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

Emergency Medicine

Geoffrey A. Geer, MD

Works at hospitals in Westminster, CO · Colorado

Summary

Geoffrey A. Geer, MD (Emergency Medicine) is listed by Medicare at 1 hospital in Westminster, CO. NPI 1396728481. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Geoffrey A. Geer, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
38Years since medical school (graduated 1988)
University Of Southern California Keck School Of MedicineMedical school
MaleGender (as listed)
Usacs Community Emergency Services of Colorado Inc.Group practice (+1 more)

Quick answers

Which hospitals does Geoffrey A. Geer work at?
Medicare's official clinician data lists Geoffrey A. Geer at 1 hospital: Centura Health-St Anthony North Health Campus. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Geoffrey A. Geer see patients?
Medicare's clinician data lists 3 practice locations, including Lakewood, CO, Denver, CO and Littleton, CO. Call before your visit to confirm the address.
What is Geoffrey A. Geer's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Geoffrey A. Geer accept Medicare assignment?
Yes. Medicare's clinician data says Geoffrey A. Geer 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 Geoffrey A. Geer?
(303) 649-3620, as listed in official Medicare / NPI Registry data.
What is Geoffrey A. Geer's NPI number?
1396728481. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Geoffrey A. Geer works

Medicare's Facility Affiliation Data lists Geoffrey A. Geer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Geoffrey A. Geer is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Geoffrey A. Geer as a member of these groups (CMS data updated 2026-10-02).

  • Usacs Community Emergency Services of Colorado Inc.175 clinicians in the group
  • Usacs of Colorado Inc59 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Colorado →

Other emergency medicine doctors in Lakewood

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

All emergency medicine doctors in Lakewood →

Clinician information

CredentialMD
Medical schoolUniversity Of Southern California Keck School Of Medicine
Graduation year1988
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1396728481
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  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