Registry data as of Aug 27, 2026

Stephen Aguilar, MD

Internal Medicine Physician · Little Rock, AR

Stephen 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.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1528758414
Name
Stephen 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
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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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.

  1. Benjamin Blaske, MDStudent in an Organized Health Care Education/Training Program1801582432
  2. Sydney Edson, MDInternal Medicine Physician1023703261
  3. Jacqueline Kepler, MDStudent in an Organized Health Care Education/Training Program1013658780
  4. Jorge Saucedo, MDInternal Medicine Physician1598734337
  5. Kristyl Woolsey, APRNGerontology Nurse Practitioner1871976852
  6. Edward Yeh, M.D.Cardiovascular Disease Physician1851496194

Verify Stephen Aguilar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license E-20633
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Arkansas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.

  1. Stephen Aguilar34
  2. Specialty average2,785

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.

287 internal medicine physician records list a Little Rock practice address

They are 287 of the 13,172 NPPES records with a Little Rock practice address, and 874 internal medicine physician records in Arkansas.

Other internal medicine physician records in Arkansas

  1. Sherry AbaderLittle Rock, AR1215515002
  2. Ahmed Abdelal, M.D.Little Rock, AR1548265572
  3. Lee Abel, M.D.Little Rock, AR1558399980
  4. Ahmed Abuabdou, M.D.Little Rock, AR1245547702
  5. Yuba Acharya, M.D.Hot Springs, AR1376716290
  6. Audie Aderholt, M.D.Little Rock, AR1366861601
  7. Salma Ahi, MDLittle Rock, AR1467339333
  8. Ragda Ahmed, MDBatesville, AR1609571405
  9. Olivia Ahrendsen, MDNorth Little Rock, AR1700373818
  10. Refayat Ahsen, MDJonesboro, AR1003435108

Common questions

What is Stephen Aguilar, MD's NPI number?

Stephen 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 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 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 Aguilar, MD prescribe under Medicare Part D?

In 2024, Stephen Aguilar, MD had 34 Medicare Part D claims for 16 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.