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Mrs. Katherine Trefzger Baker, CFNP

Family Nurse Practitioner in Gainesville, VA · enumerated 2007 · practices at Gainesville Family Practice, P.C..

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

National Provider Identifier

1962520411

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Registry record

Entity type Individual (Type 1)
Name Mrs. Katherine Trefzger Baker
Credential CFNP
Sex Female
Practice address 7915 Lake Manassas Dr Ste 102, Gainesville, VA, 20155
Phone (703) 754-4101
Fax (703) 754-1105
Enumeration date Mar 26, 2007
Last updated in NPPES Sep 28, 2022

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0001114394 (VA) 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 Katherine Baker practice?
The practice location on file with NPPES is in Gainesville, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Katherine Baker?
The National Provider Identifier (NPI) for Katherine Baker is 1962520411, 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 2022-09-28.