Brett Alan Williams, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Great Falls, MT
Brett Alan Williams, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Great Falls, Montana, and NPI 1639236011, issued on Jan 3, 2007. Check the license (Montana 6726, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Brett Alan Williams
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License number
- 6726 MT
Self-reported in NPPES; status is on the state search - Practice location
- 1300 28TH Street South, Great Falls, MT 59405
- Phone
- (406) 761-6500
- Enumerated
- Jan 3, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (406) 452-5140
- Medicaid ID
- 87269 MT
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 23 in Montana → Look up another NPI →
Verify Brett Alan Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 6726Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
41 Medicare Part D claims for 19 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D.
Most prescribed
- Cilostazol11 claims
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.
The MIPS final score for 2023 (Medicare payment program): 87.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $119.00
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Brett Alan Williams among 23 thoracic surgery (cardiothoracic vascular surgery) physician records in Montana
Brett Alan Williams, MD is one of 23 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Montana. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 57% of them.
- NPI issued2007 · 57% of these records are older, 26% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2007 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Montana
There are 23 thoracic surgery (cardiothoracic vascular surgery) physician records in Montana.
All 23 in Montana → Every provider in Great Falls → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Roberto Amado-Cattaneo, MDGreat Falls, MT 594051073700225
- Osama Ben Hameid, MDGreat Falls, MT 594051205786829
- Dimitrios Koudoumas, M.D., PH.DGreat Falls, MT 594051639456767
- Alfredo Ramirez, M.D.Great Falls, MT 594051003829417
- Constance Haan, M.D.Billings, MT 591021790750305
- Hewes Agnew, MDBillings, MT 591011285703330
- Eric Howell, MDBillings, MT 591011942543608
- Alexander Kraev, M.D.Billings, MT 591011841444197
Common questions
What is Brett Alan Williams, MD's NPI number?
Brett Alan Williams, MD's National Provider Identifier (NPI) is 1639236011, issued on Jan 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Brett Alan Williams, MD located?
The NPPES record lists a practice address at 1300 28TH Street South, Great Falls, MT, 59405. Phone: (406) 761-6500. Providers update this record themselves, so call before visiting.
How can I verify Brett Alan Williams, MD's license?
NPPES lists Montana license number 6726, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brett Alan Williams, MD prescribe under Medicare Part D?
In 2024, Brett Alan Williams, MD had 41 Medicare Part D claims for 19 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.
What is Brett Alan Williams, MD's MIPS final score?
The 2023 MIPS final score is 87.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.