Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

General Surgery

Kevin T. Barnett, MD

Works at hospitals in O Fallon, IL · Belleville, IL · Centralia, IL … · Illinois

Summary

Dr. Kevin T. Barnett, MD is a general surgeon at 12860 Troxler Ave, Highland, IL 62249. Phone: (618) 651-2810. Accepts Medicare assignment. In 2024, Kevin T. Barnett had 341 Original Medicare patients and 816 services. NPI 1932166030. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Kevin T. Barnett, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kevin T. Barnett accept Medicare assignment?
Yes. Medicare's clinician data says Kevin T. Barnett accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kevin T. Barnett see?
In 2024, CMS data shows 341 Original Medicare patients and 816 services for Kevin T. Barnett. This counts Original Medicare only and measures volume, not quality.
What is Kevin T. Barnett's NPI number?
1932166030. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kevin T. Barnett, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients341
Services billed to Medicare816
Different services or procedures86
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)190 services
  2. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)181 services
  3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)89 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)44 services
  5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)27 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis60%
  • Ischemic heart disease39%
  • Diabetes37%
  • Chronic kidney disease35%

Hospitals where Kevin T. Barnett works

Medicare's Facility Affiliation Data lists Kevin T. Barnett at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140187
  • Memorial HospitalBelleville, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140185
  • SSM Health St Mary's Hospital -CentraliaCentralia, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140034
  • St Joseph's HospitalHighland, IL · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 141336
  • St Josephs HospitalBreese, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140145

Practice locations

Addresses where Kevin T. Barnett is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

Group practices

Medicare enrollment lists Kevin T. Barnett as a member of these groups (CMS data updated October 2, 2026).

  • HSHS Medical Group Inc219 clinicians in the group
  • Lincoln Surgical Associates, Ltd.24 clinicians in the group

Specialties

Find other General Surgery doctors in Illinois →

Other general surgeons in Highland

Clinicians with the same Medicare primary specialty in Highland, IL — not a recommendation.

All general surgeons in Highland →

Other clinicians in HSHS Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolSouthern Illinois University School Of Medicine
Graduation year1999 (27 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1932166030
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians