John D. Williamson, M.D.
Anatomic Pathology & Clinical Pathology Physician · Louisville, KY
John D. Williamson, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Louisville, Kentucky, and NPI 1154324598, issued on May 31, 2005. Check the license (Kentucky 34884, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- John D. Williamson
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- 34884 KY
Self-reported in NPPES; status is on the state search - Practice location
- 2307 Greene Way, Louisville, KY 40220
- Phone
- (502) 897-9594
- Enumerated
- May 31, 2005
- Record last updated
- Jul 6, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid IDs
- 200275000 IN
64016066 KY - Medicare enrollment
- Enrolled (PECOS I20101124000251); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 215 in Kentucky → Look up another NPI →
Also registered at 2307 Greene Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Annunziata, M.D.Anatomic Pathology & Clinical Pathology Physician1427478882
- Robin Bideau, M.D.Anatomic Pathology & Clinical Pathology Physician1013910678
- Rebecca Christensen, MDAnatomic Pathology & Clinical Pathology Physician1093718447
- Emma Coronel, M.D.Anatomic Pathology & Clinical Pathology Physician1831192210
- Cyrus Ghazi, M.D.Anatomic Pathology & Clinical Pathology Physician1528061991
- Victoria Graham, MDAnatomic Pathology Physician1457468589
Verify John D. Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 34884Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $135.61
1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. The 2,607 providers of this specialty with any payment received $3,565.00 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
- Clinical Associates LLCLouisville, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John D. Williamson among 215 anatomic pathology & clinical pathology physician records in Kentucky
John D. Williamson, M.D. is one of 215 anatomic pathology & clinical pathology physician records with a practice address in Kentucky. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 79% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1992 · median 2000 among the 125 with a school on file
- Record last updated2010 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anatomic Pathology & Clinical Pathology Physician providers in Kentucky
There are 215 anatomic pathology & clinical pathology physician records in Kentucky.
All 215 in Kentucky → Every provider in Louisville → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Robin Bideau, M.D.Louisville, KY 402201013910678
- Rebecca Christensen, MDLouisville, KY 402201093718447
- Emma Coronel, M.D.Louisville, KY 402201831192210
- Cyrus Ghazi, M.D.Louisville, KY 402201528061991
- Hasan Khalidi, M.D.Louisville, KY 402201841293206
- Linda Korfhage, M.D.Louisville, KY 402201124021530
- George Kunz, M.D.Louisville, KY 402201043213481
- Michael Nowacki, M.D.Louisville, KY 402201821091273
Common questions
What is John D. Williamson, M.D.'s NPI number?
John D. Williamson, M.D.'s National Provider Identifier (NPI) is 1154324598, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John D. Williamson, M.D. located?
The NPPES record lists a practice address at 2307 Greene Way, Louisville, KY, 40220. Phone: (502) 897-9594. Providers update this record themselves, so call before visiting.
How can I verify John D. Williamson, M.D.'s license?
NPPES lists Kentucky license number 34884, 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.
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.