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

Diagnostic Radiology

Jonathan T. Locke, MD

Works at hospitals in Decatur, IL · O Fallon, IL · Pana, IL … · Illinois

Summary

Dr. Jonathan T. Locke, MD is a radiologist at 1220 W Jackson St, Sullivan, IL 61951. Phone: (217) 876-8121. Accepts Medicare assignment. In 2024, Jonathan T. Locke had 4,585 Original Medicare patients and 9,067 services. NPI 1982650990. 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 Jonathan T. Locke, 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 Jonathan T. Locke accept Medicare assignment?
Yes. Medicare's clinician data says Jonathan T. Locke 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 Jonathan T. Locke see?
In 2024, CMS data shows 4,585 Original Medicare patients and 9,067 services for Jonathan T. Locke. This counts Original Medicare only and measures volume, not quality.
What is Jonathan T. Locke's NPI number?
1982650990. 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 Jonathan T. Locke, 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 patients4,585
Services billed to Medicare9,067
Different services or procedures188
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Screening mammography (77067)1,157 services
  2. Screening 3d breast mammography (77063)1,139 services
  3. X-ray of chest, 1 view (71045)851 services
  4. X-ray of chest, 2 views (71046)416 services
  5. Ct scan of abdomen and pelvis with contrast (74177)344 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%
  • Arthritis47%
  • Ischemic heart disease38%
  • Diabetes31%
  • Anxiety26%

Hospitals where Jonathan T. Locke works

Medicare's Facility Affiliation Data lists Jonathan T. Locke 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.

  • Decatur Memorial HospitalDecatur, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140135
  • HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140187
  • Pana Community HospitalPana, IL · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 141341
  • St Marys HospitalDecatur, IL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 140166
  • Warner Hospital and Health ServicesClinton, IL · Critical Access Hospital · Emergency services: listed by Medicare · CCN 141303

Practice locations

Addresses where Jonathan T. Locke is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Jonathan T. Locke as a member of this group (CMS data updated October 2, 2026).

  • Imaging Consultants of Central Illinois SC12 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Illinois →

Other radiologists in Illinois

Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.

All radiologists in Illinois →

Other clinicians in Imaging Consultants of Central Illinois SC

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

Clinician information

CredentialMD
Medical schoolClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1982650990
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