Dominic K. Leung, MD
Internal Medicine Physician · Chicago, IL
Dominic K. Leung, MD is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1144230335, issued on Aug 9, 2006. Check the license (Illinois 036-103086, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Dominic K. Leung
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-103086 IL
Self-reported in NPPES; status is on the state search - Practice location
- 332 S Michigan Ave Ste 900, Chicago, IL 60604
- Phone
- (855) 229-2191
- Enumerated
- Aug 9, 2006
- Record last updated
- May 6, 2025
- Medicaid ID
- 036103086 IL
- Medicare enrollment
- Enrolled (PECOS I20110104001235); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1994
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 332 S Michigan Ave Ste 900
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Dominic K. Leung 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 036-103086Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% more Medicare Part D claims than the average internal medicine physician in 2024
5,173 Medicare Part D claims for 546 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 39 claims were for opioids.
Most prescribed
- Atorvastatin Calcium528 claims
- Levothyroxine Sodium270 claims
- Lisinopril223 claims
- Omeprazole190 claims
- Amlodipine Besylate186 claims
- Metformin Hcl161 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.
Bills Medicare through one group practice
- Clear Practice PLLCChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dominic K. Leung among 7,238 internal medicine physician records in Illinois
Dominic K. Leung, 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. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1994 · median 2003 among the 3,580 with a school on file
- Record last updated2025 · 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.
All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Steven Deangeles, MDChicago, IL 606041467438630
- Ami Desai, M.D.Chicago, IL 606041710097795
- Greg Ewert, M.D.Chicago, IL 606041376591974
- Louis Hiotis, M.D.Chicago, IL 606041710980339
- Elaine Leboff-Ries, M.D.Chicago, IL 606041013965771
Common questions
What is Dominic K. Leung, MD's NPI number?
Dominic K. Leung, MD's National Provider Identifier (NPI) is 1144230335, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dominic K. Leung, MD located?
The NPPES record lists a practice address at 332 S Michigan Ave Ste 900, Chicago, IL, 60604. Phone: (855) 229-2191. Providers update this record themselves, so call before visiting.
How can I verify Dominic K. Leung, MD's license?
NPPES lists Illinois license number 036-103086, 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 Dominic K. Leung, MD prescribe under Medicare Part D?
In 2024, Dominic K. Leung, MD had 5,173 Medicare Part D claims for 546 beneficiaries; 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.