Leon Douglas Williams, M.D.
Family Medicine Physician · Innis, LA
Leon Douglas Williams, M.D. is a family medicine physician with a practice address in Innis, Louisiana, and NPI 1386677102, issued on Jul 7, 2006. Check the license (Louisiana 200787, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Leon Douglas Williams
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 200787 LA
Self-reported in NPPES; status is on the state search - Practice location
- 6450 Louisiana Highway 1, Innis, LA 70747
- Phone
- (225) 492-3775
- Enumerated
- Jul 7, 2006
- Record last updated
- Dec 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (225) 492-3782
- Medicaid ID
- 1071056 LA
- Medicare enrollment
- Enrolled (PECOS I20150729009161); accepts Medicare assignment
- Medical or professional school
- Medical College Of Ohio, 2004
- Entity
- Type 1 · individual
Also registered at 6450 Louisiana Highway 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Leon Douglas Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 200787Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average family medicine physician in 2024
3,171 Medicare Part D claims for 443 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 211 claims were for opioids.
Most prescribed
- Amlodipine Besylate176 claims
- Hydrocodone-Acetaminophen174 claims
- Atorvastatin Calcium170 claims
- Losartan Potassium94 claims
- Albuterol Sulfate Hfa90 claims
- Famotidine88 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.
Bills Medicare through one group practice
- Permanente Medical Group IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Family Medicine Physician providers in Louisiana
There are 1,728 family medicine physician records in Louisiana.
Other family medicine physician records in Louisiana
- Brittany Abadie, NPGramercy, LA1437077054
- Ubaid Abbasi, MDBaton Rouge, LA1548765738
- Claire Abel, APRNIowa, LA1821931635
- Lamia Abisamra, MDMetairie, LA1912562489
- Ralph Abraham, MDRayville, LA1013962620
- Steven Abramson, M.D.Prairieville, LA1720086820
- Anshul Acharya, MDGretna, LA1437546488
- Christopher Achee, M.D.Jennings, LA1710947205
- Stefanie Acosta, MDLafayette, LA1629538665
- Rodney Acuna, MDLake Charles, LA1760708606
Common questions
What is Leon Douglas Williams, M.D.'s NPI number?
Leon Douglas Williams, M.D.'s National Provider Identifier (NPI) is 1386677102, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leon Douglas Williams, M.D. located?
The NPPES record lists a practice address at 6450 Louisiana Highway 1, Innis, LA, 70747. Phone: (225) 492-3775. Providers update this record themselves, so call before visiting.
How can I verify Leon Douglas Williams, M.D.'s license?
NPPES lists Louisiana license number 200787, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leon Douglas Williams, M.D. prescribe under Medicare Part D?
In 2024, Leon Douglas Williams, M.D. had 3,171 Medicare Part D claims for 443 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.