2026 NPPES data Ophthalmology Physician NPI 1578561551 MD
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GINA GLADSTEIN, MD

Ophthalmology Physician in GREENWICH, Connecticut. 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
1K
Medicare Part D claims · 297 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
59%
generic claims · 41% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
82.2541/100
▼ 1 pts below national avg 83.1 · [object Object]
Industry payments
$94.75
4 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GINA GLADSTEIN, MD is a Ophthalmology Physician ([object Object]) practicing in GREENWICH, Connecticut with a Medicare Part D prescribing footprint of 1K claims across 297 beneficiaries — 41% brand-name prescribing . Their CMS MIPS Final Score of 82.2541/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $94.75 across 4 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GINA GLADSTEIN, MD reported a CMS MIPS final score of 82.2541 out of 100, below the 83.1 national average, and filed 1,113 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)

GINA GLADSTEIN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

GINA GLADSTEIN, MD at a glance

Near national average

NPI registry status

Active

Issued 07/13/2005

NPI 1578561551

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,113 22% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

82.2541/100 0.8459000000000003% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Connecticut

How Ophthalmology Physician compares to other specialties among Connecticut providers

Connecticut providers

Ophthalmology Physician share within Connecticut

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Connecticut

Medicare quality performance — MIPS

GINA GLADSTEIN, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

Near national average
MIPS Final Score
82.2541/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 82.2541/100 vs national avg 83.1

0%100%National avg83%82.3%
MIPS final score (Ophthalmology Physician) — 82.2541/100 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).

GINA GLADSTEIN, MD is a Ophthalmology Physician provider practicing in GREENWICH, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1578561551. 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.

GINA GLADSTEIN, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 4 DEARFIELD DR, GREENWICH, CT, 06831, with a listed phone of (203) 869-3082. NPI 1578561551 was issued on 07/13/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GLADSTEIN 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 1,113 prescription claims written by this provider, covering 297 Medicare beneficiaries and totaling roughly $256K in drug spend, split 41% brand-name and 59% 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 82.2541/100 for the 2023 performance year (Quality 75.371), compared with the national average of 83.1.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

4 DEARFIELD DR
GREENWICH, CT 06831

Provider Details

NPI 1578561551
Specialty Ophthalmology Physician
Credentials MD
Gender Female
NPI Issued 07/13/2005

CMS Quality Score (MIPS)

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

82.2541
Final Score
Avg: 83.1
75.371
Quality
86
Promoting Interoperability

Reporting: Individual

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 GINA GLADSTEIN, MD. Source: openpaymentsdata.cms.gov.

Total received

$95

Largest payer

Oyster Point Pharma, 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

GINA GLADSTEIN, MD — brand share 41.0%
Specialty average (est.)

41% brand-name claims vs 59% generic, on 1,113 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.

1,113
Total Claims
$256K
Total Drug Cost
297
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,350
Total Day Supply
69,424
Brand vs Generic
41% brand / 59% generic
Brand Drug Cost
$212K
Generic Drug Cost
$44K

Patient Demographics

Average Patient Age
79.2 years
Avg HCC Risk Score
1.02
Gender Split
62% female / 38% 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
Timolol Maleate
260
Latanoprost
204
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
164
Lumigan
Bimatoprost
121
Simbrinza
Brinzolamide/Brimonidine Tart
41
Restasis
Cyclosporine
39
Dorzolamide Hcl
25
Brimonidine Tartrate
20
Rocklatan
Netarsudil Mesylat/Latanoprost
18

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

Ophthalmology Physician Overview

How GINA GLADSTEIN, MD fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

GINA GLADSTEIN, MD's 1,113 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Connecticut

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

Compare Ophthalmology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GINA GLADSTEIN, MD's specialty?
GINA GLADSTEIN, MD specializes in Ophthalmology Physician and practices in GREENWICH, Connecticut. Credentials: MD.
How much does GINA GLADSTEIN, MD prescribe under Medicare Part D?
In 2023, GINA GLADSTEIN, MD wrote 1,113 Medicare Part D claims totaling $256K in drug costs for 297 beneficiaries.
What is GINA GLADSTEIN, MD's Medicare quality score?
GINA GLADSTEIN, MD has a CMS MIPS Final Score of 82.2541/100 (Quality: 75.371). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GINA GLADSTEIN, MD located?
GINA GLADSTEIN, MD is located at 4 DEARFIELD DR, GREENWICH, CT, 06831. Phone: (203) 869-3082.
What is GINA GLADSTEIN, MD's NPI number?
GINA GLADSTEIN, MD's National Provider Identifier (NPI) is 1578561551, issued on 07/13/2005.
Does GINA GLADSTEIN, MD prescribe more brand-name or generic drugs?
GINA GLADSTEIN, MD's prescribing is 41% brand-name and 59% generic drugs by claim count, with $212K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does GINA GLADSTEIN, MD prescribe most often?
Based on 2023 Medicare Part D data, GINA GLADSTEIN, MD's most frequently prescribed drugs include Timolol Maleate, Latanoprost, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GINA GLADSTEIN, MD accept Medicare?
GINA GLADSTEIN, MD appears in CMS Medicare data with 1,113 Part D claims and 297 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GINA GLADSTEIN, MD's credentials?
GINA GLADSTEIN, MD's NPI is 1578561551 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