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Diagnostic Radiology

J D. Gilliland, MD

Works at hospitals in Varnville, SC · Thornton, CO · Brighton, CO … · South Carolina, Colorado, Montana

Summary

Dr. J D. Gilliland, MD is a radiologist at 1375 E 19th Ave, Denver, CO 80218. Phone: (303) 914-8800. Accepts Medicare assignment. In 2024, J D. Gilliland had 598 Original Medicare patients and 1,612 services. NPI 1134104227. 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 J D. Gilliland, 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 J D. Gilliland accept Medicare assignment?
Yes. Medicare's clinician data says J D. Gilliland 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 J D. Gilliland see?
In 2024, CMS data shows 598 Original Medicare patients and 1,612 services for J D. Gilliland. This counts Original Medicare only and measures volume, not quality.
What is J D. Gilliland's NPI number?
1134104227. 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 J D. Gilliland, 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 patients598
Services billed to Medicare1,612
Different services or procedures90
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)798 services
  2. X-ray of chest, 1 view (71045)178 services
  3. X-ray of chest, 2 views (71046)63 services
  4. Ct scan of blood vessels of chest with contrast (71275)39 services
  5. Ct scan of abdomen and pelvis with contrast (74177)36 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 pressure74%
  • High cholesterol68%
  • Arthritis52%
  • Diabetes37%
  • Ischemic heart disease33%
  • Chronic kidney disease31%

Hospitals where J D. Gilliland works

Medicare's Facility Affiliation Data lists J D. Gilliland 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.

Practice locations

Addresses where J D. Gilliland is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

Group practices

Medicare enrollment lists J D. Gilliland as a member of these groups (CMS data updated October 2, 2026).

  • MUSC Community Physicians1,544 clinicians in the group
  • Charlotte Radiology P A227 clinicians in the group
  • Diversified Radiology of Colorado Inc94 clinicians in the group
  • Spectrum Medical Imaging LLC47 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Colorado →

Other radiologists in Denver

Clinicians with the same Medicare primary specialty in Denver, CO — not a recommendation.

All radiologists in Denver →

Other clinicians in MUSC Community Physicians

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At San Antonio
Graduation year1981 (45 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134104227
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