NPPES file of Aug 9, 2026

Alexander Seung-Hwan Oh, MD

Diagnostic Radiology Physician · Plano, TX

Alexander Seung-Hwan Oh, MD is a diagnostic radiology physician with a practice address in Plano, Texas, and NPI 1871121582, issued on Mar 29, 2020. Check the license (Texas U6309, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1871121582
Name
Alexander Seung-Hwan Oh
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
U6309 TX
Self-reported in NPPES; status is on the state search
Practice location
6200 W Parker RD, Plano, TX 75093
Phone
(972) 981-8000
Enumerated
Mar 29, 2020
Record last updated
Jun 10, 2026
Medicare enrollment
Enrolled (PECOS I20250916002837); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6200 W Parker RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Claudia Adjei, NPAcute Care Nurse Practitioner1548085889
  2. Nancy Adler, RD, LD, CNSDRegistered Dietitian1245419738
  3. Irene AhmedStudent in an Organized Health Care Education/Training Program1225977945
  4. Thomas Albert, M.D.Specialist1780627927
  5. Maryum AliStudent in an Organized Health Care Education/Training Program1750220448
  6. Mojgan AlinejadPharmacist1982324455

Verify Alexander Seung-Hwan Oh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license U6309
    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 Texas 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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Bills Medicare through one group practice

  1. Utmb Faculty Group PracticeGalveston, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alexander Seung-Hwan Oh among 3,124 diagnostic radiology physician records in Texas

Alexander Seung-Hwan Oh, MD is one of 3,124 diagnostic radiology physician records with a practice address in Texas. 77% 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 94% of them.

  • NPI issued2020 · 94% of these records are older, 4% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2020 · median 2003 among the 2,277 with a school on file
  • Record last updated2026 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

100 diagnostic radiology physician records list a practice address in Plano

They are 100 of the 7,271 NPPES records with a practice address in Plano, and 3,124 diagnostic radiology physician records in Texas.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Mark Baker, DOPlano, TX 750931871536151
  2. Bruce Cheatham, M.D.Plano, TX 750931356359863
  3. Jeffrey Diebner, MDPlano, TX 750931073571758
  4. Amanda Donohoe, MDPlano, TX 750931154360857
  5. David Kim, MDPlano, TX 750931306894340
  6. Patricia Krakos, MDPlano, TX 750931720027386
  7. Tuong Le, MDPlano, TX 750931902855471
  8. Doohi Lee, M.D.Plano, TX 750931790887222

Common questions

What is Alexander Seung-Hwan Oh, MD's NPI number?

Alexander Seung-Hwan Oh, MD's National Provider Identifier (NPI) is 1871121582, issued on Mar 29, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Seung-Hwan Oh, MD located?

The NPPES record lists a practice address at 6200 W Parker RD, Plano, TX, 75093. Phone: (972) 981-8000. Providers update this record themselves, so call before visiting.

How can I verify Alexander Seung-Hwan Oh, MD's license?

NPPES lists Texas license number U6309, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. 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.