2026 NPPES data Cornea and External Diseases Specialist Physician NPI 1023540846 M.D.
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JOSEPH MEKHAIL, M.D.

Cornea and External Diseases Specialist Physician in GREENBELT, 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
1K
Medicare Part D claims · 318 beneficiaries · Cornea and External Diseases Specialist Physician avg: 1K
Generic prescribing
57%
generic claims · 43% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.8562/100
▲ 14 pts above national avg 83.1 · [object Object]
Industry payments
$645.29
26 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JOSEPH MEKHAIL, M.D. is a Cornea and External Diseases Specialist Physician ([object Object]) practicing in GREENBELT, Maryland with a Medicare Part D prescribing footprint of 1K claims across 318 beneficiaries — 43% brand-name prescribing . Their CMS MIPS Final Score of 96.8562/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $645.29 across 26 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JOSEPH MEKHAIL, M.D. reported a CMS MIPS final score of 96.8562 out of 100, above the 83.1 national average, and filed 1,271 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)

JOSEPH MEKHAIL, 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).

JOSEPH MEKHAIL, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 03/30/2017

NPI 1023540846

Primary specialty

Cornea and External Diseases Specialist Physician

Rare

294 US NPIs in this specialty

Medicare Part D claims

1,271 3% vs specialty avg

2023 prescription claims

Specialty avg: 1,232

MIPS final score

96.8562/100 13.756200000000007% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Maryland

How Cornea and External Diseases Specialist Physician compares to other specialties among Maryland providers

Maryland providers

Cornea and External Diseases Specialist Physician share within Maryland

1. Cornea and External Diseases Specialist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cornea and External Diseases Specialist Physician share within Maryland

Medicare quality performance — MIPS

JOSEPH MEKHAIL, M.D.'s 2023 MIPS final score plotted against the Cornea and External Diseases Specialist Physician national average

High performer (top quartile)
MIPS Final Score
96.8562/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Cornea and External Diseases Specialist Physician) — 96.8562/100 vs national avg 83.1

0%100%National avg83%96.9%
MIPS final score (Cornea and External Diseases Specialist Physician) — 96.8562/100 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).

JOSEPH MEKHAIL, M.D. is a Cornea and External Diseases Specialist Physician provider practicing in GREENBELT, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1023540846. 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.

JOSEPH MEKHAIL, M.D. appears in the CMS NPPES registry as a Cornea and External Diseases Specialist Physician provider holding M.D. credentials at 7500 GREENWAY CENTER DR STE 300, GREENBELT, MD, 20770, with a listed phone of (301) 277-4844. NPI 1023540846 was issued on 03/30/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MEKHAIL 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 1,271 prescription claims written by this provider, covering 318 Medicare beneficiaries and totaling roughly $189K in drug spend, split 43% brand-name and 57% 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 96.8562/100 for the 2023 performance year (Quality 100, Cost 85.1514), compared with the national average of 83.1.

Cornea and External Diseases Specialist Physician is a narrow specialty nationwide, with 294 enrolled providers across 43 states and an average of 1,232 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

7500 GREENWAY CENTER DR STE 300
GREENBELT, MD 20770

Provider Details

NPI 1023540846
Specialty Cornea and External Diseases Specialist Physician
Credentials M.D.
Gender Male
NPI Issued 03/30/2017

CMS Quality Score (MIPS)

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

96.8562
Final Score
Avg: 83.1
100
Quality
85.1514
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where JOSEPH MEKHAIL, 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.

WASHINGTON EYE INSTITUTE, LLC
CUMBERLAND, 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 JOSEPH MEKHAIL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$645

Largest payer

Bausch & Lomb Americas 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

JOSEPH MEKHAIL, M.D. — brand share 43.0%
Specialty average (est.)

43% brand-name claims vs 57% generic, on 1,271 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.

1,271
Total Claims
$189K
Total Drug Cost
318
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,998
Total Day Supply
53,998
Brand vs Generic
43% brand / 57% generic
Brand Drug Cost
$162K
Generic Drug Cost
$27K

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.32
Gender Split
60% female / 40% male
Age Distribution
<65: 33, 65-74: 145, 75-84: 100, 85+: 40

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prednisolone Acetate
245
Ofloxacin
159
Latanoprost
138
Ketorolac Tromethamine
121
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
87
Timolol Maleate
76
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
61
Brimonidine Tartrate
37
Restasis
Cyclosporine
32
Rhopressa
Netarsudil Mesylate
30

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

Cornea and External Diseases Specialist Physician Overview

How JOSEPH MEKHAIL, M.D. fits within the Cornea and External Diseases Specialist Physician landscape nationally.

294
Cornea and External Diseases Specialist Physician Providers in US
43
States with Cornea and External Diseases Specialist Physician
1,232
Avg Claims per Provider

JOSEPH MEKHAIL, M.D.'s 1,271 claims are above the specialty average of 1,232.

Nearby Cornea and External Diseases Specialist Physician Providers in Maryland

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

Compare Cornea and External Diseases Specialist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOSEPH MEKHAIL, M.D.'s specialty?
JOSEPH MEKHAIL, M.D. specializes in Cornea and External Diseases Specialist Physician and practices in GREENBELT, Maryland. Credentials: M.D..
How much does JOSEPH MEKHAIL, M.D. prescribe under Medicare Part D?
In 2023, JOSEPH MEKHAIL, M.D. wrote 1,271 Medicare Part D claims totaling $189K in drug costs for 318 beneficiaries.
What is JOSEPH MEKHAIL, M.D.'s Medicare quality score?
JOSEPH MEKHAIL, M.D. has a CMS MIPS Final Score of 96.8562/100 (Quality: 100, Cost: 85.1514). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOSEPH MEKHAIL, M.D. located?
JOSEPH MEKHAIL, M.D. is located at 7500 GREENWAY CENTER DR STE 300, GREENBELT, MD, 20770. Phone: (301) 277-4844.
What is JOSEPH MEKHAIL, M.D.'s NPI number?
JOSEPH MEKHAIL, M.D.'s National Provider Identifier (NPI) is 1023540846, issued on 03/30/2017.
Does JOSEPH MEKHAIL, M.D. prescribe more brand-name or generic drugs?
JOSEPH MEKHAIL, M.D.'s prescribing is 43% brand-name and 57% generic drugs by claim count, with $162K in brand drug costs.
How many Cornea and External Diseases Specialist Physician providers are there in the US?
There are 294 Cornea and External Diseases Specialist Physician providers across 43 states in the US. The average Cornea and External Diseases Specialist Physician provider writes 1,232 Medicare Part D claims per year.
What drugs does JOSEPH MEKHAIL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JOSEPH MEKHAIL, M.D.'s most frequently prescribed drugs include Prednisolone Acetate, Ofloxacin, Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSEPH MEKHAIL, M.D. accept Medicare?
JOSEPH MEKHAIL, M.D. appears in CMS Medicare data with 1,271 Part D claims and 318 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSEPH MEKHAIL, M.D.'s credentials?
JOSEPH MEKHAIL, M.D.'s NPI is 1023540846 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