John Sun, MD
Student in an Organized Health Care Education/Training Program · Chicago, IL
John Sun, MD is a student in an organized health care education/training program with a practice address in Chicago, Illinois, and NPI 1023865318, issued on May 3, 2024. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Sun
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 5841 S Maryland Ave # MC4028, Chicago, IL 60637
- Phone
- (773) 702-6842
- Enumerated
- May 3, 2024
- Record last updated
- May 3, 2024
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 6,526 in Illinois → Look up another NPI →
Also registered at 5841 S Maryland Ave # MC4028
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
24 Medicare Part D claims, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.
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.
John Sun among 6,526 student in an organized health care education/training program records in Illinois
John Sun, MD is one of 6,526 student in an organized health care education/training program records with a practice address in Illinois. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 44% of them.
- NPI issued2024 · 44% of these records are older, 40% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileNo · 3% of these records are
- Record last updated2024 · 22% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3,509 student in an organized health care education/training program records list a practice address in Chicago
They are 3,509 of the 63,379 NPPES records with a practice address in Chicago, and 6,526 student in an organized health care education/training program records in Illinois.
All 6,526 in Illinois → Every provider in Chicago → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Alex ChoyChicago, IL 606371154819738
- Elam CoalsonChicago, IL 606371285264259
- Adrian DiazChicago, IL 606371740714377
- Matthew Gold, MDChicago, IL 606371336601848
- Abhishek Goswami, MDChicago, IL 606371376021410
- Tripat Kaur, MDChicago, IL 606371225524200
- Izabela Kazana, DNP, APNChicago, IL 606371881129377
- U Kumar Jayant, MD, PHDChicago, IL 606371437676434
Common questions
What is John Sun, MD's NPI number?
John Sun, MD's National Provider Identifier (NPI) is 1023865318, issued on May 3, 2024. An NPI identifies a provider in billing; it is not a license.
Where is John Sun, MD located?
The NPPES record lists a practice address at 5841 S Maryland Ave # MC4028, Chicago, IL, 60637. Phone: (773) 702-6842. Providers update this record themselves, so call before visiting.
How can I verify John Sun, MD's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does John Sun, MD prescribe under Medicare Part D?
In 2024, John Sun, MD had 24 Medicare Part D claims; the average among student in an organized health care education/training program prescribers was 185. 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.