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

Family Practice

Ada Gillis, MD

Sees patients in Englewood, CO · Colorado

Summary

Ada Gillis, MD (Family Practice) is enrolled with Medicare at 1 practice location in Englewood, CO. NPI 1861626343. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ada Gillis, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
YesAccepts Medicare assignment
17Years since medical school (graduated 2009)
FemaleGender (as listed)
Colorado Permanente Medical Group PCGroup practice

Quick answers

Where does Ada Gillis see patients?
Medicare's clinician data lists 1 practice location in Englewood, CO. Call before your visit to confirm the address.
What is Ada Gillis's specialty?
Medicare lists Family Practice as the primary specialty.
Does Ada Gillis accept Medicare assignment?
Yes. Medicare's clinician data says Ada Gillis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Ada Gillis?
(303) 338-4545, as listed in official Medicare / NPI Registry data.
What is Ada Gillis's NPI number?
1861626343. 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 Ada Gillis is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ada Gillis as a member of this group (CMS data updated 2026-10-02).

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

Specialties

Find other Family Practice doctors in Colorado →

Other family doctors in Englewood

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

All family doctors in Englewood →

Clinician information

CredentialMD
Graduation year2009
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1861626343
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 2026-10-02, retrieved 2026-10-29
  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