2026 NPPES data Glaucoma Specialist (Ophthalmology) Physician NPI 1093101974 MD
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JAMES LIU, MD

Glaucoma Specialist (Ophthalmology) Physician in SAINT LOUIS, Missouri. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
5K
Medicare Part D claims · 759 beneficiaries · Glaucoma Specialist (Ophthalmology) Physician avg: 3K
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$11.5K
28 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JAMES LIU, MD is a Glaucoma Specialist (Ophthalmology) Physician ([object Object]) practicing in SAINT LOUIS, Missouri with a Medicare Part D prescribing footprint of 5K claims across 759 beneficiaries — 34% brand-name prescribing . Industry payments of $11.5K across 28 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JAMES LIU, MD filed 5,020 Medicare Part D claims in 2023 across SAINT LOUIS, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JAMES LIU, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JAMES LIU, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 04/08/2015

NPI 1093101974

Primary specialty

Glaucoma Specialist (Ophthalmology) Physician

Rare

354 US NPIs in this specialty

Medicare Part D claims

5,020 69% vs specialty avg

2023 prescription claims

Specialty avg: 2,962

Specialty distribution in Missouri

How Glaucoma Specialist (Ophthalmology) Physician compares to other specialties among Missouri providers

Missouri providers

Glaucoma Specialist (Ophthalmology) Physician share within Missouri

1. Glaucoma Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Glaucoma Specialist (Ophthalmology) Physician share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Glaucoma Specialist (Ophthalmology) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Glaucoma Specialist (Ophthalmology) Physician ABMS/AOA estimate

Est. board-certified rate (Glaucoma Specialist (Ophthalmology) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Glaucoma Specialist (Ophthalmology) Physician) — ABMS / AOA estimate

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).

JAMES LIU, MD is a Glaucoma Specialist (Ophthalmology) Physician provider practicing in SAINT LOUIS, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1093101974. 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.

JAMES LIU, MD appears in the CMS NPPES registry as a Glaucoma Specialist (Ophthalmology) Physician provider holding MD credentials at 4901 FOREST PARK AVE, SAINT LOUIS, MO, 63108, with a listed phone of (314) 362-3937. NPI 1093101974 was issued on 04/08/2015. 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 5,020 prescription claims written by this provider, covering 759 Medicare beneficiaries and totaling roughly $573K in drug spend, split 34% brand-name and 66% 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.

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

4901 FOREST PARK AVE
SAINT LOUIS, MO 63108

Provider Details

NPI 1093101974
Specialty Glaucoma Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 04/08/2015

Hospital and facility affiliations

Facilities where JAMES LIU, MD 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.

WASHINGTON UNIVERSITY
SAINT LOUIS, MO

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 JAMES LIU, MD. Source: openpaymentsdata.cms.gov.

Total received

$11.5K

Largest payer

Surgical Specialties Corporation (us), Inc. (dba Corza Medical)

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

JAMES LIU, MD — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 5,020 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.

5,020
Total Claims
$573K
Total Drug Cost
759
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,284
Total Day Supply
265,025
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$417K
Generic Drug Cost
$156K

Patient Demographics

Average Patient Age
75.4 years
Avg HCC Risk Score
1.50
Gender Split
56% female / 44% male
Age Distribution
<65: 63, 65-74: 293, 75-84: 271, 85+: 132

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
1,095
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
845
Brimonidine Tartrate
524
Prednisolone Acetate
427
Dorzolamide Hcl
272
Moxifloxacin
Moxifloxacin Hcl
272
Timolol Maleate
236
Lumigan
Bimatoprost
228
Alphagan P
Brimonidine Tartrate
144
Rocklatan
Netarsudil Mesylat/Latanoprost
90

* 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 JAMES LIU, MD fits within the Glaucoma Specialist (Ophthalmology) Physician landscape nationally.

354
Glaucoma Specialist (Ophthalmology) Physician Providers in US
42
States with Glaucoma Specialist (Ophthalmology) Physician
2,962
Avg Claims per Provider

JAMES LIU, MD's 5,020 claims are above the specialty average of 2,962.

Nearby Glaucoma Specialist (Ophthalmology) Physician Providers in Missouri

Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as LIU.

Compare Glaucoma Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAMES LIU, MD's specialty?
JAMES LIU, MD specializes in Glaucoma Specialist (Ophthalmology) Physician and practices in SAINT LOUIS, Missouri. Credentials: MD.
How much does JAMES LIU, MD prescribe under Medicare Part D?
In 2023, JAMES LIU, MD wrote 5,020 Medicare Part D claims totaling $573K in drug costs for 759 beneficiaries.
Where is JAMES LIU, MD located?
JAMES LIU, MD is located at 4901 FOREST PARK AVE, SAINT LOUIS, MO, 63108. Phone: (314) 362-3937.
What is JAMES LIU, MD's NPI number?
JAMES LIU, MD's National Provider Identifier (NPI) is 1093101974, issued on 04/08/2015.
Does JAMES LIU, MD prescribe more brand-name or generic drugs?
JAMES LIU, MD's prescribing is 34% brand-name and 66% generic drugs by claim count, with $417K in brand drug costs.
How many Glaucoma Specialist (Ophthalmology) Physician providers are there in the US?
There are 354 Glaucoma Specialist (Ophthalmology) Physician providers across 42 states in the US. The average Glaucoma Specialist (Ophthalmology) Physician provider writes 2,962 Medicare Part D claims per year.
What drugs does JAMES LIU, MD prescribe most often?
Based on 2023 Medicare Part D data, JAMES LIU, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES LIU, MD accept Medicare?
JAMES LIU, MD appears in CMS Medicare data with 5,020 Part D claims and 759 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES LIU, MD's credentials?
JAMES LIU, MD's NPI is 1093101974 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

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.
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