NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Sivan So, BCBA

Behavior Analyst in Sammamish, WA · enumerated 2020.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1205463577

Verified

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Registry record

Entity type Individual (Type 1)
Name Sivan So
Credential BCBA
Sex Female
Practice address Sammamish, WA, 98074
Phone (805) 668-8961
Fax (208) 416-6922
Enumeration date Mar 25, 2020
Last updated in NPPES Mar 25, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License BA61054733 (WA) Primary

Other identifiers

Identifier Type State Issuer
BA61054733 Other WA WASHINGTON DEPARTMENT OF HEALTH
1-20-41787 Other - B.A.C.B.

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1205463577 active?
Yes, as of the latest NPPES snapshot, NPI 1205463577 is active (record last updated 2020-03-25).
How do I verify Sivan So's NPI record?
Cross-check NPI 1205463577 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-25.