NPPES file of Aug 9, 2026

Alison Guest, M.D.

Emergency Medicine Physician · Englewood, CO

Alison Guest, M.D. is an emergency medicine physician with a practice address in Englewood, Colorado, and NPI 1538219340, issued on Jan 12, 2007. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538219340
Name
Alison Guest
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
TRN9219 FL
Self-reported in NPPES; status is on the state search
Practice location
501 E Hampden Ave, Englewood, CO 80113
Phone
(303) 788-5000
Enumerated
Jan 12, 2007
Record last updated
Jun 24, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 501 E Hampden Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Simeon Abramson, MDDiagnostic Radiology Physician1730129859
  2. Juan Acosta, MDInternal Medicine Physician1316919350
  3. Diane Ampe, NNPNeonatal Nurse Practitioner1437113818
  4. Kristin AndersonHospitalist Physician1265744262
  5. Rebekah Ashcraft, RNRegistered Nurse1700622479
  6. Timbre Backen, DOStudent in an Organized Health Care Education/Training Program1811524150

Verify Alison Guest in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical BoardCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

64% fewer Medicare Part D claims than the average emergency medicine physician in 2024

81 Medicare Part D claims for 51 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Alison Guest81
  2. Specialty average226

Most prescribed

  1. Ondansetron Odt13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Alison Guest among 1,434 emergency medicine physician records in Colorado

Alison Guest, M.D. is one of 1,434 emergency medicine physician records with a practice address in Colorado. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 47% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2008 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

38 emergency medicine physician records list a practice address in Englewood

They are 38 of the 2,840 NPPES records with a practice address in Englewood, and 1,434 emergency medicine physician records in Colorado.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Peter BakesEnglewood, CO 801131467435172
  2. Gregory BurchamEnglewood, CO 801131942283569
  3. Suzanne ChiltonEnglewood, CO 801131891778429
  4. Gretchen HinsonEnglewood, CO 801131962467357
  5. Christopher HolmesEnglewood, CO 801131336127679
  6. Delwin HuntEnglewood, CO 801131366428880
  7. Samuel KillianEnglewood, CO 801131447238365
  8. Mark KozlowskiEnglewood, CO 801131285610683

Common questions

What is Alison Guest, M.D.'s NPI number?

Alison Guest, M.D.'s National Provider Identifier (NPI) is 1538219340, issued on Jan 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alison Guest, M.D. located?

The NPPES record lists a practice address at 501 E Hampden Ave, Englewood, CO, 80113. Phone: (303) 788-5000. Providers update this record themselves, so call before visiting.

How can I verify Alison Guest, M.D.'s license?

Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alison Guest, M.D. prescribe under Medicare Part D?

In 2024, Alison Guest, M.D. had 81 Medicare Part D claims for 51 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.