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Mrs. Mary Katherine Simpson, APRN-PMHNP, BC

Psychiatric/Mental Health Nurse Practitioner in Bonham, TX · enumerated 2006.

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

National Provider Identifier

1700801891

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Registry record

Entity type Individual (Type 1)
Name Mrs. Mary Katherine Simpson
Credential APRN-PMHNP, BC
Sex Female
Practice address Bonham, TX, 75418
Phone (903) 583-6410
Fax (903) 583-6226
Enumeration date Jul 12, 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

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 609597 (TX) 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

Where does Mary Simpson practice?
The practice location on file with NPPES is in Bonham, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Simpson?
The National Provider Identifier (NPI) for Mary Simpson is 1700801891, 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.