Martha Ann Knighton, M.D.
Family Medicine Physician · Louisville, KY
Martha Ann Knighton, M.D. is a family medicine physician with a practice address in Louisville, Kentucky, and NPI 1871779488, issued on Jan 14, 2008. Check the license (Kentucky 41487, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Martha Ann Knighton
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 41487 KY
01065560A IN
Self-reported in NPPES; status is on the state search - Practice location
- 200 E Chestnut St, Louisville, KY 40202
- Phone
- (502) 629-5552
- Enumerated
- Jan 14, 2008
- Record last updated
- Sep 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (502) 629-3132
- Medicaid ID
- 200906100 IN
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,968 in Kentucky → Look up another NPI →
Also registered at 200 E Chestnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Martha Ann Knighton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 41487Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
35 Medicare Part D claims for 19 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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).
Martha Ann Knighton among 1,968 family medicine physician records in Kentucky
Martha Ann Knighton, 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 fileNo · 65% of these records are
- Record last updated2021 · 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
- Jonathan Becker, MDLouisville, KY 402021235132333
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- John Hines, M.D.Louisville, KY 402021194780171
- Karen Krigger, MD EDDLouisville, KY 402021487632386
- Brian Marcum, M.D.Louisville, KY 402021770680811
- Perry Meadows, M.D.Louisville, KY 402021215901772
- Son Nguyen, MDLouisville, KY 402021902981582
- Donna Roberts, MDLouisville, KY 402021134170079
Common questions
What is Martha Ann Knighton, M.D.'s NPI number?
Martha Ann Knighton, M.D.'s National Provider Identifier (NPI) is 1871779488, issued on Jan 14, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Martha Ann Knighton, M.D. located?
The NPPES record lists a practice address at 200 E Chestnut St, Louisville, KY, 40202. Phone: (502) 629-5552. Providers update this record themselves, so call before visiting.
How can I verify Martha Ann Knighton, M.D.'s license?
NPPES lists Kentucky license number 41487, 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 Martha Ann Knighton, M.D. prescribe under Medicare Part D?
In 2024, Martha Ann Knighton, M.D. had 35 Medicare Part D claims for 19 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Martha Ann Knighton, 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.