ALISON GUEST M.D.
NPI 1538219340
Emergency Medicine in Englewood, CO
About Alison Guest M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALISON GUEST M.D. (NPI 1538219340) is an individual emergency medicine provider in Englewood, Colorado, licensed in Florida (TRN9219) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alison Guest M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Alison Guest reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Denver, CO 80231
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Carepoint PC
- 99 clinicians in this Medicare group
Brighton, CO 80601
- Reassigned Medicare billing, Colorado enrollment
- 31 clinicians in this Medicare group
Cheyenne, WY 82001
- Reassigned Medicare billing, Wyoming enrollment
- 76 clinicians in this Medicare group
Laramie, WY 82072
- Reassigned Medicare billing, Wyoming enrollment
- 146 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80113 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
ENGLEWOOD, CO 80113
ENGLEWOOD, CO 80113
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 Alison Guest's NPI number?
The NPI number for Alison Guest is 1538219340. It was assigned to this individual provider in the NPPES registry on January 12, 2007.
Where is Alison Guest located?
Alison Guest practices at 501 E Hampden Ave, Englewood, CO 80113. The listed phone number is (303) 788-5000.
What is Alison Guest's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alison Guest enrolled in Medicare?
Yes. Alison Guest is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alison Guest's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alison Guest reassigns Medicare benefits to 4 organizations: Carepoint P.C. (Denver, CO), Brighton Community Emergency Physicians Lpa (Brighton, CO), Summit Medical Group, LLC (Cheyenne, WY) and Ivinson Memorial Hospital (Laramie, WY). 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 Alison Guest's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alison Guest accept?
Health plans from Blue Cross Blue Shield of Wyoming and Select Health list Alison Guest 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.
When was this NPI record last updated?
The NPPES record for Alison Guest was last updated on June 24, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Alison Guest, M.D. · NPI 1538219340
Emergency Medicine physician in Englewood, Colorado. Individual provider, active in the CMS NPPES registry since January 12, 2007.
## Identity
- **NPI:** 1538219340 (Entity type: Individual)
- **Enumerated:** January 12, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** TRN9219 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 501 E HAMPDEN AVE, Englewood, CO 80113-2702
- **Phone:** (303) 788-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Carepoint P.C. (NPI 1275516346, Denver, CO); Brighton Community Emergency Physicians Lpa (NPI 1639454242, Brighton, CO); Summit Medical Group, LLC (NPI 1457802993, Cheyenne, WY); Ivinson Memorial Hospital (NPI 1033628599, Laramie, WY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 24, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1538219340) · Data from the CMS NPPES public registry.