Gerard K. Williams, MD
Internal Medicine Physician · Lafayette, LA
Gerard K. Williams, MD is an internal medicine physician with a practice address in Lafayette, Louisiana, and NPI 1295728749, issued on Aug 30, 2005. Check the license (Louisiana 13692R, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Gerard K. Williams
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 13692R LA
Self-reported in NPPES; status is on the state search - Practice location
- 901 W Gloria Switch RD, Lafayette, LA 70507
- Phone
- (337) 886-0023
- Enumerated
- Aug 30, 2005
- Record last updated
- Mar 22, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (337) 886-0067
- Medicaid ID
- 1431486 LA
- Medicare enrollment
- Enrolled (PECOS I20060405000007); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 1996
- Entity
- Type 1 · individual
Also registered at 901 W Gloria Switch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shelby Perkins, DDSGeneral Practice Dentistry1891426672
- Arianna Soileau, FNP-CFamily Nurse Practitioner1649586173
- Yolanda Williams, D.D.SGeneral Practice Dentistry1013039940
Verify Gerard K. 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 13692RCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.6 times the Medicare Part D claims of the average internal medicine physician in 2024
14,472 Medicare Part D claims for 346 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 404 claims were for opioids.
Most prescribed
- Amlodipine Besylate629 claims
- Atorvastatin Calcium567 claims
- Levothyroxine Sodium410 claims
- Gabapentin357 claims
- Metformin Hcl328 claims
- Furosemide327 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: $157.10
7 payments; by number, the most common kind was food and beverage; the largest payer was Corium, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Gerard K. Williams MD ApmcLafayette, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
107 internal medicine physician records list a practice address in Lafayette
They are 107 of the 5,181 NPPES records with a practice address in Lafayette, and 1,749 internal medicine physician records in Louisiana.
All 107 in Lafayette → All 1,749 in Louisiana → Every provider in Lafayette →
Other internal medicine physician records in Louisiana
- Alfred Abaunza, M.D.New Orleans, LA1093994287
- David Abdehou, MDShreveport, LA1568471993
- Youssef Abdelmalek, M.DAlexandria, LA1639553233
- Mohammed Abdelsalam, MDNew Orleans, LA1922740190
- Mary Abell, M.D.New Orleans, LA1083631089
- Shema Abraham, M.DLafayette, LA1285053405
- Candice Abuso, MDHarvey, LA1780670489
- Aaron Ackley, M.D.Lafayette, LA1699209015
- Marc Acosta, M.D.Metairie, LA1891868840
- Scott Acosta, MDMarrero, LA1023018199
Common questions
What is Gerard K. Williams, MD's NPI number?
Gerard K. Williams, MD's National Provider Identifier (NPI) is 1295728749, issued on Aug 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gerard K. Williams, MD located?
The NPPES record lists a practice address at 901 W Gloria Switch RD, Lafayette, LA, 70507. Phone: (337) 886-0023. Providers update this record themselves, so call before visiting.
How can I verify Gerard K. Williams, MD's license?
NPPES lists Louisiana license number 13692R, 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 Gerard K. Williams, MD prescribe under Medicare Part D?
In 2024, Gerard K. Williams, MD had 14,472 Medicare Part D claims for 346 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.