Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Ellen Sizemore, FNP-BC

Family Nurse Practitioner in Charleston, WV · enumerated 2007.

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

National Provider Identifier

1790979300

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Registry record

Entity type Individual (Type 1)

Name Mary Ellen Sizemore

Credential FNP-BC

Sex Female

Practice address 3501 Maccorkle Ave Se, Se#151, Charleston, WV, 25304

Phone (304) 964-6370

Fax (855) 632-8329

Enumeration date Aug 28, 2007

Last updated in NPPES Dec 8, 2015

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 52805 (WV) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 52805 (WV) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN52805-FNP-BC (WV) Primary

Other identifiers

Identifier	Type	State	Issuer
3810010313	Medicaid	WV	-

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mary Sizemore?

The National Provider Identifier (NPI) for Mary Sizemore is 1790979300, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Sizemore practice?

The practice location on file with NPPES is in Charleston, WV. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Sandra Y Elliott MD Inc Specialist · Charleston, WV NPI 1346402161 Connie Voltin Family Nurse Practitioner · Charleston, WV NPI 1700243946 Charleston Medical Supplies Durable Medical Equipment & Medical Supplies · Charleston, WV NPI 1326589367 West Virginia Medical Specialists Pllc Clinic/Center · Charleston, WV NPI 1134884018

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-08.