Jason L. Williams, MD
Sleep Medicine (Internal Medicine) Physician · Little Rock, AR
Jason L. Williams, MD is a sleep medicine (internal medicine) physician with a practice address in Little Rock, Arkansas, and NPI 1194764290, issued on Jun 5, 2006. Check the license (Arkansas E5433, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Jason L. Williams
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License number
- E5433 AR
Self-reported in NPPES; status is on the state search - Practice location
- 9500 Kanis RD, Little Rock, AR 72205
- Phone
- (501) 202-1902
- Enumerated
- Jun 5, 2006
- Record last updated
- Nov 6, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (501) 202-1512
- Medicare enrollment
- Enrolled (PECOS I20080225000043); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 2005
- Entity
- Type 1 · individual
6 nearest sleep medicine (internal medicine) physician records → All 7 in Arkansas → Look up another NPI →
Also registered at 9500 Kanis RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Davila, M.D.Sleep Medicine (Internal Medicine) Physician1275556599
- William Garner, M.D.Obstetrics & Gynecology Physician1518909431
- Courtney Garrard, R.N., RNFARegistered Nurse First Assistant1043428592
- Mark Gibbs, MDSurgery Physician1366494130
- Gary Goza, MDSleep Medicine (Psychiatry & Neurology) Physician1669430252
- Arthur Hall, PA-CMedical Physician Assistant1750772190
Verify Jason L. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E5433Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
135 Medicare Part D claims for 72 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D.
Most prescribed
- Zolpidem Tartrate35 claims
- Ropinirole Hcl18 claims
- Trazodone Hcl17 claims
- Pramipexole Dihydrochloride11 claims
- Zaleplon11 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: $1,072.03
45 payments; by number, the most common kind was food and beverage; the largest payer was Jazz Pharmaceuticals Inc. The 664 providers of this specialty with any payment received $3,724.37 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
- Arkansas Health GroupLittle Rock, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in Arkansas
There are 7 sleep medicine (internal medicine) physician records in Arkansas.
All 7 in Arkansas → Every provider in Little Rock → Sleep Medicine (Internal Medicine) Physician nationwide →
The 6 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- David Davila, M.D.Little Rock, AR 722051275556599
- Khaled Khasawneh, MDLittle Rock, AR 722051356370910
- Erica Williams, PA-CSearcy, AR 721431942774088
- Nanjunda Prabha, M.DBatesville, AR 725011528470200
- Michael Eckles, MDFayetteville, AR 727031548298466
- Dimitry Fomin, MDRogers, AR 727581831171263
Common questions
What is Jason L. Williams, MD's NPI number?
Jason L. Williams, MD's National Provider Identifier (NPI) is 1194764290, issued on Jun 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jason L. Williams, MD located?
The NPPES record lists a practice address at 9500 Kanis RD, Little Rock, AR, 72205. Phone: (501) 202-1902. Providers update this record themselves, so call before visiting.
How can I verify Jason L. Williams, MD's license?
NPPES lists Arkansas license number E5433, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jason L. Williams, MD prescribe under Medicare Part D?
In 2024, Jason L. Williams, MD had 135 Medicare Part D claims for 72 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. 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.