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

Jason E Barnett, MD

Individual provider Family Medicine Physician · NPI 1295728988

Jason E Barnett, MD is registered under Family Practice in Maryville, Illinois. Graduated from University of Texas Medical Branch at Galveston in 1998, 28 years ago. Practices with Anderson Medical Group LLC, a 139-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
28
Trained at
University of Texas Medical Branch at Galveston
Licensed in
IL
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6812 State Route 162 Ste 120
Maryville, IL 62062-8553 Not confirmed with CMS for 13 years — call before visiting
Phone: (618) 288-0044
Fax: (618) 288-0066
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036104914 (IL)

Record details

NPI number1295728988
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 26, 2005
Last updated in NPPESJanuary 14, 2013

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 1998 (28 years in practice)
Group practice Anderson Medical Group Llc — 139 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients432
Services billed 2,783 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $212 6 payments · a meal or drink at a meeting or visit, not a fee
Education $39 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Alton Memorial Hospital Hospital · Alton, IL
  • Anderson Hospital Hospital · Maryville, IL
  • Community Hospital Of Staunton Hospital · Staunton, IL
  • Memorial Hospital Hospital · Belleville, IL
  • Apollo Medical Home health agency · Saint Louis, MO · listed as Apollo Medical, Inc
  • St Joseph'S Hospital Hospital · Highland, IL
  • Amedisys Home Health Home health agency · O Fallon, IL
  • Anderson Home Health Services Home health agency · Maryville, IL
  • Gateway Regional Home Health - Granite City Home health agency · Granite City, IL

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Anderson Medical Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 139 clinicians in the practice; 12 are shown here.

Other providers in Maryville