Harold A. Yoon, MD
Radiation Oncology Physician · Decatur, IL
Harold A. Yoon, MD is a radiation oncology physician with a practice address in Decatur, Illinois, and NPI 1558566984, issued on Jun 16, 2007. Check the license (Illinois 036119960, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Harold A. Yoon
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 036119960 IL
Self-reported in NPPES; status is on the state search - Practice location
- 210 W Mckinley Ave Ste 1, Decatur, IL 62526
- Phone
- (217) 877-9442
- Enumerated
- Jun 16, 2007
- Record last updated
- Apr 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (217) 233-1670
- Medicare enrollment
- Enrolled (PECOS I20080612000335); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2003
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 277 in Illinois → Look up another NPI →
Also registered at 210 W Mckinley Ave Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Radwan Diab, M.D.Hematology (Internal Medicine) Physician1699398297
- Benjamin Esparaz, M.D.Hematology & Oncology Physician1275502940
- Sarah Mackey, FNP-CNurse Practitioner1275102113
- Shannon Nail, LCPCProfessional Counselor1568059764
- Evelena Ontiveros, MD PHDHematology & Oncology Physician1689886962
- Thomas Tarter, M.D.Surgical Oncology Physician1114913225
Verify Harold A. Yoon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036119960Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% more Medicare Part D claims than the average radiation oncology physician in 2024
215 Medicare Part D claims for 97 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Tamsulosin Hcl96 claims
- Sucralfate15 claims
- Lorazepam11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,269.56
156 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 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
- Cancer Care Specialists OF Central Illinois SCDecatur, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harold A. Yoon among 277 radiation oncology physician records in Illinois
Harold A. Yoon, MD is one of 277 radiation oncology physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 44% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2003 · median 2004 among the 184 with a school on file
- Record last updated2019 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Illinois
There are 277 radiation oncology physician records in Illinois.
All 277 in Illinois → Every provider in Decatur → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Mary Anne Depaz, MDDecatur, IL 625261700846664
- Edward Elliott, MDDecatur, IL 625261790748119
- Renata Moore, M.D.Decatur, IL 625211851483572
- Casey Duncan, MDEffingham, IL 624011487720942
- Samuel Au, M.D.Springfield, IL 627011578565420
- Brian Baumann, MDSpringfield, IL 627011841559945
- Benjamin Fischer-Valuck, MDSpringfield, IL 627021023351673
- Robert Johnson, MDQuincy, IL 623011053308825
Common questions
What is Harold A. Yoon, MD's NPI number?
Harold A. Yoon, MD's National Provider Identifier (NPI) is 1558566984, issued on Jun 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Harold A. Yoon, MD located?
The NPPES record lists a practice address at 210 W Mckinley Ave Ste 1, Decatur, IL, 62526. Phone: (217) 877-9442. Providers update this record themselves, so call before visiting.
How can I verify Harold A. Yoon, MD's license?
NPPES lists Illinois license number 036119960, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Harold A. Yoon, MD prescribe under Medicare Part D?
In 2024, Harold A. Yoon, MD had 215 Medicare Part D claims for 97 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Harold A. Yoon, MD's MIPS final score?
The 2023 MIPS final score is 77.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.