Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William L. Simpson, MD

Individual provider Internal Medicine Physician · NPI 1124092309

William L. Simpson, MD is an Internal Medicine Physician in Warrenton, Virginia. Practices as a sole proprietor. Licensed in Virginia.

Licensed in
VA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

332 W Lee Hwy # 251
Warrenton, VA 20186-2428
Phone: (833) 362-8800
Fax: (540) 351-8650
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 0101048951 (VA)

Record details

NPI number1124092309
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 15, 2006
Last updated in NPPESJuly 25, 2025
Certification dateJuly 25, 2025
Mailing address332 W Lee Hwy # 251, Warrenton, VA 20186-2428

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