Physician Profile
Catherine Liu, M.D. practices ophthalmology in Boston, MA. According to Medicare claims data, Catherine cared for 742 Medicare patients across 852 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 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.
243 CHARLES ST
Boston, MA 02114
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
852 services · 742 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
37 | Less often than most peers in Ophthalmology |
| Closure of tear duct opening using plug | Procedure | 68761 |
30 | As often as other peers in Ophthalmology |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
20 | As often as other peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
52 | Less often than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
42 | Less often than most peers in Ophthalmology |
| Ct scan of cornea | Treatment | 92025 |
38 | As often as other peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
32 | Less often than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
30 | Less often than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
25 | Less often than most peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
21 | Less often than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Catherine Liu is an eye doctor in Boston, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Catherine Liu is listed at 243 Charles St, Boston, MA 02114. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (617) 573-4443. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Catherine Liu's National Provider Identifier is 1619542362. 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
Catherine Liu attended Other, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
Catherine Liu has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Catherine Liu performs procedures including removal of cataract with insertion of prosthetic lens, closure of tear duct opening using plug and complex removal of cataract with insertion of prosthetic lens; provides treatments such as measurement of corneal curvature and depth of eye and imaging of retina, 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 Catherine Liu. 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.