Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Kathleen A Stewart, M.D.

Hematology & Oncology Physician in Winchester, VA · enumerated 2006.

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

National Provider Identifier

1164466819

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Registry record

Entity type Individual (Type 1)

Name Dr. Kathleen A Stewart

Credential M.D.

Sex Female

Practice address 1870 Amherst St, Suite F, Winchester, VA, 22601

Phone (540) 662-1108

Enumeration date Jun 15, 2006

Last updated in NPPES Nov 28, 2012

Taxonomy & licenses

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 0101053239 (VA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
6061711	Medicaid	VA	-
210244	Other	VA	BLUE CROSS BLUE SHIELD
45-4759270	Other	VA	TAX ID
0078452000	Other	WV	WV MEDICAID

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

Where does Kathleen Stewart practice?

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

What is the NPI number for Kathleen Stewart?

The National Provider Identifier (NPI) for Kathleen Stewart is 1164466819, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-28.