Lai-Sung Leung, MD
NPI 1316958440 · Ophthalmology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lai-Sung Leung, MD is a Ophthalmology Physician provider in San Francisco, CA (NPI 1316958440).
Provider details
- NPI number
- 1316958440
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- C35631 (CA)
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
19 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
277 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) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 78 | $158 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 51 | $153 |
| Imaging of Optic Nerve92133 | 44 | $44 |
| Exam of Visual Field With Extended Testing92083 | 40 | $82 |
| Imaging of Retina92134 | 21 | $50 |
| Photography of the Retina92250 | 16 | $44 |
| New Patient Complete Exam of Visual System |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 366 | 116 |
| Azelastine Hcl | 176 | 93 |
| Timolol Maleate | 69 | 19 |
| Prednisolone Acetate | 61 | 45 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 57 | 46 |
| Erythromycin Basebrand: Erythromycin | 48 | 32 |
| Brimonidine Tartrate | 47 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$129 across 1 record (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
- 2006-08-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Lai-Sung Leung's NPI number?
- Lai-Sung Leung's National Provider Identifier (NPI) is 1316958440, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lai-Sung Leung's specialty?
- Lai-Sung Leung is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Lai-Sung Leung located?
- Lai-Sung Leung's practice location on file with NPPES is 929 Clay St Suite 503, San Francisco, CA 94108-1500.
- What is Lai-Sung Leung's phone number?
- The practice phone number listed in the NPPES registry for Lai-Sung Leung is (415) 986-3215.
- Does Lai-Sung Leung accept Medicare?
- Lai-Sung Leung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lai-Sung Leung's NPI active?
- Yes — Lai-Sung Leung's NPI (1316958440) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.