Katherine L. Williams, M.D.
Specialist · Covington, LA
Katherine L. Williams, M.D. is a specialist with a practice address in Covington, Louisiana, and NPI 1851363550, issued on Feb 6, 2006. Check the license (Louisiana 022401, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine L. Williams
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 022401 LA
Self-reported in NPPES; status is on the state search - Practice location
- 104 Innwood Drive, Covington, LA 70433
- Phone
- (985) 249-7022
- Enumerated
- Feb 6, 2006
- Record last updated
- Jul 20, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 1493431 LA
- Medicare enrollment
- Enrolled (PECOS I20040617000178); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1994
- Entity
- Type 1 · individual
Also registered at 104 Innwood Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Brewster, WHNPObstetrics & Gynecology Nurse Practitioner1144492794
Verify Katherine L. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license 022401Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average specialist in 2024
241 Medicare Part D claims for 58 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Progesterone56 claims
- Estradiol (Twice Weekly)28 claims
- Estradiol26 claims
- Clobetasol Propionate18 claims
- Buspirone Hcl14 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.
Industry payments in 2024: $657.52
40 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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
- Katherine L. Williams, MD ApmcCovington, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Specialist providers in Louisiana
There are 550 specialist records in Louisiana.
Other specialist records in Louisiana
- Fadi Abou-Issa, MDHouma, LA1184637084
- Tamer Acikalin, M.D.Marrero, LA1578673141
- Elsie Adams, MSWNew Orleans, LA1427242429
- Deborah Adcock, M.D.Shreveport, LA1720013261
- Iqbal Ahmad, M.D.Baton Rouge, LA1982754818
- Safeer Ahmad, M.D.Slidell, LA1407858756
- Richard Airhart, M.D.Metairie, LA1013909266
- Robert Alexander, M.D.Houma, LA1508845645
- Raghavarao Alla, M.D.Pineville, LA1518962638
- Sigrid Allenstein, PTZachary, LA1194175810
Common questions
What is Katherine L. Williams, M.D.'s NPI number?
Katherine L. Williams, M.D.'s National Provider Identifier (NPI) is 1851363550, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine L. Williams, M.D. located?
The NPPES record lists a practice address at 104 Innwood Drive, Covington, LA, 70433. Phone: (985) 249-7022. Providers update this record themselves, so call before visiting.
How can I verify Katherine L. Williams, M.D.'s license?
NPPES lists Louisiana license number 022401, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine L. Williams, M.D. prescribe under Medicare Part D?
In 2024, Katherine L. Williams, M.D. had 241 Medicare Part D claims for 58 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
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.