Individual provider · Type 1 NPI

Colin E. Diffie, MD

Rheumatology Physician · St. Louis, MO

NPI number 1942616404 Active

Practice location

915 N Grand Blvd
St. Louis, MO 63106-1621

Call (314) 652-4100 Map

Fax (314) 289-6442

Mailing address

PO Box 7412011
Chicago, IL 60674-2011

Other practice locations

  • 4921 Parkview Pl, Div Im Rheumatology, Ste 5C, St. Louis, MO 63110-1032 · (314) 286-2635

Specialties and licenses

TaxonomyCodeLicense
Rheumatology Physician Primary 207RR0500X2019017299 (MO)
Internal Medicine Physician 207R00000X2019017299 (MO)

Rheumatology Physician: An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and "collagen" diseases.

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About NPI 1942616404

Colin E. Diffie, MD's National Provider Identifier is 1942616404, issued on Jul 5, 2014. The primary taxonomy on file is Rheumatology Physician (207RR0500X), and the practice location is in St. Louis, MO. The record was last updated on Sep 11, 2025.