Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gregory Szych, DO

Individual provider Gastroenterology Physician · NPI 1841268521

Gregory Szych, DO practises Gastroenterology in Herrin, Illinois. Graduated from University of New England, College of Osteo Medicine in 1994, 32 years ago. Practices with Baptist Memorial Medical Group, Inc, a 571-clinician group, works from 7 locations, accepts Medicare assignment and offers telehealth. Licensed in Arkansas, Colorado, Georgia and Illinois and 4 more.

Years since qualifying
32
Trained at
University of New England, College of Osteo Medicine
Licensed in
AR, CO, GA, IL, KY, MS
In the registry since
2006
Specialties on file
8
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

404 Lincoln Dr
Herrin, IL 62948-3789
Phone: (618) 993-0056
Fax: (618) 993-0752
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (6)

  • 2030 Mountain View Ave Ste 310, Longmont, CO 80501-3181 — (720) 652-8650
  • 4550 Cobb Parkway North Nw Ste 210b, Acworth, GA 30101-4182 — (470) 267-1760
  • 2 Good Samaritan Way Ste 420, Mount Vernon, IL 62864-2478 — (618) 899-4000
  • 415 S 28th Ave, Hattiesburg, MS 39401-7246 — (601) 268-5680
  • 1100 Belk Blvd, Oxford, MS 38655-5242 — (662) 513-1609
  • 863 Glenrock Rd, Norfolk, VA 23502-3701 — (757) 252-2900

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence E8994 (AR)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 04449 (KY)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 0102204735 (VA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence DO1484 (TN)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 95095 (GA)
Gastroenterology Physician Taxonomy 207RG0100X · Licence DR.0043812 (CO)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 21337 (MS)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 036151389 (IL)

Record details

NPI number1841268521
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 9, 2006
Last updated in NPPESJuly 14, 2026
Certification dateJuly 14, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Graduated 1994 (32 years in practice)
Group practice Baptist Memorial Medical Group, Inc. — 571 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 19 times · 50th percentile
Colonoscopy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients108
Services billed 322 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Baptist Memorial Medical Group, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 571 clinicians in the practice; 12 are shown here.

Other providers in Herrin