2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1891807137 MD
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DAVID GLASER, MD

Retina Specialist (Ophthalmology) Physician in FLORISSANT, 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
391
Medicare Part D claims · 138 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$1.6K
38 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DAVID GLASER, MD is a Retina Specialist (Ophthalmology) Physician ([object Object]) practicing in FLORISSANT, Missouri with a Medicare Part D prescribing footprint of 391 claims across 138 beneficiaries — 42% brand-name prescribing . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $1.6K across 38 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DAVID GLASER, MD reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 391 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DAVID GLASER, MD 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).

DAVID GLASER, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 08/31/2006

NPI 1891807137

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

391 30% vs specialty avg

2023 prescription claims

Specialty avg: 558

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Missouri

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

Missouri providers

Retina Specialist (Ophthalmology) Physician share within Missouri

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

Medicare quality performance — MIPS

DAVID GLASER, MD's 2023 MIPS final score plotted against the Retina Specialist (Ophthalmology) Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Retina Specialist (Ophthalmology) Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Retina Specialist (Ophthalmology) Physician) — 100/100 vs national avg 83.1

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).

DAVID GLASER, MD is a Retina Specialist (Ophthalmology) Physician provider practicing in FLORISSANT, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1891807137. 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.

DAVID GLASER, MD appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding MD credentials at 1224 GRAHAM RD, FLORISSANT, MO, 63031, with a listed phone of (314) 839-1211. NPI 1891807137 was issued on 08/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GLASER 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 391 prescription claims written by this provider, covering 138 Medicare beneficiaries and totaling roughly $59K 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 100/100 for the 2023 performance year (Quality 98.9721), compared with the national average of 83.1.

Retina Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 913 enrolled providers across 48 states and an average of 558 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

1224 GRAHAM RD
FLORISSANT, MO 63031

Provider Details

NPI 1891807137
Specialty Retina Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 08/31/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

100
Final Score
Avg: 83.1
98.9721
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where DAVID GLASER, 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.

RETINA ASSOCIATES OF ST LOUIS, INC
FLORISSANT, 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 DAVID GLASER, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.6K

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

DAVID GLASER, MD — brand share 42.0%
Specialty average (est.)

42% brand-name claims vs 58% generic, on 391 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.

391
Total Claims
$59K
Total Drug Cost
138
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
584
Total Day Supply
16,203
Brand vs Generic
42% brand / 58% generic
Brand Drug Cost
$49K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
77.0 years
Avg HCC Risk Score
1.73
Gender Split
53% female / 47% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
68
Prolensa
Bromfenac Sodium
56
Latanoprost
51
Ketorolac Tromethamine
35
Brimonidine Tartrate-Timolol
Brimonidine Tartrate/Timolol
21
Lumigan
Bimatoprost
19
Prednisolone Acetate
19
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
17
Acetazolamide
14
Timolol Maleate
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Retina Specialist (Ophthalmology) Physician Overview

How DAVID GLASER, MD fits within the Retina Specialist (Ophthalmology) Physician landscape nationally.

913
Retina Specialist (Ophthalmology) Physician Providers in US
48
States with Retina Specialist (Ophthalmology) Physician
558
Avg Claims per Provider

DAVID GLASER, MD's 391 claims are below the specialty average of 558.

Nearby Retina Specialist (Ophthalmology) Physician Providers in Missouri

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

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

Frequently Asked Questions

What is DAVID GLASER, MD's specialty?
DAVID GLASER, MD specializes in Retina Specialist (Ophthalmology) Physician and practices in FLORISSANT, Missouri. Credentials: MD.
How much does DAVID GLASER, MD prescribe under Medicare Part D?
In 2023, DAVID GLASER, MD wrote 391 Medicare Part D claims totaling $59K in drug costs for 138 beneficiaries.
What is DAVID GLASER, MD's Medicare quality score?
DAVID GLASER, MD has a CMS MIPS Final Score of 100/100 (Quality: 98.9721). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DAVID GLASER, MD located?
DAVID GLASER, MD is located at 1224 GRAHAM RD, FLORISSANT, MO, 63031. Phone: (314) 839-1211.
What is DAVID GLASER, MD's NPI number?
DAVID GLASER, MD's National Provider Identifier (NPI) is 1891807137, issued on 08/31/2006.
Does DAVID GLASER, MD prescribe more brand-name or generic drugs?
DAVID GLASER, MD's prescribing is 42% brand-name and 58% generic drugs by claim count, with $49K in brand drug costs.
How many Retina Specialist (Ophthalmology) Physician providers are there in the US?
There are 913 Retina Specialist (Ophthalmology) Physician providers across 48 states in the US. The average Retina Specialist (Ophthalmology) Physician provider writes 558 Medicare Part D claims per year.
What drugs does DAVID GLASER, MD prescribe most often?
Based on 2023 Medicare Part D data, DAVID GLASER, MD's most frequently prescribed drugs include Tobramycin-Dexamethasone, Prolensa, Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID GLASER, MD accept Medicare?
DAVID GLASER, MD appears in CMS Medicare data with 391 Part D claims and 138 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID GLASER, MD's credentials?
DAVID GLASER, MD's NPI is 1891807137 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.
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