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

Cardiovascular Disease (Cardiology)

Henry C. Quevedo Diaz, MD

Works at hospitals in Hamilton, MT · Missoula, MT · Great Falls, MT … · Montana, Colorado, Pennsylvania

Summary

Dr. Henry C. Quevedo Diaz, MD is a cardiologist at 1 Mercado St, Durango, CO 81301. Phone: (970) 247-1120. Accepts Medicare assignment. In 2024, Henry C. Quevedo Diaz had 512 Original Medicare patients and 1,005 services. NPI 1679708374. 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 Henry C. Quevedo Diaz, 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 Henry C. Quevedo Diaz accept Medicare assignment?
Yes. Medicare's clinician data says Henry C. Quevedo Diaz 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 Henry C. Quevedo Diaz see?
In 2024, CMS data shows 512 Original Medicare patients and 1,005 services for Henry C. Quevedo Diaz. This counts Original Medicare only and measures volume, not quality.
What is Henry C. Quevedo Diaz's NPI number?
1679708374. 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 Henry C. Quevedo Diaz, 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 patients512
Services billed to Medicare1,005
Different services or procedures55
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)422 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)128 services
  3. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)97 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)58 services
  5. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)32 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 cholesterol69%
  • Ischemic heart disease50%
  • Arthritis44%
  • Heart failure41%
  • Atrial fibrillation38%

Hospitals where Henry C. Quevedo Diaz works

Medicare's Facility Affiliation Data lists Henry C. Quevedo Diaz 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 Henry C. Quevedo Diaz 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 Henry C. Quevedo Diaz as a member of these groups (CMS data updated October 2, 2026).

  • Catholic Health Initiatives Colorado1,225 clinicians in the group
  • Billings Clinic Specialty Supplies and Services, LLC824 clinicians in the group
  • Fayette Physician Network Inc320 clinicians in the group
  • CMSC LLC91 clinicians in the group
  • Great Falls Clinic LLC72 clinicians in the group
  • RCHP Billings - Missoula LLC69 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Colorado →

Other cardiologists in Durango

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

All cardiologists in Durango →

Other clinicians in Catholic Health Initiatives Colorado

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

Clinician information

CredentialMD
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679708374
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