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Diagnostic Radiology

William Colantoni Iii, DO

Works at hospitals in Denver, CO · Highlands Ranch, CO · Aurora, CO … · Colorado

Summary

Dr. William Colantoni Iii, DO is a radiologist at 12605 E 16th Ave, Uchealth Anschutz Medical Campus, Aurora, CO 80045. Phone: (720) 848-0000. Accepts Medicare assignment. In 2024, William Colantoni Iii had 902 Original Medicare patients and 1,517 services. NPI 1699980649. 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 William Colantoni Iii, 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 William Colantoni Iii accept Medicare assignment?
Yes. Medicare's clinician data says William Colantoni Iii 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 William Colantoni Iii see?
In 2024, CMS data shows 902 Original Medicare patients and 1,517 services for William Colantoni Iii. This counts Original Medicare only and measures volume, not quality.
What is William Colantoni Iii's NPI number?
1699980649. 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 William Colantoni Iii, 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 patients902
Services billed to Medicare1,517
Different services or procedures101
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. X-ray of chest, 1 view (71045)235 services
  2. Ct scan head or brain without contrast (70450)196 services
  3. Ct scan of abdomen and pelvis with contrast (74177)98 services
  4. Ct scan of upper spine without contrast (72125)77 services
  5. X-ray of chest, 2 views (71046)71 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 cholesterol66%
  • Arthritis54%
  • Depression40%
  • Chronic kidney disease40%
  • Diabetes37%

Hospitals where William Colantoni Iii works

Medicare's Facility Affiliation Data lists William Colantoni Iii 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 William Colantoni Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists William Colantoni Iii as a member of these groups (CMS data updated October 2, 2026).

  • University Physicians Incorporated3,215 clinicians in the group
  • Denver Health and Hospital Authority849 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Colorado →

Other radiologists in Aurora

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

All radiologists in Aurora →

Other clinicians in University Physicians Incorporated

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

Clinician information

CredentialDO
Graduation year2006 (20 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1699980649
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