JI LIU, M.D.
Glaucoma Specialist (Ophthalmology) Physician in NEW HAVEN, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
JI LIU, M.D. reported a CMS MIPS final score of 73.5637/100 — below the 83.1 national average — and filed 3,573 Medicare Part D claims in 2023.
- 73.5637/100
- MIPS score · -10 vs avg
- 4K
- Part D claims, 2023
- 58%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.
JI LIU, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure
74 11th percentile higher than 11% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
JI LIU, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
JI LIU, M.D. at a glance
Below national averagePrimary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Connecticut
How Glaucoma Specialist (Ophthalmology) Physician compares to other specialties among Connecticut providers
Glaucoma Specialist (Ophthalmology) Physician share within Connecticut
Glaucoma Specialist (Ophthalmology) Physician is one of the more visible NUCC categories in Connecticut
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Medicare quality performance — MIPS
JI LIU, M.D.'s 2023 MIPS final score plotted against the Glaucoma Specialist (Ophthalmology) Physician national average
- MIPS Final Score
- 73.5637/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Glaucoma Specialist (Ophthalmology) Physician) — 73.5637/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Cost dim CMS Cost category
- Specialty volume Glaucoma Specialist (Ophthalmology) Physician US NPIs
73.5637/100 MIPS final score — 9.5 pts below the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Glaucoma Specialist (Ophthalmology) Physician. Quality dim: 75.8435. Cost dim: 51.4318.
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
JI LIU, M.D. is a Glaucoma Specialist (Ophthalmology) Physician provider practicing in NEW HAVEN, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1114157104. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.
JI LIU, M.D. appears in the CMS NPPES registry as a Glaucoma Specialist (Ophthalmology) Physician provider holding M.D. credentials at 40 TEMPLE ST, NEW HAVEN, CT, 06510, with a listed phone of (203) 785-3360. NPI 1114157104 was issued on 07/23/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LIU most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 3,573 prescription claims written by this provider, covering 644 Medicare beneficiaries and totaling roughly $834K in drug spend, split 42% brand-name and 58% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 73.5637/100 for the 2023 performance year (Quality 75.8435, Cost 51.4318), compared with the national average of 83.1.
Glaucoma Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 354 enrolled providers across 42 states and an average of 2,962 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1114157104 |
|---|---|
| Specialty | Glaucoma Specialist (Ophthalmology) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/23/2009 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm JI LIU, M.D.'s current license status, disciplinary history, and board certifications with the Connecticut Department of Public Health in Connecticut before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Group practice
Hospital and facility affiliations
Facilities where JI LIU, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) — CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for JI LIU, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$145
Largest payer
ABBVIE INC.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Above average
42% brand-name claims vs 58% generic, on 3,573 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 7,211
- Total Day Supply
- 210,531
- Brand vs Generic
- 42% brand / 58% generic
- Brand Drug Cost
- $699K
- Generic Drug Cost
- $135K
Patient Demographics
- Average Patient Age
- 76.4 years
- Avg HCC Risk Score
- 1.43
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 51, 65-74: 210, 75-84: 253, 85+: 130
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Latanoprost | 593 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 515 |
| Timolol Maleate | 309 |
| Brimonidine Tartrate | 228 |
| Prednisolone Acetate | 169 |
| Rocklatan Netarsudil Mesylat/Latanoprost | 163 |
| Alphagan P Brimonidine Tartrate | 137 |
| Dorzolamide Hcl | 134 |
| Rhopressa Netarsudil Mesylate | 128 |
| Combigan Brimonidine Tartrate/Timolol | 111 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Glaucoma Specialist (Ophthalmology) Physician Overview
How JI LIU, M.D. fits within the Glaucoma Specialist (Ophthalmology) Physician landscape nationally.
JI LIU, M.D.'s 3,573 claims are above the specialty average of 2,962.
Nearby Glaucoma Specialist (Ophthalmology) Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as LIU.
Compare Glaucoma Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
What is JI LIU, M.D.'s specialty? ▼
How much does JI LIU, M.D. prescribe under Medicare Part D? ▼
What is JI LIU, M.D.'s Medicare quality score? ▼
Where is JI LIU, M.D. located? ▼
What is JI LIU, M.D.'s NPI number? ▼
Does JI LIU, M.D. prescribe more brand-name or generic drugs? ▼
How many Glaucoma Specialist (Ophthalmology) Physician providers are there in the US? ▼
What drugs does JI LIU, M.D. prescribe most often? ▼
Does JI LIU, M.D. accept Medicare? ▼
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Data Sources
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology