NPPES file of Aug 9, 2026

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.

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

NPPES recordNPPES file of Aug 9, 2026
1144230335
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
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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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.

  1. Myranda AbelBehavior Technician1992650915
  2. Imanuel AceraBehavior Technician1811887466
  3. Bahirat AdejareOther Technician1780460378
  4. Sofia AguinagaProfessional Counselor1043006380
  5. Genevieve AllwayBehavior Technician1194619395
  6. Tejpavan AnanthaBehavior Technician1386560241

Verify Dominic K. Leung 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 036-103086
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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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.

  1. Dominic Leung5,173
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium528 claims
  2. Levothyroxine Sodium270 claims
  3. Lisinopril223 claims
  4. Omeprazole190 claims
  5. Amlodipine Besylate186 claims
  6. 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

  1. 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Patricia Bush, MDChicago, IL 606041649482464
  2. Amy Chen, MDChicago, IL 606041154663532
  3. Angelo Costas, M.D.Chicago, IL 606041104874791
  4. Steven Deangeles, MDChicago, IL 606041467438630
  5. Ami Desai, M.D.Chicago, IL 606041710097795
  6. Greg Ewert, M.D.Chicago, IL 606041376591974
  7. Louis Hiotis, M.D.Chicago, IL 606041710980339
  8. 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.