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DR. BRETT ALAN WILLIAMS MD
NPI 1639236011
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Great Falls, MT

Active since January 03, 2007PECOS Enrolled
87.26/100
CMS Quality Rating
1300 28TH STREET SOUTH, SUITE 8, GREAT FALLS, MT 59405(406) 761-6500(406) 452-5140 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Brett Alan Williams Md NPPES

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

DR. BRETT ALAN WILLIAMS MD (NPI 1639236011) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Great Falls, Montana, licensed in Montana (6726) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639236011
Entity TypeIndividualMale
Primary Taxonomy208G00000X
Provider Legal NameDR. BRETT ALAN WILLIAMSCredential: MD
Location Address1300 28TH STREET SOUTH, SUITE 8Great Falls, MT 59405
Mailing Address1300 28th Street South, Suite 8Great Falls, MT 59405 · (406) 761-6500 · Fax (406) 452-5140
Phone(406) 761-6500
Fax(406) 452-5140
Sole ProprietorNo
Enumeration DateJanuary 3, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1639236011 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
License✔ Licensed in MT · 6726
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
1300 28TH STREET SOUTH, Great Falls, MT 59405
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Other Identifiers 3

Medicare ID-Type Unspecified84724MT
Medicaid87269MT
Medicare UPINE60493

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Mountain Health CO-OP, PacificSource Health Plans, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Brett Alan Williams 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.

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
$172.26 typical visit price
range $56.81 – $172.26
Typical copayment $43.06 (range $14.20 – $43.06)
Most-billed visit code 99205
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.26/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.97
Promoting Interoperability85.91
Improvement Activities40

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BENEFIS HOSPITALS, INC.
Pediatrics
1300 28TH STREET SOUTH, PEDIATRICS
GREAT FALLS, MT 59405
Cascade County (406) 731-8888
MONTANA HEART PC
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1300 28TH STREET SOUTH, SUITE 8
GREAT FALLS, MT 59405
Cascade County (406) 761-6500

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 Brett Williams's NPI number?

The NPI number for Brett Williams is 1639236011. It was assigned to this individual provider in the NPPES registry on January 3, 2007.

Where is Brett Williams located?

Brett Williams practices at 1300 28th Street South Suite 8, Great Falls, MT 59405. The listed phone number is (406) 761-6500.

What is Brett Williams's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Brett Williams enrolled in Medicare?

Yes. Brett Williams is registered in the Medicare PECOS enrollment system.

What insurance does Brett Williams accept?

Health plans from Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Brett Williams 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 Brett Williams was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.