Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor
Mr. Doron Willis
Marriage & Family Therapist in Tarzana, CA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1902332067
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Registry record
Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
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.
Frequently asked questions
Is NPI 1902332067 active?
How do I verify Doron Willis's NPI record?
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.