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Internal Medicine

Douglas F. Duffee, MD

Works at hospitals in Pueblo, CO · Colorado

Summary

Dr. Douglas F. Duffee, MD is an internal medicine doctor at 311 W 14th St, Pueblo, CO 81003. Phone: (719) 595-7585. Accepts Medicare assignment. In 2024, Douglas F. Duffee had 483 Original Medicare patients and 882 services. NPI 1851372320. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 311 W 14th St, Pueblo, CO 81003 · Directions (3 more locations)
  • Phone: (719) 595‑7585
  • Medicare: Accepts Medicare assignment
  • Hospital: Parkview Medical Center, Inc
  • Group practice: Poudre Valley Medical Group LLC
  • Medical school: East Tennessee State University Quillen College Of Medicine · graduated 1993 (33 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Douglas F. Duffee, 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 Douglas F. Duffee accept Medicare assignment?
Yes. Medicare's clinician data says Douglas F. Duffee 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 Douglas F. Duffee see?
In 2024, CMS data shows 483 Original Medicare patients and 882 services for Douglas F. Duffee. This counts Original Medicare only and measures volume, not quality.
What is Douglas F. Duffee's NPI number?
1851372320. 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 Douglas F. Duffee, 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 patients483
Services billed to Medicare882
Different services or procedures31
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)458 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)154 services
  3. Hospital discharge day management, 30 minutes or less (99238)47 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)44 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)41 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%
  • Arthritis52%
  • Ischemic heart disease46%
  • Diabetes43%
  • Atrial fibrillation43%

Hospitals where Douglas F. Duffee works

Medicare's Facility Affiliation Data lists Douglas F. Duffee 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 Douglas F. Duffee is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Douglas F. Duffee as a member of this group (CMS data updated October 2, 2026).

  • Poudre Valley Medical Group LLC2,440 clinicians in the group

Specialties

Find other Internal Medicine doctors in Colorado →

Other internal medicine doctors in Pueblo

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

All internal medicine doctors in Pueblo →

Other clinicians in Poudre Valley Medical Group LLC

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

Clinician information

CredentialMD
Medical schoolEast Tennessee State University Quillen College Of Medicine
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1851372320
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