Physician Profile
Sophia T. Chen, M.D. practices ophthalmology in Oakland, CA. Sophia is a 1998 graduate of New York University School of Medicine. According to Medicare claims data, Sophia cared for 3,657 Medicare patients across 4,174 services. The services billed most often include established patient complete exam of visual system, imaging of optic nerve, and exam of visual field with extended testing.
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.
345 9TH ST SUITE 204
Oakland, CA 94607
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
4,174 services · 3,657 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
161 | More often than most peers in Ophthalmology |
| Laser repair to improve eye fluid flow | Procedure | 65855 |
152 | More than most peers in Ophthalmology |
| Incision to improve eye fluid flow | Procedure | 65820 |
47 | More often than most peers in Ophthalmology |
| Dilation of fluid outflow drainage within eye | Procedure | 66174 |
43 | More often than most peers in Ophthalmology |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
34 | More often than most peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
22 | Less often than most peers in Ophthalmology |
| Transplantation of fetal sac tissue to cornea | Procedure | 65780 |
13 | Too few peers to compare |
| Ultrasound scan to determine eye length and lens power | Imaging | 76519 |
215 | More than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
1,047 | More than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
709 | More than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Sophia T. Chen is an eye doctor in Oakland, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Sophia T. Chen is listed at 345 9Th St Suite 204, Oakland, CA 94607. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (510) 350-8741. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Sophia T. Chen's National Provider Identifier is 1033183934. 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
Sophia T. Chen attended New York University School of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
Sophia T. Chen has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Sophia T. Chen performs procedures including removal of cataract with insertion of prosthetic lens, laser repair to improve eye fluid flow and incision to improve eye fluid flow; reads or performs imaging such as ultrasound scan to determine eye length and lens power; provides treatments such as established patient complete exam of visual system and imaging of optic nerve, 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 Sophia T. Chen. 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.