Mary Cheung, M.D.
NPI 1114243219 · Internal Medicine Physician · Bronx, NY
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Cheung, M.D. is a Internal Medicine Physician provider in Bronx, NY (NPI 1114243219).
Provider details
- NPI number
- 1114243219
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 260017-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
775 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 102 | $87 |
| Study of Esophagus to Assess Movement91010 | 83 | $70 |
| Study of Esophagus to Assess Movement With Stimulation Or Tube91013 | 80 | $10 |
| Monitoring and Recording of Esophageal Function Through Nasal Tube With Electrode91037 | 80 | $53 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 75 | $133 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 83 | 37 |
| Famotidine | 48 | 29 |
| Linaclotidebrand: Linzess | 34 | — |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 27 | 27 |
| Pantoprazole Sodium | 24 | 14 |
| Sucralfate | 14 | — |
| Lubiprostone | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$408 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-14
- Last updated
- 2011-01-29
Frequently asked questions
- What is Mary Cheung's NPI number?
- Mary Cheung's National Provider Identifier (NPI) is 1114243219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Cheung's specialty?
- Mary Cheung is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Cheung located?
- Mary Cheung's practice location on file with NPPES is 111 E 210th St, Bronx, NY 10467-2401.
- What is Mary Cheung's phone number?
- The practice phone number listed in the NPPES registry for Mary Cheung is (718) 920-5321.
- Does Mary Cheung accept Medicare?
- Mary Cheung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Cheung's NPI active?
- Yes — Mary Cheung's NPI (1114243219) is active in the NPPES registry as of the last update on 2011-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.