Hyun Don Yun, MD
Hematology & Oncology Physician · Irvine, CA
Hyun Don Yun, MD is a hematology & oncology physician with a practice address in Irvine, California, and NPI 1508090473, issued on May 7, 2009. Check the license (California A172166, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hyun Don Yun
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A172166 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4950 Barranca Pkwy Ste 210, Irvine, CA 92604
- Phone
- (410) 599-2882
- Enumerated
- May 7, 2009
- Record last updated
- Jun 15, 2026
- Fax
- (410) 599-2882
- Medicare enrollment
- Enrolled (PECOS I20190701000078); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Verify Hyun Don Yun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A172166Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $1,198.69
8 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Trinity Medical CenterRock Island, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hyun Don Yun among 1,583 hematology & oncology physician records in California
Hyun Don Yun, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 66% of them.
- NPI issued2009 · 66% of these records are older, 30% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2005 · median 2003 among the 1,124 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Irvine → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Samer AlkassisIrvine, CA 926041124681515
- Zorawar Noor, M.D., M.H.S.Irvine, CA 926041376802843
- David Xu, MDIrvine, CA 926041568826519
- Bruce Hayton, M.D.Wildomar, CA 925951710030192
- Waheed Murad, M.D, MRCPTemecula, CA 925911205098498
- Rafi Ahmed, MDIrvine, CA 926181205093028
- Tiffanie Do, M.D.Irvine, CA 926181194251710
- Nader Kashani, MDIrvine, CA 926181285793893
Common questions
What is Hyun Don Yun, MD's NPI number?
Hyun Don Yun, MD's National Provider Identifier (NPI) is 1508090473, issued on May 7, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Hyun Don Yun, MD located?
The NPPES record lists a practice address at 4950 Barranca Pkwy Ste 210, Irvine, CA, 92604. Phone: (410) 599-2882. Providers update this record themselves, so call before visiting.
How can I verify Hyun Don Yun, MD's license?
NPPES lists California license number A172166, 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.