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COLLEEN M MARRON MD
NPI 1073514931
Pediatrics in Great Falls, MT

Active since August 02, 2005PECOS Enrolled
1400 29TH ST S, GREAT FALLS, MT 59405(406) 454-2171(406) 771-3021 Get Directions Write a Review

NPPES record last updated: July 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Colleen M Marron Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

COLLEEN M MARRON MD (NPI 1073514931) is an individual pediatrics provider in Great Falls, Montana, licensed in Montana (7770) and active in the NPI registry since August 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1073514931
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameCOLLEEN M MARRONCredential: MD
Location Address1400 29TH ST SGreat Falls, MT 59405-5353
Mailing Address1400 29th St SGreat Falls, MT 59405-5353 · (406) 454-2171 · Fax (406) 771-3021
Phone(406) 454-2171
Fax(406) 771-3021
Sole ProprietorNo
Enumeration DateAugust 2, 2005
Last NPPES UpdateJuly 21, 2026
NPPES CertifiedJuly 21, 2026
✔ NPI 1073514931 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MT · 7770
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Also ListedClinic/Center · Primary CareTaxonomy 261QP2300X · License MED-PHYS-LIC-7770 (MT)
1400 29TH ST S, Great Falls, MT 59405
Open in Google Maps ↗

Other Identifiers 1

Medicaid0013416MT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Colleen M Marron Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Colleen Marron reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Great Falls Clinic LLC
0.2 mi
Multi-Specialty
3000 15TH AVE S
Great Falls, MT 59405
  • Reassigned Medicare billing, Montana enrollment
  • 119 clinicians in this Medicare group
NPI 1801897780 (406) 454-2171

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$87.97 typical visit price
range $56.81 – $172.26
Typical copayment $21.99 (range $14.20 – $43.06)
Most-billed visit code 99203
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JESSIE HARRIS
Social Worker
1400 29TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 771-5800
JAMES H ASTHALTER DO
Family Medicine
1400 29TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 454-2171
ELISABETH A LINCOLN CRNP
Nurse Practitioner (Pediatrics)
1400 29TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 454-2171
FRANCIS J HANDWERK MD
Obstetrics & Gynecology
1400 29TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 454-2171
AMY K. ROBERTS M.D.
Family Medicine
1400 29TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 454-2171
STEVEN P AKRE MD
Internal Medicine (Rheumatology)
1400 29TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 454-2171
DR. GEORGE MARK SEAL M.D.
Urology
1400 29TH ST S
GREAT FALLS, MT 59405
Cascade County (406) 454-2171
VICKI L CHAPMAN DO
Obstetrics & Gynecology (Gynecology)
1400 29TH ST S, STE 101
GREAT FALLS, MT 59405
Cascade County (406) 761-7924

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 Colleen Marron's NPI number?

The NPI number for Colleen Marron is 1073514931. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Where is Colleen Marron located?

Colleen Marron practices at 1400 29th St S, Great Falls, MT 59405. The listed phone number is (406) 454-2171.

What is Colleen Marron's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Colleen Marron enrolled in Medicare?

Yes. Colleen Marron is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Colleen Marron's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Colleen Marron reassigns Medicare benefits to Great Falls Clinic LLC (Great Falls, MT). The 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 Colleen Marron's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Colleen Marron accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Colleen Marron 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 Colleen Marron was last updated on July 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.