NPPES file of Aug 9, 2026

Oscar H. Nguyen, MD

Pediatrics Physician · Little Rock, AR

Oscar H. Nguyen, MD is a pediatrics physician with a practice address in Little Rock, Arkansas, and NPI 1235767765, issued on Mar 30, 2020. Check the license (Arkansas E16963, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235767765
Name
Oscar H. Nguyen
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
E16963 AR
Self-reported in NPPES; status is on the state search
Practice location
27 Corporate Hill Dr Ste 100, Little Rock, AR 72205
Phone
(501) 227-6727
Enumerated
Mar 30, 2020
Record last updated
Jun 13, 2024
Fax
(501) 223-9462
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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Verify Oscar H. Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license E16963
    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.

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Industry payments in 2024: $176.35

10 payments; by number, the most common kind was food and beverage; the largest payer was Ironshore Pharmaceuticals Inc. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Oscar Nguyen$176.35
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Oscar H. Nguyen among 509 pediatrics physician records in Arkansas

Oscar H. Nguyen, MD is one of 509 pediatrics physician records with a practice address in Arkansas. 49% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.

  • NPI issued2020 · 89% of these records are older, 8% newer
  • In a Medicare fileYes · 49% of these records are
  • In the CMS Doctors and Clinicians fileNo · 13% of these records are
  • Record last updated2024 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

217 pediatrics physician records list a practice address in Little Rock

They are 217 of the 13,172 NPPES records with a practice address in Little Rock, and 509 pediatrics physician records in Arkansas.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Vincent Calderon, M.D.Little Rock, AR 722051972508513
  2. Anton Duke, MDLittle Rock, AR 722051235108150
  3. Diane Freeman, M.D.Little Rock, AR 722051467421099
  4. Kristi Hawkins, M.D.Little Rock, AR 722051124026166
  5. Ralph Herbert, M.D.Little Rock, AR 722051063492650
  6. Anthony Johnson, MDLittle Rock, AR 722051326017005
  7. Brad Kaemmerling, MDLittle Rock, AR 722051427030444
  8. Huber Kennedy, M.D.Little Rock, AR 722051477522431

Common questions

What is Oscar H. Nguyen, MD's NPI number?

Oscar H. Nguyen, MD's National Provider Identifier (NPI) is 1235767765, issued on Mar 30, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Oscar H. Nguyen, MD located?

The NPPES record lists a practice address at 27 Corporate Hill Dr Ste 100, Little Rock, AR, 72205. Phone: (501) 227-6727. Providers update this record themselves, so call before visiting.

How can I verify Oscar H. Nguyen, MD's license?

NPPES lists Arkansas license number E16963, 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.

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.