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

Daniel Mark Sanderson, PH.D.

Clinical Child & Adolescent Psychologist in St George, UT · enumerated 2012 · practices at Mark D. Clayton Lcsw PC.

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

National Provider Identifier

1669731790

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Registry record

Entity type Individual (Type 1)
Name Daniel Mark Sanderson
Credential PH.D.
Sex Male
Practice address St George, UT, 84770
Phone (435) 862-8273
Fax (435) 275-4256
Enumeration date May 9, 2012
Last updated in NPPES May 9, 2012

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

Taxonomy & licenses

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 317584-2501 (UT) Primary
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.

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Frequently asked questions

How do I verify Daniel Sanderson's NPI record?
Cross-check NPI 1669731790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1669731790 active?
Yes, as of the latest NPPES snapshot, NPI 1669731790 is active (record last updated 2012-05-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-09.