Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Lai-Sung Eric Leung, MD

Individual provider Ophthalmology Physician · NPI 1316958440

Dr. Lai-Sung Eric Leung, MD practises Ophthalmology in San Francisco, California. Graduated from Johns Hopkins University School of Medicine in 1970, 56 years ago. Practices with L Eric Leung M D a Professional Corporation, a 2-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
56
Trained at
Johns Hopkins University School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

929 Clay St Ste 503
San Francisco, CA 94108-1500 Not confirmed with CMS for 19 years — call before visiting
Phone: (415) 986-3215
Fax: (415) 986-1118
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence C35631 (CA)

Record details

NPI number1316958440
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 11, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1970 (56 years in practice)
Group practice L Eric Leung M D A Professional Corporation — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Cataract surgery 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients127
Services billed 305 a service is one billed item, such as a visit, a test or a procedure
Average patient age80

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Chinese Hospital Hospital · San Francisco, CA · listed as Chinese Hospital Association

Colleagues at L Eric Leung M D a Professional Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in San Francisco