Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Teresa D Williams, MD

Allergy & Immunology Physician in Winchester, VA · enumerated 2005.

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

National Provider Identifier

1306827399

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Registry record

Entity type Individual (Type 1)

Name Dr. Teresa D Williams

Credential MD

Sex Female

Practice address 1828 Plaza Dr, Winchester, VA, 22601

Phone (540) 662-9115

Fax (540) 665-0411

Enumeration date Nov 8, 2005

Last updated in NPPES Oct 31, 2023

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 0101267695 (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
VVW678F103	Other	VA	PTAN
1306827399	Medicaid	VA	-
1306827399	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

Where does Teresa Williams 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 Teresa Williams?

The National Provider Identifier (NPI) for Teresa Williams is 1306827399, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Rebecca Dawley Physician Assistant · Winchester, VA NPI 1013167204 Nancy Myers Physician Assistant · Winchester, VA NPI 1346470572

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-31.