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

Dr. Marilyn Janice Nelsen, PH.D.

Marriage & Family Therapist in Apex, NC · enumerated 2006.

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

National Provider Identifier

1578581609

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Registry record

Entity type Individual (Type 1)
Name Dr. Marilyn Janice Nelsen
Credential PH.D.
Sex Female
Practice address Apex, NC, 27502
Enumeration date Jul 17, 2006
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 1053 (NC) Primary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 36353 (CA) 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.

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Frequently asked questions

Where does Marilyn Nelsen practice?
The practice location on file with NPPES is in Apex, NC. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marilyn Nelsen?
The National Provider Identifier (NPI) for Marilyn Nelsen is 1578581609, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.