Gregory Thomas Bismack, M.D.
Internal Medicine in Effingham, IL. Individual provider (NPI-1).
NPI number1619293149
StatusActive
Last updated in NPPESJun 22, 2026
Details
- NPI
- 1619293149
- Entity type
- Individual (NPI-1)
- Name
- Gregory Thomas Bismack
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- Enumeration date
- Apr 8, 2010
- Certification date
- Jun 22, 2026
- Last updated
- Jun 22, 2026
Taxonomy and licenses
| Taxonomy code | Description | License | State | Primary |
|---|---|---|---|---|
| 207R00000X | Internal Medicine | 036.155470 | IL | Yes |
| 208M00000X | Hospitalist | 2022010983 | MO | |
| 208M00000X | Hospitalist | 036155470 | IL | |
| 207R00000X | Internal Medicine | 4301097035 | MI |
Practice location
503 N Maple StEffingham, IL 62401-2006
Phone 217-342-2121
Mailing address
801 Swarthmore LnUniversity City, MO 63130-3620
Phone 248-808-2485
Other practice locations
401 Corporate Park Dr
Clayton, MO 63105-4201
Clayton, MO 63105-4201
Phone 636-228-4149
2351 Frank Scott Pkwy E
O Fallon, IL 62269-7457
O Fallon, IL 62269-7457
Phone 636-288-4149
Is something wrong?
This page shows exactly what the provider filed with NPPES. Only the provider (or their surrogate) can change it, by signing in to NPPES. Our page updates within a day of their change. See how to update NPI information.
Other Internal Medicine Physician providers in Effingham, IL
- Narinder S. Arora, M.D.NPI 1477576924
- Navdip Singh Arora, M.D.NPI 1902117328
- Elene M Awad, MD PHDNPI 1477543601
- Thomas Heischmidt, M.D.NPI 1396720983
- Gautam Jha, M.DNPI 1447314737
- David J Kowalski, M.D.NPI 1538194600
- Rita Waleska Maldonado, M.D.NPI 1154407039
- Jennifer C Maneja, MDNPI 1194775064
- Narinder S. Arora, M.D., S.C.NPI 1760496590
- Lalaine Ramirez-Hom, M.D.NPI 1669408209
All 12 Internal Medicine Physician providers in Effingham · All 787 providers in Effingham
Checking a whole list?
Paste up to 5,000 NPIs and download status, name, taxonomy, license and address for each one. Useful for credentialing, billing and pharmacy claim checks.