Gregory Bismack, M.D.
Hospitalist Physician · Effingham, IL
Gregory Bismack, M.D. is a hospitalist physician with a practice address in Effingham, Illinois, and NPI 1619293149, issued on Apr 8, 2010. Check the license (Illinois 036.155470, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Gregory Bismack
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 036.155470 IL
036155470 IL
4301097035 MI
2022010983 MO
Self-reported in NPPES; status is on the state search - Practice location
- 503 N Maple St, Effingham, IL 62401
- Phone
- (217) 342-2121
- Enumerated
- Apr 8, 2010
- Entity
- Type 1 · individual
Also registered at 503 N Maple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amanda Baker, PT, DPTPhysical Therapist1205487790
- Sheri Barnett, APNInterventional Cardiology Physician1871995472
- Peter Bleeker, OTR/LOccupational Therapist1801144100
- Laura Brown, PTPhysical Therapist1568789683
- Karen Buescher, M.S.,CCC-SLPSpeech-Language Pathologist1588912877
- Donna Cheney, PTPhysical Therapist1912224361
Verify Gregory Bismack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.155470Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
39% fewer Medicare Part D claims than the average hospitalist physician in 2024
571 Medicare Part D claims for 241 beneficiaries, against an average of 940 among the 13,923 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 34 claims were for opioids.
Most prescribed
- Eliquis32 claims
- Furosemide31 claims
- Atorvastatin Calcium30 claims
- Metoprolol Succinate30 claims
- Amlodipine Besylate25 claims
- Prednisone25 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
4 hospital and facility affiliations
- Ste Genevieve County Memorial HospitalSte Genevieve, MO · Critical Access Hospitals4 of 5 stars
- Cep America - Illinois Snf LLPBelleville, IL
- Cep America-Illinois Hospitalists, LLPEffingham, IL
- Galen Inpatient Physicians PCBridgeton, MO
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Hospitalist Physician providers in Illinois
There are 880 hospitalist physician records in Illinois.
Other hospitalist physician records in Illinois
- Hasan Abad, D.O.Chicago, IL1356872006
- Osamah Abdallah, M.D.Maywood, IL1275976144
- Hossam Abdel Aziz, MDWinfield, IL1114558145
- Gina Abraham, MDFranklin Park, IL1275600223
- Rebecca Abraham, PA-CChicago, IL1902397078
- Maria Abu Nseir, MDRock Island, IL1356017594
- Jabeen Abutalib, M.D.North Chicago, IL1750505608
- Christine AcobChicago, IL1568492452
- Saad Adoni, MDUrbana, IL1366673238
- Arnold Agapito, MDMattoon, IL1467421677
Common questions
What is Gregory Bismack, M.D.'s NPI number?
Gregory Bismack, M.D.'s National Provider Identifier (NPI) is 1619293149, issued on Apr 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Bismack, M.D. located?
The NPPES record lists a practice address at 503 N Maple St, Effingham, IL, 62401. Phone: (217) 342-2121. Providers update this record themselves, so call before visiting.
How can I verify Gregory Bismack, M.D.'s license?
NPPES lists Illinois license number 036.155470, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Bismack, M.D. prescribe under Medicare Part D?
In 2024, Gregory Bismack, M.D. had 571 Medicare Part D claims for 241 beneficiaries; the average among hospitalist physician prescribers was 940. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.