Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Heather Lee Walker, PHD
Psychologist in Sedona, AZ · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1144587825
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Registry record
Entity type Individual (Type 1)
Name Dr. Heather Lee Walker
Credential PHD
Sex Female
Practice address 150 Sombart Ln Apt 105, Sedona, AZ, 86336
Phone (818) 325-9799
Enumeration date Apr 18, 2012
Last updated in NPPES Jun 16, 2022
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 30088 (CA) Secondary
103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD 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
Where does Heather Walker practice?
The practice location on file with NPPES is in Sedona, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Heather Walker?
The National Provider Identifier (NPI) for Heather Walker is 1144587825, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-16.