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

Emergency Medicine

Ari Z. Melmed, MD

Sees patients in Denver, CO · Lakewood, CO · Colorado

Summary

Dr. Ari Z. Melmed, MD is an emergency medicine doctor at 10350 E Dakota Ave, Denver, CO 80247. Phone: (303) 338-4545. Accepts Medicare assignment. In 2024, Ari Z. Melmed had 55 Original Medicare patients and 72 services. NPI 1588791552. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 10350 E Dakota Ave, Denver, CO 80247 · Directions (4 more locations)
  • Phone: (303) 338‑4545
  • Medicare: Accepts Medicare assignment
  • Group practice: Colorado Permanente Medical Group PC
  • Medical school: University Of Colorado School Of Medicine, Denver · 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 Ari Z. Melmed, 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 Ari Z. Melmed accept Medicare assignment?
Yes. Medicare's clinician data says Ari Z. Melmed 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 Ari Z. Melmed see?
In 2024, CMS data shows 55 Original Medicare patients and 72 services for Ari Z. Melmed. This counts Original Medicare only and measures volume, not quality.
What is Ari Z. Melmed's NPI number?
1588791552. 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 Ari Z. Melmed, 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 patients55
Services billed to Medicare72
Different services or procedures21
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Emergency department visit with low level of medical decision making (99283)19 services
  2. Emergency department visit with high level of medical decision making (99285)11 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 pressure69%
  • High cholesterol62%
  • Anxiety45%
  • Arthritis35%
  • Ischemic heart disease35%
  • Depression35%

Practice locations

Addresses where Ari Z. Melmed is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ari Z. Melmed as a member of this group (CMS data updated October 2, 2026).

  • Colorado Permanente Medical Group PC1,327 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Colorado →

Other emergency medicine doctors in Denver

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

All emergency medicine doctors in Denver →

Other clinicians in Colorado Permanente Medical Group PC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Colorado School Of Medicine, Denver
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588791552
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians