Doctor profile · Federal record

Dr. Dominic Leung, MD

Internal Medicine Physician (CMS: Internal Medicine) · Chicago, IL

  • NPI 1144230335
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
332 S Michigan Ave Ste 900
Chicago, IL 606044393
(855) 229-2191

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
May 6, 2025
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Illinois #036-103086
Medicaid
IL #036103086

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144230335. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,608
Distinct HCPCS
10
Medicare allowed
$146,261
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 544 283 $132
36415 Insertion of needle into vein for collection of blood sample 475 271 $8
85610 Blood test, clotting time 461 126 $4
93793 Anticoagulant management of patient taking warfarin 450 125 $12
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 167 167 $133
99213 Established patient office or other outpatient visit, 20-29 minutes 118 98 $93
99215 Established patient office or other outpatient visit, 40-54 minutes 99 81 $183
G0008 Administration of influenza virus vaccine 96 93 $32
90662 Influenza vaccine split virus, preservative free 90 87 $72
96372 Injection of drug or substance under skin or into muscle 51 15 $14

In context: peer comparison

Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 16× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,578
Patients
1,036
Total drug cost
$52,091
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 708 204 $10,046
Levothyroxine Sodium Generic 395 98 $7,329
Lisinopril Generic 349 101 $2,581
Amlodipine Besylate Generic 254 75 $2,286
Omeprazole Generic 236 67 $4,284
Metformin Hcl Generic 232 69 $2,285
Pantoprazole Sodium Generic 201 60 $3,117
Metoprolol Succinate Generic 176 56 $3,638
Simvastatin Generic 170 46 $1,835
Tamsulosin Hcl Generic 165 54 $3,683

Frequently asked questions

Auto-generated from federal data
What is Dr. Dominic Leung's medical specialty?
Dr. Dominic Leung practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Dominic Leung practice?
Dr. Dominic Leung practices at 332 S Michigan Ave Ste 900, Chicago, IL 606044393. Office phone: 8552292191.
What is Dr. Dominic Leung's NPI?
Dr. Dominic Leung's National Provider Identifier (NPI) is 1144230335, issued by NPPES.
Does Dr. Dominic Leung accept Medicare assignment?
Yes. Dr. Dominic Leung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dominic Leung commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Blood test, clotting time (HCPCS 85610). Source: CMS Medicare Physician & Other Practitioners file.