Gwendolyn Hewitt Mullinix, M.D.
Emergency Medicine Physician · Wheat Ridge, CO
Gwendolyn Hewitt Mullinix, M.D. is an emergency medicine physician with a practice address in Wheat Ridge, Colorado, and NPI 1265482186, issued on May 11, 2006. Check the license (Colorado 40747, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gwendolyn Hewitt Mullinix
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 40747 CO
Self-reported in NPPES; status is on the state search - Practice location
- 8300 W 38TH Ave, Wheat Ridge, CO 80033
- Phone
- (303) 425-8420
- Enumerated
- May 11, 2006
- Record last updated
- Aug 27, 2024
- Medicaid ID
- 89070879 CO
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,434 in Colorado → Look up another NPI →
Also registered at 8300 W 38TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kerry Arellana, NPCritical Care Neonatal Nurse Practitioner1396040044
- Lee Anne Auerhan, M.D.Anesthesiology Physician1437196094
- Elin Bartell, MDEmergency Medical Services (Emergency Medicine) Physician1548272354
Verify Gwendolyn Hewitt Mullinix in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 40747Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average emergency medicine physician in 2024
50 Medicare Part D claims for 22 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Gwendolyn Hewitt Mullinix among 1,434 emergency medicine physician records in Colorado
Gwendolyn Hewitt Mullinix, 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 57% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2024 · 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).
Emergency Medicine Physician providers in Colorado
There are 1,434 emergency medicine physician records in Colorado.
All 1,434 in Colorado → Every provider in Wheat Ridge → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jason Bellows, MDWheat Ridge, CO 800331952386757
- Todd Bickford, MDWheat Ridge, CO 800331053379719
- Klementyna Breyer, MDWheat Ridge, CO 800331073593562
- Travis Guthrie, M.D.Wheat Ridge, CO 800331235471632
- Nathan Karber, M.D.Wheat Ridge, CO 800331831317718
- David Leventhal, MDWheat Ridge, CO 800331801154323
- Stacy Page, DOWheat Ridge, CO 800331962767368
- Danielle Prunty, MDWheat Ridge, CO 800331659384048
Common questions
What is Gwendolyn Hewitt Mullinix, M.D.'s NPI number?
Gwendolyn Hewitt Mullinix, M.D.'s National Provider Identifier (NPI) is 1265482186, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gwendolyn Hewitt Mullinix, M.D. located?
The NPPES record lists a practice address at 8300 W 38TH Ave, Wheat Ridge, CO, 80033. Phone: (303) 425-8420. Providers update this record themselves, so call before visiting.
How can I verify Gwendolyn Hewitt Mullinix, M.D.'s license?
NPPES lists Colorado license number 40747, as entered by the provider. 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 Gwendolyn Hewitt Mullinix, M.D. prescribe under Medicare Part D?
In 2024, Gwendolyn Hewitt Mullinix, M.D. had 50 Medicare Part D claims for 22 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.