Gregory Szych, DO
Gastroenterology Physician · Herrin, IL
Gregory Szych, DO is a gastroenterology physician with a practice address in Herrin, Illinois, and NPI 1841268521, issued on Mar 9, 2006. Check the license (Illinois 036151389, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Gregory Szych
- Credential
- DO
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 036151389 IL
E8994 AR
DR.0043812 CO
95095 GA
04449 KY
and 3 more
Self-reported in NPPES; status is on the state search - Practice location
- 404 Lincoln Dr, Herrin, IL 62948
- Phone
- (618) 993-0056
- Enumerated
- Mar 9, 2006
- Record last updated
- Jul 14, 2026
- Fax
- (618) 993-0752
- Medicaid IDs
- 04205019 MS
3307407 TN
7100407180 KY - Medicare enrollment
- Enrolled (PECOS I20210826000090); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 404 Lincoln Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristin Betz, NPNurse Practitioner1588909519
- Mack McCain, M.D.Gastroenterology Physician1558321190
- Amy Miller, APRNNurse Practitioner1255973830
- Jimmy Morrison, MDGastroenterology Physician1881782654
Verify Gregory Szych 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 036151389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average gastroenterology physician in 2024
17 Medicare Part D claims for 13 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $69.34
4 payments; by number, the most common kind was food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 4 group practices
- Baptist Health Medical Group IncElizabethtown, KY
- Baptist Memorial Medical Group, Inc.Oxford, MS
- DCH Provider Services LLCTuscaloosa, AL
- UT Methodist Physicians LLCMemphis, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Szych among 887 gastroenterology physician records in Illinois
Gregory Szych, DO is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1994 · median 2003 among the 643 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 gastroenterology physician records list a practice address in Herrin
They are 5 of the 419 NPPES records with a practice address in Herrin, and 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Herrin → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jeffrey Jacobs, M.D.Herrin, IL 629481174524136
- Mack McCain, M.D.Herrin, IL 629481558321190
- Jimmy Morrison, MDHerrin, IL 629481881782654
- Sushilkumar Tibrewala, M.D.Herrin, IL 629481457366858
- Nader Dababneh, M.D.Carbondale, IL 629011821065392
- Zahoor Makhdoom, MDCarbondale, IL 629011982667309
- Melissa Martinez Mateo, M.D.Carbondale, IL 629011003124280
- Saeed Zamir, M.D.Du Quoin, IL 628321134113400
Common questions
What is Gregory Szych, DO's NPI number?
Gregory Szych, DO's National Provider Identifier (NPI) is 1841268521, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Szych, DO located?
The NPPES record lists a practice address at 404 Lincoln Dr, Herrin, IL, 62948. Phone: (618) 993-0056. Providers update this record themselves, so call before visiting.
How can I verify Gregory Szych, DO's license?
NPPES lists Illinois license number 036151389, 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 Szych, DO prescribe under Medicare Part D?
In 2024, Gregory Szych, DO had 17 Medicare Part D claims for 13 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.