Egen Ong, M.D.
Family Medicine Physician · Chicago, IL
Egen Ong, M.D. is a family medicine physician with a practice address in Chicago, Illinois, and NPI 1538334727, issued on Apr 28, 2008. Check the license (Illinois 036047126, 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
- Egen Ong
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036047126 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5140 W Chicago Ave, Chicago, IL 60651
- Phone
- (773) 287-0751
- Enumerated
- Apr 28, 2008
- Record last updated
- Apr 28, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 5140 W Chicago Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tito Yao, MDGeneral Practice Physician1043220742
Verify Egen Ong 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 036047126Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Egen Ong among 6,215 family medicine physician records in Illinois
Egen Ong, M.D. is one of 6,215 family medicine 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 not. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileNo · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2008 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,593 family medicine physician records list a practice address in Chicago
They are 1,593 of the 63,379 NPPES records with a practice address in Chicago, and 6,215 family medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 6,215 in Illinois → Every provider in Chicago → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alfonso Bello, M.D.Chicago, IL 606511538171574
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- Michael Earley, M. D.Chicago, IL 606511922107952
- Paul Leo, MDChicago, IL 606511396205993
- Acezr Leynes, M.D.Chicago, IL 606511689672537
- Philip Maskall, M.D.Chicago, IL 606511255398715
- Hannah Polus, MDChicago, IL 606511376072009
- Nimmi RajagopalChicago, IL 606511063524676
Common questions
What is Egen Ong, M.D.'s NPI number?
Egen Ong, M.D.'s National Provider Identifier (NPI) is 1538334727, issued on Apr 28, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Egen Ong, M.D. located?
The NPPES record lists a practice address at 5140 W Chicago Ave, Chicago, IL, 60651. Phone: (773) 287-0751. Providers update this record themselves, so call before visiting.
How can I verify Egen Ong, M.D.'s license?
NPPES lists Illinois license number 036047126, 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.