Brent Duncan, M.D.
Family Medicine Physician · Louisville, KY
Brent Duncan, M.D. is a family medicine physician with a practice address in Louisville, Kentucky, and NPI 1376708438, issued on Jul 28, 2008. Check the license (Kentucky 44455, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Brent Duncan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 44455 KY
30782 SC
LL 30782 SC
Self-reported in NPPES; status is on the state search - Practice location
- 1720 W Broadway Ste 107, Louisville, KY 40203
- Phone
- (502) 340-5900
- Enumerated
- Jul 28, 2008
- Record last updated
- Sep 26, 2022
- Fax
- (502) 394-3691
- Medicaid ID
- 7100166700 KY
- Medicare enrollment
- Enrolled (PECOS I20110713000881); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,968 in Kentucky → Look up another NPI →
Also registered at 1720 W Broadway Ste 107
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Arnett, M.D.Internal Medicine Physician1467451054
- Krista Garza, N.P.Nurse Practitioner1881766269
- Eugene Giles, M.D.Internal Medicine Physician1558355438
- Janneve Sankawulo, APRNFamily Nurse Practitioner1356954366
- Samuel Simkoff, APRNFamily Nurse Practitioner1548032386
- Domini Williams, APRNFamily Nurse Practitioner1982211405
Verify Brent Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 44455Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average family medicine physician in 2024
11,149 Medicare Part D claims for 497 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 143 claims were for opioids.
Most prescribed
- Atorvastatin Calcium643 claims
- Amlodipine Besylate553 claims
- Losartan Potassium338 claims
- Albuterol Sulfate Hfa276 claims
- Lisinopril236 claims
- Levothyroxine Sodium224 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $46.30
1 payment: food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Bills Medicare through one group practice
- Community Medical Associates IncLouisville, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brent Duncan among 1,968 family medicine physician records in Kentucky
Brent Duncan, M.D. is one of 1,968 family medicine physician records with a practice address in Kentucky. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 58% of them.
- NPI issued2008 · 58% of these records are older, 39% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2008 · median 2006 among the 1,277 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
344 family medicine physician records list a practice address in Louisville
They are 344 of the 21,891 NPPES records with a practice address in Louisville, and 1,968 family medicine physician records in Kentucky.
All 1,968 in Kentucky → Every provider in Louisville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joshua Bentley, M.D.Louisville, KY 402041578862033
- Keturah BoweLouisville, KY 402021659909513
- Christopher Corrales, DOLouisville, KY 402021336630656
- Charles Cunningham, MDLouisville, KY 402021851978431
- David Davis, M.D.Louisville, KY 402021396108569
- Amanda Dobbins, MDLouisville, KY 402021407317787
- Kelsey EmbryLouisville, KY 402021427903988
- Richard Gibson, M.D.Louisville, KY 402041275916561
Common questions
What is Brent Duncan, M.D.'s NPI number?
Brent Duncan, M.D.'s National Provider Identifier (NPI) is 1376708438, issued on Jul 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Brent Duncan, M.D. located?
The NPPES record lists a practice address at 1720 W Broadway Ste 107, Louisville, KY, 40203. Phone: (502) 340-5900. Providers update this record themselves, so call before visiting.
How can I verify Brent Duncan, M.D.'s license?
NPPES lists Kentucky license number 44455, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brent Duncan, M.D. prescribe under Medicare Part D?
In 2024, Brent Duncan, M.D. had 11,149 Medicare Part D claims for 497 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Brent Duncan, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.