2026 NPPES data Ophthalmology Physician NPI 1922114834 M.D.
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MARCOS DOXANAS, M.D.

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
2K
Medicare Part D claims · 736 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
60%
generic claims · 40% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
51.3087/100
▼ 32 pts below national avg 83.1 · [object Object]
Industry payments
$490.86
16 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARCOS DOXANAS, M.D. is a Ophthalmology Physician ([object Object]) practicing in BALTIMORE, Maryland with a Medicare Part D prescribing footprint of 2K claims across 736 beneficiaries — 40% brand-name prescribing . Their CMS MIPS Final Score of 51.3087/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $490.86 across 16 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARCOS DOXANAS, M.D. reported a CMS MIPS final score of 51.3087 out of 100, below the 83.1 national average, and filed 1,926 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)

MARCOS DOXANAS, 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).

MARCOS DOXANAS, M.D. at a glance

Below national average

NPI registry status

Active

Issued 08/22/2006

NPI 1922114834

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,926 36% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

51.3087/100 31.791299999999993% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Maryland

How Ophthalmology Physician compares to other specialties among Maryland providers

Maryland providers

Ophthalmology Physician share within Maryland

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

Medicare quality performance — MIPS

MARCOS DOXANAS, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

Below national average
MIPS Final Score
51.3087/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 51.3087/100 vs national avg 83.1

0%100%National avg83%51.3%
MIPS final score (Ophthalmology Physician) — 51.3087/100 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).

MARCOS DOXANAS, M.D. is a Ophthalmology Physician provider practicing in BALTIMORE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1922114834. 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.

MARCOS DOXANAS, M.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D. credentials at 6231 N CHARLES ST, BALTIMORE, MD, 21212, with a listed phone of (410) 377-2044. NPI 1922114834 was issued on 08/22/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DOXANAS 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 1,926 prescription claims written by this provider, covering 736 Medicare beneficiaries and totaling roughly $151K in drug spend, split 40% brand-name and 60% 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 51.3087/100 for the 2023 performance year (Quality 100, Cost 21.029), 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

6231 N CHARLES ST
BALTIMORE, MD 21212

Provider Details

NPI 1922114834
Specialty Ophthalmology Physician
Credentials M.D.
Gender Male
NPI Issued 08/22/2006

CMS Quality Score (MIPS)

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

51.3087
Final Score
Avg: 83.1
100
Quality
21.029
Cost
0
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARCOS DOXANAS, 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.

CHESAPEAKE EYE CARE AND LASER CENTER LLC
ANNAPOLIS, MD

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 MARCOS DOXANAS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$491

Largest payer

RxSight 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

MARCOS DOXANAS, M.D. — brand share 40.0%
Specialty average (est.)

40% brand-name claims vs 60% generic, on 1,926 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.

1,926
Total Claims
$151K
Total Drug Cost
736
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,053
Total Day Supply
79,769
Brand vs Generic
40% brand / 60% generic
Brand Drug Cost
$124K
Generic Drug Cost
$28K
Antibiotic Claims
67

Patient Demographics

Average Patient Age
78.3 years
Avg HCC Risk Score
1.01
Gender Split
69% female / 31% 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
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
569
Latanoprost
365
Prednisolone Acetate
247
Timolol Maleate
102
Brimonidine Tartrate
93
Dorzolamide Hcl
67
Combigan
Brimonidine Tartrate/Timolol
62
Cromolyn Sodium
54
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
50
Lumigan
Bimatoprost
50

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

Ophthalmology Physician Overview

How MARCOS DOXANAS, M.D. 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

MARCOS DOXANAS, M.D.'s 1,926 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Maryland

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

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

Frequently Asked Questions

What is MARCOS DOXANAS, M.D.'s specialty?
MARCOS DOXANAS, M.D. specializes in Ophthalmology Physician and practices in BALTIMORE, Maryland. Credentials: M.D..
How much does MARCOS DOXANAS, M.D. prescribe under Medicare Part D?
In 2023, MARCOS DOXANAS, M.D. wrote 1,926 Medicare Part D claims totaling $151K in drug costs for 736 beneficiaries.
What is MARCOS DOXANAS, M.D.'s Medicare quality score?
MARCOS DOXANAS, M.D. has a CMS MIPS Final Score of 51.3087/100 (Quality: 100, Cost: 21.029). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARCOS DOXANAS, M.D. located?
MARCOS DOXANAS, M.D. is located at 6231 N CHARLES ST, BALTIMORE, MD, 21212. Phone: (410) 377-2044.
What is MARCOS DOXANAS, M.D.'s NPI number?
MARCOS DOXANAS, M.D.'s National Provider Identifier (NPI) is 1922114834, issued on 08/22/2006.
Does MARCOS DOXANAS, M.D. prescribe more brand-name or generic drugs?
MARCOS DOXANAS, M.D.'s prescribing is 40% brand-name and 60% generic drugs by claim count, with $124K 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 MARCOS DOXANAS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARCOS DOXANAS, M.D.'s most frequently prescribed drugs include Neomycin-Polymyxin-Dexameth, Latanoprost, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARCOS DOXANAS, M.D. accept Medicare?
MARCOS DOXANAS, M.D. appears in CMS Medicare data with 1,926 Part D claims and 736 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARCOS DOXANAS, M.D.'s credentials?
MARCOS DOXANAS, M.D.'s NPI is 1922114834 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