Physician Profile
Based in Durham, NC, Katy Liu, M.D., PhD is listed in the NPI registry under ophthalmology. Medicare claims data shows Katy provided 396 services to 308 patients. The services billed most often include established patient problem focused 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.
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.
2301 ERWIN RD
Durham, NC 27705
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
396 services · 308 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
15 | |
| Established patient problem focused exam of visual system | Treatment | 92012 |
148 | As often as other peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
72 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
56 | As often as other peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
25 | |
| Exam of the internal drainage system of eye | Treatment | 92020 |
18 | |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
34 | |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
28 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Katy Liu, M.D. is an eye doctor in Durham, NC. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Katy Liu, M.D. is listed at 2301 Erwin Rd, Durham, NC 27705. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (919) 684-8111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Katy Liu, M.D.'s National Provider Identifier is 1801216221. 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
Katy Liu, M.D. attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
Katy Liu, M.D. has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Katy Liu, M.D. performs imaging including ultrasound scan of cornea to determine thickness; provides treatments such as established patient problem focused 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 Katy Liu, M.D.. 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.