Peggy Leung
NPI 1548688518 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peggy Leung is a Internal Medicine Physician provider in New York, NY (NPI 1548688518).
Provider details
- NPI number
- 1548688518
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 289404 (NY)
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
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
11 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 11 | $71 |
Typical Medicare-allowed amounts for these services range $71–$71 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 91 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 77 | 13 |
| Famotidine | 76 | 15 |
| Metformin Hcl | 70 | 17 |
| Fluticasone Propionate | 66 | 15 |
| Amlodipine Besylate | 60 | 21 |
| Losartan Potassium |
Practice location
Mailing address
Additional practice locations (1)
- 36-11 21st StreetLong Island City, NY 11106-4505Phone: (718) 482-7772Fax: (718) 482-9648
Registry dates
- Enumerated
- 2014-04-07
- Last updated
- 2018-03-17
Frequently asked questions
- What is Peggy Leung's NPI number?
- Peggy Leung's National Provider Identifier (NPI) is 1548688518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peggy Leung's specialty?
- Peggy Leung is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peggy Leung located?
- Peggy Leung's practice location on file with NPPES is 505 E 70th St, New York, NY 10021-4872.
- What is Peggy Leung's phone number?
- The practice phone number listed in the NPPES registry for Peggy Leung is (212) 746-2942.
- Does Peggy Leung accept Medicare?
- Peggy Leung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peggy Leung's NPI active?
- Yes — Peggy Leung's NPI (1548688518) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.