Individual provider · Type 1 NPI

Rachel Lynn Duncan, MD

Internal Medicine Physician · St. Louis, MO

NPI number 1639601628 Active

Practice location

3009 N Ballas Rd Ste 390C
St. Louis, MO 63131-2322

Call (314) 996-5900 Map

Mailing address

660 Mason Ridge Center Dr Ste 300
St. Louis, MO 63141-8512

Other practice locations

6201 Harry Hines Blvd, Dallas, TX 75390-0001 · (214) 633-5555

Specialties and licenses

Taxonomy	Code	License
Hospitalist Physician	208M00000X	S6164 (TX)
Internal Medicine Physician Primary	207R00000X	2023042765 (MO)

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 1639601628

Rachel Lynn Duncan, MD's National Provider Identifier is 1639601628, issued on Mar 30, 2017. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in St. Louis, MO. The record was last updated on Sep 22, 2025.