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Family Practice

Mattie Brand, DO

Sees patients in Arvada, CO · Firestone, CO · Colorado

Summary

Dr. Mattie Brand, DO is a family doctor at 15389 W 91st Dr, Arvada, CO 80007. Accepts Medicare assignment. NPI 1285336982. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 15389 W 91st Dr, Arvada, CO 80007 · Directions (1 more location)
  • Medicare: Accepts Medicare assignment
  • Group practice: Intermountain Medical Group Denver LLC
  • Medical school: Rocky Vista University College Of Osteopathic Med · graduated 2023 (3 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Mattie Brand, 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 Mattie Brand accept Medicare assignment?
Yes. Medicare's clinician data says Mattie Brand 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.
What is Mattie Brand's NPI number?
1285336982. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Mattie Brand is enrolled with Medicare (CMS data updated October 2, 2026).

  • 15389 W 91st DrArvada, CO 80007
  • 8350 Colorado Blvd, Unit 160Firestone, CO 80504

Group practices

Medicare enrollment lists Mattie Brand as a member of this group (CMS data updated October 2, 2026).

  • Intermountain Medical Group Denver LLC568 clinicians in the group

Specialties

Find other Family Practice doctors in Colorado →

Other family doctors in Arvada

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

All family doctors in Arvada →

Other clinicians in Intermountain Medical Group Denver LLC

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

Clinician information

CredentialDO
Medical schoolRocky Vista University College Of Osteopathic Med
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285336982
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians