NPPES file of Aug 9, 2026

Young Sun Kim, M.D.

Internal Medicine Physician · Saint Charles, IL

Young Sun Kim, M.D. is an internal medicine physician with a practice address in Saint Charles, Illinois, and NPI 1194958587, issued on Sep 1, 2009. Check the license (Illinois 036105165, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1194958587
Name
Young Sun Kim
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
036105165 IL
Self-reported in NPPES; status is on the state search
Practice location
37W755 IL Route 38, Saint Charles, IL 60175
Phone
(630) 208-2098
Enumerated
Sep 1, 2009
Record last updated
Sep 7, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(630) 513-1473
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Young Sun Kim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036105165
    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 Illinois license search

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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

171 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Young Kim171
  2. Specialty average3,176

Most prescribed

  1. Creon17 claims
  2. Alendronate Sodium12 claims
  3. Amlodipine Besylate12 claims
  4. Ciclopirox12 claims
  5. Furosemide12 claims
  6. Levothyroxine Sodium12 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.

Young Sun Kim among 7,238 internal medicine physician records in Illinois

Young Sun Kim, M.D. is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 49% of them.

  • NPI issued2009 · 49% of these records are older, 49% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2009 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Internal Medicine Physician providers in Illinois

There are 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Zbigniew Ciechanowski, M.D.St Charles, IL 601741467452573
  2. Marissa Jama, DOSt Charles, IL 601741962146258
  3. Miroslaw Kuptel, MDSchiller Park, IL 601761457342321
  4. Scott McNaughton, M.D.St Charles, IL 601741073510335
  5. Laura Tagle, MDSt Charles, IL 601741053440008
  6. Catherine Thomas, M.D.St Charles, IL 601741295785756
  7. Vivian Vanroekel, M.D.St Charles, IL 601741487657524
  8. Lawrence Yoo, MDSt Charles, IL 601741912167669

Common questions

What is Young Sun Kim, M.D.'s NPI number?

Young Sun Kim, M.D.'s National Provider Identifier (NPI) is 1194958587, issued on Sep 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Young Sun Kim, M.D. located?

The NPPES record lists a practice address at 37W755 IL Route 38, Saint Charles, IL, 60175. Phone: (630) 208-2098. Providers update this record themselves, so call before visiting.

How can I verify Young Sun Kim, M.D.'s license?

NPPES lists Illinois license number 036105165, 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 Young Sun Kim, M.D. prescribe under Medicare Part D?

In 2024, Young Sun Kim, M.D. had 171 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.