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Allergy/Immunology

Dennard W. Ellison, MD

Works at hospitals in Pueblo, CO · Colorado

Summary

Dr. Dennard W. Ellison, MD is an allergist and immunologist at 1218 S Pueblo Blvd, Pueblo, CO 81005. Phone: (719) 542-1803. Accepts Medicare assignment. In 2024, Dennard W. Ellison had 201 Original Medicare patients and 442 services. NPI 1285728659. 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: Allergist and immunologist (Medicare lists Allergy/Immunology)
  • Address: 1218 S Pueblo Blvd, Pueblo, CO 81005 · Directions (2 more locations)
  • Phone: (719) 542‑1803
  • Medicare: Accepts Medicare assignment
  • Hospital: Parkview Medical Center, Inc
  • Group practice: Poudre Valley Medical Group LLC
  • Medical school: University Of Florida College Of Medicine · graduated 1986 (40 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Dennard W. Ellison, 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 Dennard W. Ellison accept Medicare assignment?
Yes. Medicare's clinician data says Dennard W. Ellison 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 Dennard W. Ellison see?
In 2024, CMS data shows 201 Original Medicare patients and 442 services for Dennard W. Ellison. This counts Original Medicare only and measures volume, not quality.
What is Dennard W. Ellison's NPI number?
1285728659. 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 Dennard W. Ellison, 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 patients201
Services billed to Medicare442
Different services or procedures31
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)120 services
  2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)90 services
  3. Diagnostic exam of voice box using a flexible endoscope (31575)53 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)36 services
  5. Diagnostic exam of nasal passages using an endoscope (31231)23 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%
  • Arthritis50%
  • Diabetes27%
  • Ischemic heart disease24%
  • Depression21%

Hospitals where Dennard W. Ellison works

Medicare's Facility Affiliation Data lists Dennard W. Ellison 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 Dennard W. Ellison is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Dennard W. Ellison 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 Allergy/Immunology doctors in Colorado →

Other allergist and immunologists in Colorado

Clinicians with the same Medicare primary specialty in Colorado — not a recommendation.

All allergist and immunologists in Colorado →

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 schoolUniversity Of Florida College Of Medicine
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285728659
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