DR. GWENDOLYN HEWITT MULLINIX (M.D.) – Emergency Medicine Physician, NPI 1265482186

DR. GWENDOLYN HEWITT MULLINIX (M.D.) is a healthcare provider. based in Indian hills, Colorado. specializing in Emergency Medicine Physician. They hold the professional credentials M.D.. They hold a License No. 40747 (CO). The NPI Number for DR. GWENDOLYN HEWITT MULLINIX (M.D.) is 1265482186

Main info

Female
26 Years Of Experience
Accepts Medicare Assignment
Name
DR. GWENDOLYN HEWITT MULLINIX (M.D.)
NPI
1265482186
Phone
(303) 459-4784
Address
PO BOX 1070
Enumeration Date
11 May 2006
Last Update Date
27 August 2024

Doctor Profile

Medical School Name
UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Secondary Phone
3033414411
Graduation Year
2000 (26 years ago)
PAC ID
1557340205
Group Practice PAC ID
3476888363
Professional Enrollment ID
I20040715001300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. GWENDOLYN HEWITT MULLINIX (M.D.)

  • PO BOX 1070

    INDIAN HILLS, CO 804541070

    Phone: (303) 459-4784

    Type: Mailing

  • 3529 PINE MEADOW AVE

    PARKER, CO 801384578

    Phone: (303) 506-7207

    Type: Mailing

  • Lutheran Medical Center, 8300, West 38th Avenue, Wheat Ridge, Jefferson County, Colorado, 80033, United States

    WHEAT RIDGE, CO 800336005

    Phone: (303) 425-8420

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-07-15

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040715001300IEmergency MedicineCOTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 80454)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3476888363View full group profile

Reviews

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Frequently asked questions

What is DR. GWENDOLYN HEWITT MULLINIX (M.D.)'s NPI number?
DR. GWENDOLYN HEWITT MULLINIX (M.D.)'s NPI is 1265482186 — the number used across U.S. healthcare to identify this provider.
Active or inactive — what applies to DR. GWENDOLYN HEWITT MULLINIX (M.D.)?
You should see DR. GWENDOLYN HEWITT MULLINIX (M.D.) as active in CMS-hosted NPPES data.
What expertise is attributed to DR. GWENDOLYN HEWITT MULLINIX (M.D.)?
DR. GWENDOLYN HEWITT MULLINIX (M.D.)'s specialty line reads Emergency Medicine Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with DR. GWENDOLYN HEWITT MULLINIX (M.D.)?
Directory geography for DR. GWENDOLYN HEWITT MULLINIX (M.D.) centers on Indian Hills, Colorado.
When was this NPI issued?
Enumeration for DR. GWENDOLYN HEWITT MULLINIX (M.D.) is noted as May 11, 2006 where the registry provides it.

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