ANDREW DEMARS MD
NPI 1326467440
Emergency Medicine in Aurora, CO
About Andrew Demars Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW DEMARS MD (NPI 1326467440) is an individual emergency medicine provider in Aurora, Colorado, licensed in Missouri (2019005172) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Ssm Health Depaul Hospital St Louis, and is a graduate of University Of Colorado School Of Medicine, Denver (2014).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Andrew Demars Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Andrew Demars reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80224
- Reassigned Medicare billing, Colorado enrollment
- 352 clinicians in this Medicare group
Denver, CO 80210
- Reassigned Medicare billing, Colorado enrollment
- 468 clinicians in this Medicare group
Lakewood, CO 80228
- Reassigned Medicare billing, Colorado enrollment
- 285 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 255 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 194 clinicians in this Medicare group
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 clinicians in this Medicare group
Alton, IL 62002
- Reassigned Medicare billing, Missouri enrollment
- 343 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm Health Depaul Hospital St Louis
Acute Care Hospitals · Bridgeton, MOSsm Health Saint Louis University Hospital
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AURORA, CO 80045
AURORA, CO 80045
AURORA, CO 80045
AURORA, CO 80045
AURORA, CO 80045
AURORA, CO 80045
AURORA, CO 80045
AURORA, CO 80045
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Andrew Demars's NPI number?
The NPI number for Andrew Demars is 1326467440. It was assigned to this individual provider in the NPPES registry on April 16, 2014.
Where is Andrew Demars located?
Andrew Demars practices at 13001 E. 17th Place University Of Colorado School Of Medicine Gme, Aurora, CO 80045. The listed phone number is (970) 690-1609.
What is Andrew Demars's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Andrew Demars enrolled in Medicare?
Yes. Andrew Demars is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Andrew Demars's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Demars reassigns Medicare benefits to 7 organizations: Usacs Community Emergency Services Of Colorado, Inc. (Denver, CO), Usacs Of Colorado Inc (Denver, CO), Usacs Observation Medicine Services Of Colorado Inc. (Lakewood, CO), Cogent Healthcare Of Missouri, Inc (Fenton, MO), Slh Physicians LLC (Saint Louis, MO) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Andrew Demars's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Demars accept?
Health plans from Blue Cross and Blue Shield of Texas list Andrew Demars as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Andrew Demars affiliated with any hospitals?
According to CMS data, Andrew Demars is affiliated with Ssm Health Depaul Hospital St Louis and Ssm Health Saint Louis University Hospital.
When was this NPI record last updated?
The NPPES record for Andrew Demars was last updated on January 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Andrew Demars, MD · NPI 1326467440
Emergency Medicine physician in Aurora, Colorado. Individual provider, active in the CMS NPPES registry since April 16, 2014.
## Identity
- **NPI:** 1326467440 (Entity type: Individual)
- **Enumerated:** April 16, 2014
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 2019005172 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME, Aurora, CO 80045-2581
- **Phone:** (970) 690-1609
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Usacs Community Emergency Services Of Colorado, Inc. (NPI 1811522972, Denver, CO); Usacs Of Colorado Inc (NPI 1104452952, Denver, CO); Usacs Observation Medicine Services Of Colorado Inc. (NPI 1518491232, Lakewood, CO); Cogent Healthcare Of Missouri, Inc (NPI 1780961599, Fenton, MO); Slh Physicians LLC (NPI 1881668051, Saint Louis, MO); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Colorado School Of Medicine, Denver, class of 2014
## Record status
- **NPPES last updated:** January 25, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1326467440) · Data from the CMS NPPES public registry.