2026 NPPES data Retina Specialist (Ophthalmology) Physician NPI 1992820641 M.D.
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CHRISTINA ANTONOPOULOS, M.D.

Retina Specialist (Ophthalmology) Physician in BALTIMORE, Maryland. 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
286
Medicare Part D claims · 66 beneficiaries · Retina Specialist (Ophthalmology) Physician avg: 558
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · [object Object]
Industry payments
$99.99
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CHRISTINA ANTONOPOULOS, M.D. is a Retina Specialist (Ophthalmology) Physician ([object Object]) practicing in BALTIMORE, Maryland with a Medicare Part D prescribing footprint of 286 claims across 66 beneficiaries — 33% brand-name prescribing . Their CMS MIPS Final Score of 0/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $99.99 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CHRISTINA ANTONOPOULOS, M.D. reported a CMS MIPS final score of 0 out of 100, below the 83.1 national average, and filed 286 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)

CHRISTINA ANTONOPOULOS, M.D. 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).

CHRISTINA ANTONOPOULOS, M.D. at a glance

Below national average

NPI registry status

Active

Issued 03/20/2007

NPI 1992820641

Primary specialty

Retina Specialist (Ophthalmology) Physician

Niche

913 US NPIs in this specialty

Medicare Part D claims

286 49% vs specialty avg

2023 prescription claims

Specialty avg: 558

MIPS final score

0/100 83.1% pts

Penalty band band

vs 83.1 national avg

Specialty distribution in Maryland

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

Maryland providers

Retina Specialist (Ophthalmology) Physician share within Maryland

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

Medicare quality performance — MIPS

CHRISTINA ANTONOPOULOS, M.D.'s 2023 MIPS final score plotted against the Retina Specialist (Ophthalmology) Physician national average

Below national average
MIPS Final Score
0/100
vs 83.1 national avg · 2023 performance year

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

0%100%National avg83%0%
MIPS final score (Retina Specialist (Ophthalmology) Physician) — 0/100 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).

CHRISTINA ANTONOPOULOS, M.D. is a Retina Specialist (Ophthalmology) Physician provider practicing in BALTIMORE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1992820641. 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.

CHRISTINA ANTONOPOULOS, M.D. appears in the CMS NPPES registry as a Retina Specialist (Ophthalmology) Physician provider holding M.D. credentials at 2925 LORD BALTIMORE DR, BALTIMORE, MD, 21244, with a listed phone of (410) 277-3937. NPI 1992820641 was issued on 03/20/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANTONOPOULOS 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 286 prescription claims written by this provider, covering 66 Medicare beneficiaries and totaling roughly $20K in drug spend, split 33% brand-name and 67% 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 0/100 for the 2023 performance year (Quality 0), 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

2925 LORD BALTIMORE DR
BALTIMORE, MD 21244

Provider Details

NPI 1992820641
Specialty Retina Specialist (Ophthalmology) Physician
Credentials M.D.
Gender Female
NPI Issued 03/20/2007

CMS Quality Score (MIPS)

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

0
Final Score
Avg: 83.1
0
Quality

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 CHRISTINA ANTONOPOULOS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$100

Largest payer

Optos, Inc.

Most common payment type

Entertainment

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

CHRISTINA ANTONOPOULOS, M.D. — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 286 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.

286
Total Claims
$20K
Total Drug Cost
66
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
464
Total Day Supply
13,063
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$14K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
75.8 years
Avg HCC Risk Score
1.47
Gender Split
50% female / 50% 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
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
62
Latanoprost
55
Prednisolone Acetate
38
Timolol Maleate
21
Combigan
Brimonidine Tartrate/Timolol
13
Cyclosporine
13
Brimonidine Tartrate
11
Ofloxacin
11

* 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 CHRISTINA ANTONOPOULOS, M.D. 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

CHRISTINA ANTONOPOULOS, M.D.'s 286 claims are below the specialty average of 558.

Nearby Retina Specialist (Ophthalmology) Physician Providers in Maryland

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

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

Frequently Asked Questions

What is CHRISTINA ANTONOPOULOS, M.D.'s specialty?
CHRISTINA ANTONOPOULOS, M.D. specializes in Retina Specialist (Ophthalmology) Physician and practices in BALTIMORE, Maryland. Credentials: M.D..
How much does CHRISTINA ANTONOPOULOS, M.D. prescribe under Medicare Part D?
In 2023, CHRISTINA ANTONOPOULOS, M.D. wrote 286 Medicare Part D claims totaling $20K in drug costs for 66 beneficiaries.
What is CHRISTINA ANTONOPOULOS, M.D.'s Medicare quality score?
CHRISTINA ANTONOPOULOS, M.D. has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHRISTINA ANTONOPOULOS, M.D. located?
CHRISTINA ANTONOPOULOS, M.D. is located at 2925 LORD BALTIMORE DR, BALTIMORE, MD, 21244. Phone: (410) 277-3937.
What is CHRISTINA ANTONOPOULOS, M.D.'s NPI number?
CHRISTINA ANTONOPOULOS, M.D.'s National Provider Identifier (NPI) is 1992820641, issued on 03/20/2007.
Does CHRISTINA ANTONOPOULOS, M.D. prescribe more brand-name or generic drugs?
CHRISTINA ANTONOPOULOS, M.D.'s prescribing is 33% brand-name and 67% generic drugs by claim count, with $14K 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 CHRISTINA ANTONOPOULOS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHRISTINA ANTONOPOULOS, M.D.'s most frequently prescribed drugs include Dorzolamide-Timolol, Latanoprost, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTINA ANTONOPOULOS, M.D. accept Medicare?
CHRISTINA ANTONOPOULOS, M.D. appears in CMS Medicare data with 286 Part D claims and 66 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTINA ANTONOPOULOS, M.D.'s credentials?
CHRISTINA ANTONOPOULOS, M.D.'s NPI is 1992820641 with credentials M.D.. 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