Individual provider · Type 1 NPI

William L. Simpson, MD

Internal Medicine Physician · Warrenton, VA

NPI number 1124092309 Active

Practice location

332 W Lee Hwy # 251
Warrenton, VA 20186-2428

Fax (540) 351-8650

Specialties and licenses

Taxonomy	Code	License
Internal Medicine Physician Primary	207R00000X	0101048951 (VA)

Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…

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About NPI 1124092309

William L. Simpson, MD's National Provider Identifier is 1124092309, issued on Feb 15, 2006. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Warrenton, VA. The record was last updated on Jul 25, 2025.