Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alison A Steffensen, PSYD
Psychologist in Woodland, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689792707
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Registry record
Entity type Individual (Type 1)
Name Alison A Steffensen
Credential PSYD
Sex Female
Practice address 137 N Cottonwood Street, Woodland, CA, 95695
Phone (916) 459-0654
Fax (530) 666-8633
Enumeration date Mar 27, 2007
Last updated in NPPES Apr 2, 2014
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY22381 (CA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD credential
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Alison Steffensen?
Alison Steffensen is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Ronald Austin Marriage & Family Therapist · Woodland, CA NPI 1245369354 Yolo County Health and Human Services Agency Community/Behavioral Health Agency · Woodland, CA NPI 1144352220 Yolo County Health and Human Services Agency Community/Behavioral Health Agency · Woodland, CA NPI 1275747875 Alison Book Clinical Social Worker · Woodland, CA NPI 1700087616 Yolo County Health and Human Services Agency Community/Behavioral Health Agency · Woodland, CA NPI 1346446432
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-02.