Dominic Leung, MD
NPI 1144230335 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dominic Leung, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1144230335).
Provider details
- NPI number
- 1144230335
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036-103086 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,159 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 245 | $131 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 227 | $9 |
| Blood Test, Clotting Time85610 | 200 | $4 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 194 | $12 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 54 | $92 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 48 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 84 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 528 | 191 |
| Levothyroxine Sodium | 270 | 86 |
| Lisinopril | 223 | 80 |
| Omeprazole | 190 | 63 |
| Amlodipine Besylate | 186 | 62 |
| Metformin Hcl | 161 | 57 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-09
- Last updated
- 2025-05-06
- Certified
- 2025-05-06
Frequently asked questions
- What is Dominic Leung's NPI number?
- Dominic Leung's National Provider Identifier (NPI) is 1144230335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dominic Leung's specialty?
- Dominic Leung is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dominic Leung located?
- Dominic Leung's practice location on file with NPPES is 332 S Michigan Ave Ste 900, Chicago, IL 60604-4393.
- What is Dominic Leung's phone number?
- The practice phone number listed in the NPPES registry for Dominic Leung is (855) 229-2191.
- Does Dominic Leung accept Medicare?
- Dominic Leung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dominic Leung's NPI active?
- Yes — Dominic Leung's NPI (1144230335) is active in the NPPES registry as of the last update on 2025-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.