NPPES file of Aug 9, 2026

Jong Chul Yoon, M.D.

Specialist · Frederick, MD

Jong Chul Yoon, M.D. is a specialist with a practice address in Frederick, Maryland, and NPI 1063432326, issued on Jul 20, 2006. Check the license (Maryland D0059947, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063432326
Name
Jong Chul Yoon
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
D0059947 MD
Self-reported in NPPES; status is on the state search
Practice location
82 Thomas Johnson CT, Frederick, MD 21702
Phone
(301) 698-2440
Enumerated
Jul 20, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080926000404); accepts Medicare assignment
Medical or professional school
University Of Kentucky College Of Medicine, 2003
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.
Download card Updates feed

Also registered at 82 Thomas Johnson CT

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

  1. Lori Alessi, M.S., CCC-AAudiologist1699930909
  2. Robert Jackson, M.D.Specialist1164442406

Verify Jong Chul Yoon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license D0059947
    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
Find the Maryland 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

64% fewer Medicare Part D claims than the average specialist in 2024

497 Medicare Part D claims for 226 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Jong Yoon497
  2. Specialty average1,380

Most prescribed

  1. Ipratropium Bromide102 claims
  2. Betamethasone Valerate59 claims
  3. Ofloxacin38 claims
  4. Azelastine Hcl37 claims
  5. Prednisone32 claims
  6. Ciprofloxacin-Dexamethasone27 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 MIPS final score for 2023 (Medicare payment program): 0 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $226.78

8 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jong Yoon$226.78
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Amber Hill Physical Therapy IncFrederick, MD
  2. Frederick Ent Group P.A.Frederick, MD
  3. Meritus Medical Center IncHagerstown, MD

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

Jong Chul Yoon among 938 specialist records in Maryland

Jong Chul Yoon, M.D. is one of 938 specialist records with a practice address in Maryland. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 17% of them.

  • NPI issued2006 · 17% of these records are older, 39% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileYes · 23% of these records are
  • Graduated2003 · median 1989 among the 220 with a school on file
  • Record last updated2007 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Maryland

There are 938 specialist records in Maryland.

The 8 specialist records with the nearest ZIP codes

  1. Mark Chilton, M.D.Frederick, MD 217021689644072
  2. Laura Copaken, MDFrederick, MD 217021043268642
  3. Prafull Dave, MD PAFrederick, MD 217021326008582
  4. Melissa Esposito, M.D.Frederick, MD 217021023003464
  5. Jeffrey Gilsdorf, M.D.Frederick, MD 217021477524486
  6. John Henry, M.D.Frederick, MD 217021013982784
  7. Robert Jackson, M.D.Frederick, MD 217021164442406
  8. Charles Kim, M.DFrederick, MD 217021295736338

Common questions

What is Jong Chul Yoon, M.D.'s NPI number?

Jong Chul Yoon, M.D.'s National Provider Identifier (NPI) is 1063432326, issued on Jul 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jong Chul Yoon, M.D. located?

The NPPES record lists a practice address at 82 Thomas Johnson CT, Frederick, MD, 21702. Phone: (301) 698-2440. Providers update this record themselves, so call before visiting.

How can I verify Jong Chul Yoon, M.D.'s license?

NPPES lists Maryland license number D0059947, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Jong Chul Yoon, M.D. prescribe under Medicare Part D?

In 2024, Jong Chul Yoon, M.D. had 497 Medicare Part D claims for 226 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

What is Jong Chul Yoon, M.D.'s MIPS final score?

The 2023 MIPS final score is 0 of 100. 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.