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Mrs. Mary Ann Horn, MSN, CRNP

Women's Health Nurse Practitioner in Norristown, PA · enumerated 2009 · practices at Planned Parenthood Southeastern Pennsylvania.

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

National Provider Identifier

1972747822

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Registry record

Entity type Individual (Type 1)
Name Mrs. Mary Ann Horn
Credential MSN, CRNP
Sex Female
Practice address 1221 Powell St, Norristown, PA, 19401
Phone (610) 279-6095
Fax (610) 279-7268
Enumeration date Apr 22, 2009
Last updated in NPPES Apr 22, 2009

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License UP 001843-6 (PA) Primary

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

What is the NPI number for Mary Horn?
The National Provider Identifier (NPI) for Mary Horn is 1972747822, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Horn practice?
The practice location on file with NPPES is in Norristown, PA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-04-22.