DR. CARSON BARRETT WALKER MD
NPI 1104453299
Surgery in Billings, MT

Q: What is Carson Walker's NPI number?

The NPI number for Carson Walker is 1104453299. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Q: What is Carson Walker's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Carson Walker was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since March 26, 2020PECOS EnrolledAccepts Medicare Assignment

2900 12TH AVE N STE 355W, BILLINGS, MT 59101(406) 238-6470(406) 238-6499 Get Directions Write a Review

NPPES record last updated: June 25, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 25, 2025, May 19, 2021, Mar 26, 2020 (3 updates tracked since 2020).

On this page

About Dr. Carson Barrett Walker Md NPPES

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

DR. CARSON BARRETT WALKER MD (NPI 1104453299) is an individual surgery provider in Billings, Montana, licensed in Montana (MED-PHYS-LIC-158516) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with St Vincent Healthcare, and maintains a secondary practice location in Denver.

NPPES Registry Identity

NPI1104453299

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. CARSON BARRETT WALKERCredential: MD

Location Address2900 12TH AVE N STE 355WBillings, MT 59101-0176

Mailing Address1960 N Ogden St Ste 400Denver, CO 80218-3670

Phone(406) 238-6470

Fax(406) 238-6499

Sole ProprietorNo

Medical School CMSUniversity Of Colorado School Of Medicine, AuroraGraduated 2020

Enumeration DateMarch 26, 2020

Last NPPES UpdateJune 25, 20253 updates tracked since enumeration

NPPES CertifiedJune 25, 2025

✔ NPI 1104453299 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in MT · MED-PHYS-LIC-158516

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

2900 12TH AVE N STE 355W, Billings, MT 59101

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Secondary Practice Location 1

Location 11960 N Ogden St Ste 400Denver, CO 80218-3670 · Phone (303) 318-1585

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.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Carson Barrett Walker Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4284051368

PECOS Enrollment IDI20250805002221

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.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Vincent Healthcare

Acute Care Hospitals · Billings, MT

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number270049

Location1233 N 30th StBillings, MT 59101 · Yellowstone County

Emergency services Birthing friendly

Holy Rosary Healthcare

Critical Access Hospitals · Miles City, MT

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number271347

Location2600 Wilson StMiles City, MT 59301 · Custer County

Emergency services Birthing friendly

Cody Regional Health

Critical Access Hospitals · Cody, WY

OwnershipGovernment - Hospital District or Authority

CMS Certification Number531312

Location707 Sheridan AvenueCody, WY 82414 · Park County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59101 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

$70.82 typical visit price

range $18.24 – $140.32

Typical copayment $17.70 (range $4.56 – $35.08)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Carson Walker's NPI number?

The NPI number for Carson Walker is 1104453299. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Where is Carson Walker located?

Carson Walker practices at 2900 12th Ave N Ste 355W, Billings, MT 59101. The listed phone number is (406) 238-6470.

What is Carson Walker's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Carson Walker enrolled in Medicare?

Yes. Carson Walker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Carson Walker accept?

Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Carson Walker 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.

Is Carson Walker affiliated with any hospitals?

According to CMS data, Carson Walker is affiliated with St Vincent Healthcare, Holy Rosary Healthcare and Cody Regional Health.

When was this NPI record last updated?

The NPPES record for Carson Walker was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.