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Edit this profileBased in Southampton, NY, Nga Yan Siu, DO is listed in the NPI registry under ophthalmology. Nga Yan is also listed as specializing in ophthalmology — glaucoma. Medicare claims data shows Nga Yan provided 3,610 services to 3,054 patients. The services billed most often include established patient problem focused exam of visual system, imaging of optic nerve, and exam of the internal drainage system of eye. NPI 1902284169 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
67 HAMPTON RD
Southampton, NY 11968
1 N Washington Ave
Bergenfield, NJ 07621
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.
Eye injury and cancer
Inflammation, neurologic, and orbit
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
Retina and vitreous
Eye injuries
Retina & vitreous
Cataract and lens
Cornea and refractive
Emergency and minor
Examination and imaging
Eyelid, tear duct, and muscle
Glaucoma
Retina
Most searched procedures
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
3,610 services · 3,054 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Closure of tear duct opening using plug | Procedure | 68761 |
48 | As often as other peers in Ophthalmology |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
26 | Less often than most peers in Ophthalmology |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
19 | As often as other peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
224 | More than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
679 | More than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
518 | More than most peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
508 | More than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
496 | More than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
473 | More often than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
225 | More than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Siu is an eye doctor in Southampton, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Dr. Siu is listed at 67 Hampton Rd, Southampton, NY 11968. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (631) 444-4796. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Siu's National Provider Identifier is 1902284169. 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
Dr. Siu attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
Dr. Siu has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Siu performs procedures including closure of tear duct opening using plug, removal of cataract with insertion of prosthetic lens and complex removal of cataract with insertion of prosthetic lens; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as established patient problem focused exam of visual system and imaging of optic nerve. 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 Dr. Siu. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.
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