NPPES file of Aug 9, 2026

Hyung Won Choi, M.D.

Diagnostic Radiology Physician · Orange, CA

Hyung Won Choi, M.D. is a diagnostic radiology physician with a practice address in Orange, California, and NPI 1659783405, issued on May 28, 2014. Check the license (California A138866, as entered in NPPES) on the Medical Board of California; 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
1659783405
Name
Hyung Won Choi
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A138866 CA
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(714) 456-7237
Enumerated
May 28, 2014
Record last updated
Nov 4, 2022
Medicare enrollment
Enrolled (PECOS I20170427001558); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 2014
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 101 The City Dr S

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

  1. Danny Abad, PAPhysician Assistant1477158673
  2. Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
  3. Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
  4. Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
  5. Eric AbelloOtolaryngology Physician1922566215
  6. Brandon Abeyta, MDAnesthesiology Physician1841291804

Verify Hyung Won Choi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A138866
    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 California 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. UC RegentsOrange, CA

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

122 diagnostic radiology physician records list a practice address in Orange

They are 122 of the 13,245 NPPES records with a practice address in Orange, and 4,500 diagnostic radiology physician records in California.

Other diagnostic radiology physician records in California

  1. Jason Aaronson, MDLos Angeles, CA1023145463
  2. Brianna Abadie, M.D.Van Nuys, CA1861811291
  3. Kenric Aban, M.D.Oceanside, CA1336218023
  4. Pablo Abbona, MDLos Angeles, CA1689856239
  5. Rashed AbdelaalRiverside, CA1518726090
  6. Ahmed Abdelhalim, MDRiverside, CA1275162927
  7. Fatemeh Abdollahi Mofakham, MDLos Angeles, CA1659652915
  8. Bennett Abe, MDVisalia, CA1184731283
  9. Stephen Abedon, M.D.Daly City, CA1689628687
  10. Richard Abello, M.D.La Jolla, CA1245205996

Common questions

What is Hyung Won Choi, M.D.'s NPI number?

Hyung Won Choi, M.D.'s National Provider Identifier (NPI) is 1659783405, issued on May 28, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Hyung Won Choi, M.D. located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 456-7237. Providers update this record themselves, so call before visiting.

How can I verify Hyung Won Choi, M.D.'s license?

NPPES lists California license number A138866, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.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.