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Marsha Siebenmorgen, PHD, LP

Clinical Child & Adolescent Psychologist in Dallas, TX · enumerated 2014.

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

National Provider Identifier

1649670415

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Registry record

Entity type Individual (Type 1)
Name Marsha Siebenmorgen
Credential PHD, LP
Sex Female
Practice address 2222 Medical District Dr, Dallas, TX, 75235
Phone (214) 867-6923
Enumeration date Aug 29, 2014
Last updated in NPPES Mar 12, 2018

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 2567 (KS) Secondary
103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 37734 (TX) 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

Is NPI 1649670415 active?
Yes, as of the latest NPPES snapshot, NPI 1649670415 is active (record last updated 2018-03-12).
How do I verify Marsha Siebenmorgen's NPI record?
Cross-check NPI 1649670415 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-12.