Ying Yan Leung, M.D
NPI 1275612632 · General Practice Physician · Hacienda Heights, CA
Ying Yan Leung, M.D is a General Practice Physician provider in Hacienda Heights, CA (NPI 1275612632).
Provider details
- NPI number
- 1275612632
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- G43055 (CA)
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
527 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 | 186 | $98 |
| Application of Ultrasound, Each 15 Minutes97035 | 79 | $15 |
| Electrical Stimulation (unattended), to One Or More Areas for Indication(s) Other Than Wound Care, As Part of a Therapy Plan of CareG0283 | 79 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 62 | $194 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 61 | $138 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 94 | 37 |
| Losartan Potassium | 68 | 29 |
| Metformin Hcl | 59 | 16 |
| Amlodipine Besylate | 39 | 18 |
| Omeprazole | 27 | 12 |
| Azithromycin | 25 | 18 |
| Levothyroxine Sodium | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-04
- Last updated
- 2023-10-18
- Certified
- 2023-10-18
Frequently asked questions
- What is Ying Yan Leung's NPI number?
- Ying Yan Leung's National Provider Identifier (NPI) is 1275612632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ying Yan Leung's specialty?
- Ying Yan Leung is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Ying Yan Leung located?
- Ying Yan Leung's practice location on file with NPPES is 3038 S Hacienda Blvd, Hacienda Heights, CA 91745-5313.
- What is Ying Yan Leung's phone number?
- The practice phone number listed in the NPPES registry for Ying Yan Leung is (626) 961-5479.
- Is Ying Yan Leung's NPI active?
- Yes — Ying Yan Leung's NPI (1275612632) is active in the NPPES registry as of the last update on 2023-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.