King Swee Leong, MD
Internal Medicine Physician · Chicago, IL
King Swee Leong, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1356521314, issued on Nov 7, 2007. Check the license (Illinois 036121705, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- King Swee Leong
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036121705 IL
125-050605 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2800 N Sheridan RD Ste 309, Chicago, IL 60657
- Phone
- (773) 248-6913
- Enumerated
- Nov 7, 2007
- Record last updated
- Oct 25, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 036121705 IL
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2800 N Sheridan RD Ste 309
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify King Swee Leong 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 036121705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
King Swee Leong among 7,238 internal medicine physician records in Illinois
King Swee Leong, MD 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 not. Its NPI, issued in 2007, is newer than 39% of them.
- NPI issued2007 · 39% of these records are older, 55% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2011 · 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).
2,867 internal medicine physician records list a practice address in Chicago
They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bruce Blacker, M.D.Chicago, IL 606571982603924
- Brian Boholst, M.D.Chicago, IL 606571235181959
- Edgar Borda, MDChicago, IL 606571891782447
- Harold EulienChicago, IL 606571700877222
- Lisa Greising, M.D.Chicago, IL 606571578523155
- Michael Grendon, M.D.Chicago, IL 606571922007962
- Catherine Kallal, MDChicago, IL 606571407801665
- Alam Khan, M.D.Chicago, IL 606571316946288
Common questions
What is King Swee Leong, MD's NPI number?
King Swee Leong, MD's National Provider Identifier (NPI) is 1356521314, issued on Nov 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is King Swee Leong, MD located?
The NPPES record lists a practice address at 2800 N Sheridan RD Ste 309, Chicago, IL, 60657. Phone: (773) 248-6913. Providers update this record themselves, so call before visiting.
How can I verify King Swee Leong, MD's license?
NPPES lists Illinois license number 036121705, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.