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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GREGORY SZYCH DO
NPI 1841268521
Internal Medicine - Gastroenterology in Herrin, IL

Active since March 09, 2006PECOS EnrolledAccepts Medicare Assignment
404 LINCOLN DR, HERRIN, IL 62948(618) 993-0056(618) 993-0752 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jul 14, 2026, May 19, 2025, May 17, 2024 and 11 more (14 updates tracked since 2018).

About Gregory Szych Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREGORY SZYCH DO (NPI 1841268521) is an individual gastroenterology provider in Herrin, Illinois, licensed in Arkansas (E8994) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Baptist Memorial Hospital North Ms, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1841268521
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameGREGORY SZYCHCredential: DO
Location Address404 LINCOLN DRHerrin, IL 62948-3789
Mailing Address1904 Grant Ave Ste GJonesboro, AR 72401-6165 · (870) 493-3007 · Fax (970) 330-9076
Phone(618) 993-0056
Fax(618) 993-0752
Sole ProprietorNo
Medical School CMSUniversity Of New England, College Of Osteo MedicineGraduated 1994
Enumeration DateMarch 9, 2006
Last NPPES UpdateJuly 14, 202614 updates tracked since enumeration
NPPES CertifiedJuly 14, 2026
✔ NPI 1841268521 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses✔ Licensed in AR · E8994✔ Licensed in KY · 04449✔ Licensed in VA · 0102204735✔ Licensed in TN · DO1484✔ Licensed in GA · 95095✔ Licensed in CO · DR.0043812✔ Licensed in MS · 21337✔ Licensed in IL · 036151389
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
404 LINCOLN DR, Herrin, IL 62948
Open in Google Maps ↗

Secondary Practice Locations 6

Location 11100 Belk BlvdOxford, MS 38655-5242 · Phone (662) 513-1609 · Fax (662) 232-8555
Location 24550 Cobb Parkway North NW Ste 210BAcworth, GA 30101-4182 · Phone (470) 267-1760 · Fax (470) 986-7002
Location 3863 Glenrock RdNorfolk, VA 23502-3701 · Phone (757) 252-2900 · Fax (757) 252-3235
Location 4415 S 28th AveHattiesburg, MS 39401-7246 · Phone (601) 268-5680 · Fax (601) 579-5240
Location 52030 Mountain View Ave Ste 310Longmont, CO 80501-3181 · Phone (720) 652-8650 · Fax (720) 652-8655
Location 62 Good Samaritan Way Ste 420Mount Vernon, IL 62864-2478 · Phone (618) 899-4000

Other Identifiers 3

Medicaid04205019MS
Medicaid3307407TN
Medicaid7100407180KY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., Ambetter from Arkansas Health & Wellness, Ambetter from Buckeye Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory Szych Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4688655467
PECOS Enrollment IDI20100119000298, I20181109000584, I20210826000090, I20210907001242, I20250210000692
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
101 services22 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
18 services18 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
17 services17 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
16 services13 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
11 services11 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baptist Memorial Hospital North Ms

Acute Care Hospitals · Oxford, MS
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number250034
Location1100 Belk Blvd /Po Box 946Oxford, MS 38655 · Lafayette County
Emergency services Birthing friendly

Baptist Memorial Hospital Desoto

Acute Care Hospitals · Southaven, MS
1/5 CMS rating
OwnershipProprietary
CMS Certification Number250141
Location7601 Southcrest ParkwaySouthaven, MS 38671 · De Soto County
Emergency services Birthing friendly

Methodist Hospitals Of Memphis

Acute Care Hospitals · Memphis, TN
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number440049
Location1265 Union Ave Suite 700Memphis, TN 38104 · Shelby County
Emergency services Birthing friendly

St Francis Hospital

Acute Care Hospitals · Memphis, TN
2/5 CMS rating
OwnershipProprietary
CMS Certification Number440183
Location5959 Park AveMemphis, TN 38119 · Shelby County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62948 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AMY LEEANN MILLER APRN
Nurse Practitioner
404 LINCOLN DR
HERRIN, IL 62948
Williamson County (618) 993-0056
DR. MACK E MCCAIN M.D.
Internal Medicine (Gastroenterology)
404 LINCOLN DR
HERRIN, IL 62948
Williamson County (618) 993-0056
HEARTLAND INTERNAL MEDICINE LTD
Internal Medicine
404 LINCOLN DR
HERRIN, IL 62948
Williamson County (618) 559-6549
MRS. KRISTIN RAE BETZ NP
Nurse Practitioner
404 LINCOLN DR
HERRIN, IL 62948
Williamson County (618) 993-0056
JIMMY J MORRISON MD
Internal Medicine (Gastroenterology)
404 LINCOLN DR
HERRIN, IL 62948
Williamson County (618) 993-0056

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Szych's NPI number?

The NPI number for Gregory Szych is 1841268521. It was assigned to this individual provider in the NPPES registry on March 9, 2006.

Where is Gregory Szych located?

Gregory Szych practices at 404 Lincoln Dr, Herrin, IL 62948. The listed phone number is (618) 993-0056.

What is Gregory Szych's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Gregory Szych enrolled in Medicare?

Yes. Gregory Szych is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Gregory Szych accept?

Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Buckeye Health Plan and Ambetter from Home State Health and 14 other insurers list Gregory Szych as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gregory Szych affiliated with any hospitals?

According to CMS data, Gregory Szych is affiliated with Baptist Memorial Hospital North Ms, Baptist Memorial Hospital Desoto, Methodist Hospitals Of Memphis and St Francis Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Szych was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.