Individual provider · Type 1 NPI

Gregory Thomas Bismack, MD

Internal Medicine Physician · Effingham, IL

NPI number 1619293149 Active

Practice location

503 N Maple St
Effingham, IL 62401-2006

Call (217) 342-2121 Map

Mailing address

801 Swarthmore Ln
University City, MO 63130-3620

Other practice locations

  • 401 Corporate Park Dr, Clayton, MO 63105-4201 · (636) 228-4149
  • 2351 Frank Scott Pkwy E, O Fallon, IL 62269-7457 · (636) 288-4149

Specialties and licenses

TaxonomyCodeLicense
Hospitalist Physician 208M00000X2022010983 (MO)
Hospitalist Physician 208M00000X036155470 (IL)
Internal Medicine Physician 207R00000X4301097035 (MI)
Internal Medicine Physician Primary 207R00000X036.155470 (IL)

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 1619293149

Gregory Thomas Bismack, MD's National Provider Identifier is 1619293149, issued on Apr 8, 2010. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Effingham, IL. The record was last updated on Jun 22, 2026.