 2023.

NPPES Registry Identity

NPI1336846385

Entity TypeIndividualFemale

Primary Taxonomy104100000X

Provider Legal NameMS. SARA ESTHER OLKONCredential: LSW

Location Address35 MILLER AVEMill Valley, CA 94941-1903

Mailing Address35 Miller AveMill Valley, CA 94941-1903 · (312) 685-2890

Phone(312) 685-2890

Sole ProprietorYes

Enumeration DateFebruary 9, 2023

Last NPPES UpdateDecember 29, 20253 updates tracked since enumeration

NPPES CertifiedDecember 29, 2025

✔ NPI 1336846385 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

License✔ Licensed in IL · 150.110273

Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

35 MILLER AVE, Mill Valley, CA 94941

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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SHIRA RACHEL FISCHER MS

Speech-Language Pathologist

35 MILLER AVE
MILL VALLEY, CA 94941

Marin County (415) 475-9732

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sara Olkon's NPI number?

The NPI number for Sara Olkon is 1336846385. It was assigned to this individual provider in the NPPES registry on February 9, 2023.

Where is Sara Olkon located?

Sara Olkon practices at 35 Miller Ave, Mill Valley, CA 94941. The listed phone number is (312) 685-2890.

What is Sara Olkon's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Sara Olkon was last updated on December 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.