Darcy M. Rumberger Deneg, MD

Medicare activity in 2024

Official CMS public-use data for Darcy M. Rumberger Deneg, 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.

Most frequent services

1. Emergency department visit with low level of medical decision making (99283)89 services
2. Emergency department visit with moderate level of medical decision making (99284)63 services
3. Emergency department visit with high level of medical decision making (99285)60 services
4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)57 services
5. Critical care, first 30-74 minutes (99291)19 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 cholesterol63%
• High blood pressure61%
• Arthritis56%
• Ischemic heart disease28%
• Anxiety21%
• Atrial fibrillation21%

Hospitals where Darcy M. Rumberger Deneg works

Medicare's Facility Affiliation Data lists Darcy M. Rumberger Deneg 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.

• Animas Surgical Hospital, LLCDurango, CO · Acute Care Hospital · Emergency services: listed by Medicare · CCN 060117
• Mercy Regional Medical CenterDurango, CO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 060013

Practice locations

Addresses where Darcy M. Rumberger Deneg is enrolled with Medicare (CMS data updated October 2, 2026).

• 450 S Camino Del Rio, 106 Animas Urgent CareDurango, CO 81301 (970) 385‑2388
• 575 Rivergate LnDurango, CO 81301 (970) 247‑3537

Group practices

Medicare enrollment lists Darcy M. Rumberger Deneg as a member of this group (CMS data updated October 2, 2026).

• Animas Surgical Hospital LLC57 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Colorado →

Other emergency medicine doctors in Durango

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

• Michelle Stone, DO
• Jonathan B. Rudolf, MD
• John McManus, MD
• Paul Mikkelson, MD
• Matthew R. Difrancesca, MD
• Dylan L. Norton, MD
• Manuela Ewing, MD

All emergency medicine doctors in Durango →

Other clinicians in Animas Surgical Hospital LLC

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

• Matthew W. Byers, PA
• Gareth W. Hammond, MD
• Lexi K. Querio, PA
• Jonathan B. Rudolf, MD
• Ann Marie Ocallaghan, CNA
• Matthew R. Difrancesca, MD

Clinician information

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