Individual provider · Type 1 NPI

Nathan Philip Seigrist, DO

General Practice Physician · O Fallon, IL

NPI number 1780382465 Active

Practice location

3 Saint Elizabeth Blvd Ste 4000
O Fallon, IL 62269-1284

Call (618) 256-9355 Map

Fax (618) 206-2332

Specialties and licenses

TaxonomyCodeLicense
Military Health Care Provider 171000000XNone listed
Student in an Organized Health Care Education/Training Program 390200000X125.084301 (IL)
General Practice Physician Primary 208D00000XOS23985 (FL)

General Practice Physician: A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.

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About NPI 1780382465

Nathan Philip Seigrist, DO's National Provider Identifier is 1780382465, issued on Feb 21, 2023. The primary taxonomy on file is General Practice Physician (208D00000X), and the practice location is in O Fallon, IL. The record was last updated on Jun 24, 2026.