Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Arwen Michelle Marker, PHD
Psychologist in Salt Lake City, UT · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821720954
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Registry record
Entity type Individual (Type 1)
Name Dr. Arwen Michelle Marker
Credential PHD
Sex Female
Practice address 81 N Mario Capecchi Dr, Salt Lake City, UT, 84113
Phone (801) 662-5594
Fax (801) 662-6756
Enumeration date Jun 28, 2022
Last updated in NPPES Jan 23, 2023
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License 12417605-2501 (UT) Primary
103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 12417605-2501 (UT) 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
What is the NPI number for Arwen Marker?
The National Provider Identifier (NPI) for Arwen Marker is 1821720954, a Type 1 (individual) record in the CMS NPPES registry.
Where does Arwen Marker practice?
The practice location on file with NPPES is in Salt Lake City, UT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-23.