Physician Profile
Lucy Y. Zhang, M.D. is a healthcare provider in Greenbrae, CA specializing in ophthalmology — cornea & external disease. Lucy trained at Washington University School of Medicine, graduating in 2012. Medicare claims data shows Lucy provided 3,694 services to 3,214 patients. The services billed most often include imaging of retina, established patient complete exam of visual system, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
900 S ELISEO DR STE 102
Greenbrae, CA 94904
1720 El Camino Real Ste 225
Burlingame, CA 94010
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
3,694 services · 3,214 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Closure of tear duct opening using plug | Procedure | 68761 |
90 | More often than most peers in Ophthalmology — Cornea &… |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
90 | As often as other peers in Ophthalmology — Cornea &… |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
68 | More often than most peers in Ophthalmology — Cornea &… |
| Removal of eyelashes using forceps | Procedure | 67820 |
17 | Less often than most peers in Ophthalmology — Cornea &… |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
85 | More often than most peers in Ophthalmology — Cornea &… |
| Imaging of retina | Treatment | 92134 |
824 | More than most peers in Ophthalmology — Cornea &… |
| Established patient complete exam of visual system | Treatment | 92014 |
774 | More than most peers in Ophthalmology — Cornea &… |
| Imaging of optic nerve | Treatment | 92133 |
251 | More than most peers in Ophthalmology — Cornea &… |
| Exam of visual field with extended testing | Treatment | 92083 |
232 | More than most peers in Ophthalmology — Cornea &… |
| Photography of the retina | Treatment | 92250 |
156 | More often than most peers in Ophthalmology — Cornea &… |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Lucy Y. Zhang is an eye doctor in Greenbrae, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology — Cornea & External Disease”.
NPI registry
Lucy Y. Zhang is listed at 900 S Eliseo Dr Ste 102, Greenbrae, CA 94904. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (415) 461-8200. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Lucy Y. Zhang's National Provider Identifier is 1326304809. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Lucy Y. Zhang attended Washington University School of Medicine, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
Lucy Y. Zhang has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Lucy Y. Zhang performs procedures including closure of tear duct opening using plug, removal of cataract with insertion of prosthetic lens and removal of recurring cataract in lens capsule using a laser; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as imaging of retina and established patient complete exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Lucy Y. Zhang. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.