William P. Williamson, M.D.
Physical Medicine & Rehabilitation Physician · Louisville, KY
William P. Williamson, M.D. is a physical medicine & rehabilitation physician with a practice address in Louisville, Kentucky, and NPI 1659345890, issued on Feb 15, 2006. Check the license (Kentucky 25809, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- William P. Williamson
- Credential
- M.D.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- 25809 KY
Self-reported in NPPES; status is on the state search - Practice location
- 220 Abraham Flexner Way, Louisville, KY 40202
- Phone
- (502) 584-3376
- Enumerated
- Feb 15, 2006
- Record last updated
- Jun 9, 2022
- Fax
- (502) 584-1385
- Medicaid IDs
- 200024010 IN
64258098 KY - Medicare enrollment
- Enrolled (PECOS I20100929000782); accepts Medicare assignment
- Medical or professional school
- University Of Louisville School Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 158 in Kentucky → Look up another NPI →
Also registered at 220 Abraham Flexner Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Katherine Brown, PA-CPhysician Assistant1235536806
- Jenna Cleversley, PSYDPsychologist1528816683
- Allison Connors, PHDClinical Neuropsychologist1598335432
- Vivien Dang, MDStudent in an Organized Health Care Education/Training Program1306306410
Verify William P. Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 25809Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
100 Medicare Part D claims for 22 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium12 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
William P. Williamson among 158 physical medicine & rehabilitation physician records in Kentucky
William P. Williamson, M.D. is one of 158 physical medicine & rehabilitation physician records with a practice address in Kentucky. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 64% newer
- In a Medicare fileYes · 58% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1986 · median 2009 among the 82 with a school on file
- Record last updated2022 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Kentucky
There are 158 physical medicine & rehabilitation physician records in Kentucky.
All 158 in Kentucky → Every provider in Louisville → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Emily Boyd, MBBSLouisville, KY 402021356787279
- Camilo Castillo, MDLouisville, KY 402021093903072
- Lindsay Graves, D.O.Louisville, KY 402021568800282
- David Haustein, MDLouisville, KY 402021003922873
- Joshua HeathLouisville, KY 402021205369386
- Darryl Kaelin, MDLouisville, KY 402021922027044
- Daniel Kean, MDLouisville, KY 402021407866528
- Thomas Kelly, M.D.Louisville, KY 402021306036975
Common questions
What is William P. Williamson, M.D.'s NPI number?
William P. Williamson, M.D.'s National Provider Identifier (NPI) is 1659345890, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William P. Williamson, M.D. located?
The NPPES record lists a practice address at 220 Abraham Flexner Way, Louisville, KY, 40202. Phone: (502) 584-3376. Providers update this record themselves, so call before visiting.
How can I verify William P. Williamson, M.D.'s license?
NPPES lists Kentucky license number 25809, 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 William P. Williamson, M.D. prescribe under Medicare Part D?
In 2024, William P. Williamson, M.D. had 100 Medicare Part D claims for 22 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
What is William P. Williamson, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.