James Y. Hyun, MD
Diagnostic Radiology Physician · Long Beach, CA
James Y. Hyun, MD is a diagnostic radiology physician with a practice address in Long Beach, California, and NPI 1518941624, issued on Dec 1, 2005. Check the license (California A67698, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Y. Hyun
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A67698 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4241 Long Beach Blvd, Long Beach, CA 90807
- Phone
- (562) 912-2507
- Enumerated
- Dec 1, 2005
- Record last updated
- May 30, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (484) 918-2507
- Medicare enrollment
- Enrolled (PECOS I20040213000427); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 1994
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 4241 Long Beach Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Bell, MDDiagnostic Radiology Physician1073596573
- Charlton Byun, M.D.Diagnostic Radiology Physician1225340961
- Dong Kim, MDDiagnostic Radiology Physician1457633919
- Darissa Kon, MDDiagnostic Radiology Physician1154304640
- Cynthia Lloyd, MDDiagnostic Radiology Physician1891778379
- Kourosh Nourisamie, MDDiagnostic Radiology Physician1124000757
Verify James Y. Hyun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A67698Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2 hospitals and group practices
- Eagle Butte Indian Health Service HospitalEagle Butte, SD · Critical Access Hospitals
- Pomona Valley Imaging Medical Group IncPomona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
James Y. Hyun among 4,500 diagnostic radiology physician records in California
James Y. Hyun, MD is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1994 · median 2004 among the 3,130 with a school on file
- Record last updated2013 · 60% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Long Beach → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Timothy Bell, MDLong Beach, CA 908071073596573
- Charlton Byun, M.D.Long Beach, CA 908071225340961
- Dong Kim, MDLong Beach, CA 908071457633919
- Darissa Kon, MDLong Beach, CA 908071154304640
- Cynthia Lloyd, MDLong Beach, CA 908071891778379
- Kourosh Nourisamie, MDLong Beach, CA 908071124000757
- Gabriel Ramirez, MDLong Beach, CA 908071336125020
- Bach Vu, MDLong Beach, CA 908071790769891
Common questions
What is James Y. Hyun, MD's NPI number?
James Y. Hyun, MD's National Provider Identifier (NPI) is 1518941624, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Y. Hyun, MD located?
The NPPES record lists a practice address at 4241 Long Beach Blvd, Long Beach, CA, 90807. Phone: (562) 912-2507. Providers update this record themselves, so call before visiting.
How can I verify James Y. Hyun, MD's license?
NPPES lists California license number A67698, 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.