Stephen James Aguilar, MD
Internal Medicine Physician · Little Rock, AR
Stephen James Aguilar, MD is an internal medicine physician with a practice address in Little Rock, Arkansas, and NPI 1528758414, issued on May 12, 2023. Check the license (Arkansas E-20633, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- Stephen James Aguilar
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- E-20633 AR
Self-reported in NPPES; status is on the state search - Practice location
- 4301 W Markham St # 832, Little Rock, AR 72205
- Phone
- (501) 686-8000
- Enumerated
- May 12, 2023
- Record last updated
- Jul 16, 2026
- Fax
- (501) 526-5148
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 768 in Arkansas → Look up another NPI →
Also registered at 4301 W Markham St # 832
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephen James Aguilar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E-20633Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
34 Medicare Part D claims for 16 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of 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.
Stephen James Aguilar among 768 internal medicine physician records in Arkansas
Stephen James Aguilar, MD is one of 768 internal medicine physician records with a practice address in Arkansas. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 96% of them.
- NPI issued2023 · 96% of these records are older, under 1% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
219 internal medicine physician records list a practice address in Little Rock
They are 219 of the 13,172 NPPES records with a practice address in Little Rock, and 768 internal medicine physician records in Arkansas.
All 768 in Arkansas → Every provider in Little Rock → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Brian Bean, M.D.Little Rock, AR 722051003870049
- Eric Delgiacco, M.D.Little Rock, AR 722051285695973
- Raymond Edwards, M.D.Little Rock, AR 722051851371314
- Irol Gray, MDLittle Rock, AR 722051164429981
- Richard Johns, MDLittle Rock, AR 722051144214578
- Rana Kayali, M.D.Little Rock, AR 722051720041577
- Lubna Maruf, M.D.Little Rock, AR 722051336119536
- Solomon Mogbo, M.DLittle Rock, AR 722051083615348
Common questions
What is Stephen James Aguilar, MD's NPI number?
Stephen James Aguilar, MD's National Provider Identifier (NPI) is 1528758414, issued on May 12, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Stephen James Aguilar, MD located?
The NPPES record lists a practice address at 4301 W Markham St # 832, Little Rock, AR, 72205. Phone: (501) 686-8000. Providers update this record themselves, so call before visiting.
How can I verify Stephen James Aguilar, MD's license?
NPPES lists Arkansas license number E-20633, 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 Stephen James Aguilar, MD prescribe under Medicare Part D?
In 2024, Stephen James Aguilar, MD had 34 Medicare Part D claims for 16 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.