NPI registry status
Active
2026 NPPES data Cornea and External Diseases Specialist Physician NPI 1942206321 M.D.
Verify on CMS → Gerald Rosen, M.D.
Cornea and External Diseases Specialist Physician in Charlotte, North Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 294 in Cornea and External Diseases Specialist Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 343 beneficiaries · Cornea and External Diseases Specialist Physician avg: 1K
Generic prescribing
49%
generic claims · 51% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Industry payments
$388.39
8 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Gerald Rosen, M.D. reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 1,397 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 1K
- Part D claims, 2023
- 49%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Gerald Rosen, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
100 Top 7% higher than 93% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Gerald Rosen, M.D. sits
This provider among cornea and external diseases specialist physician peers
Across the 165 cornea and external diseases specialist physician providers who report both Medicare Part D prescribing and a MIPS quality score, Gerald Rosen, M.D. writes more Part D claims than 58% of them and scores higher on MIPS quality than 87% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one cornea and external diseases specialist physician peer from a representative sample of 60; the gold marker is Gerald Rosen, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Gerald Rosen, 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).
What does the federal data show about Gerald Rosen, M.D.?
High performer (top quartile)Primary specialty
Cornea and External Diseases Specialist Physician
Medicare Part D claims
1,397 13% vs specialty avg
MIPS final score
100/100 16.9 pts vs avg
Specialty distribution in North Carolina
How Cornea and External Diseases Specialist Physician compares to other specialties among North Carolina providers
Medicare quality performance, MIPS
Gerald Rosen, M.D.'s 2023 MIPS final score plotted against the Cornea and External Diseases Specialist Physician national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Cornea and External Diseases Specialist Physician) - 100/100 vs national avg 83.1
How MIPS and board certification work
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).
Gerald Rosen, M.D. appears in the CMS NPPES registry as a Cornea and External Diseases Specialist Physician provider holding M.D. credentials at 135 S SHARON AMITY RD, Charlotte, NC, 28211, with a listed phone of (704) 365-0555. NPI 1942206321 was issued on 06/22/2005.
Medicare Part D records for calendar year 2023 show 1,397 prescription claims written by this provider, covering 343 Medicare beneficiaries and totaling roughly $108K in drug spend, split 51% brand-name and 49% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), 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
Provider Details
| NPI | 1942206321 |
|---|---|
| Specialty | Cornea and External Diseases Specialist Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/22/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Avg: 83.1
100
Quality
Reporting: Group practice
Hospital and facility affiliations
Facilities where Gerald Rosen, 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.
Horizon Eye Care PA
Charlotte, NC
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 Gerald Rosen, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$388
Largest payer
Amgen 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 · Brand-heavy
Gerald Rosen, M.D. - brand share 51.0%
Cornea and External Diseases Specialist Physician average
51% brand-name claims vs 49% generic, on 1,397 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.
1,397
Total Claims
$108K
Total Drug Cost
343
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,167
- Total Day Supply
- 58,866
- Brand vs Generic
- 51% brand / 49% generic
- Brand Drug Cost
- $82K
- Generic Drug Cost
- $26K
- Antibiotic Claims
- 17
Patient Demographics
- Average Patient Age
- 75.7 years
- Avg HCC Risk Score
- 1.40
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 15, 65-74: 140, 75-84: 142, 85+: 46
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gerald Rosen, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisolone Acetate
Prednisolone Acetate
494 claims
- Latanoprost 161
Latanoprost
161 claims
- Ofloxacin 121
Ofloxacin
121 claims
- Timolol Maleate 120
Timolol Maleate
120 claims
- Valacyclovir 54
Valacyclovir
54 claims
- Erythromycin 42
Erythromycin
42 claims
- Acyclovir 41
Acyclovir
41 claims
- Prolensa 33
Prolensa
33 claims
| Drug | Claims |
|---|---|
| Prednisolone Acetate | 494 |
| Latanoprost | 161 |
| Ofloxacin | 121 |
| Timolol Maleate | 120 |
| Valacyclovir Valacyclovir Hcl | 54 |
| Erythromycin Erythromycin Base | 42 |
| Acyclovir | 41 |
| Prolensa Bromfenac Sodium | 33 |
| Difluprednate | 31 |
| Moxifloxacin Moxifloxacin Hcl | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Cornea and External Diseases Specialist Physician in NC →
All providers in North Carolina →
Compare specialties →
Cornea and External Diseases Specialist Physician Overview
How Gerald Rosen, 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
Gerald Rosen, M.D.'s 1,397 claims are above the specialty average of 1,232.
Nearby Cornea and External Diseases Specialist Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Rosen.
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the North Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cornea and External Diseases Specialist Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Gerald Rosen, M.D.'s specialty? ▼
Gerald Rosen, M.D. specializes in Cornea and External Diseases Specialist Physician and practices in Charlotte, North Carolina. Credentials: M.D..
How much does Gerald Rosen, M.D. prescribe under Medicare Part D? ▼
In 2023, Gerald Rosen, M.D. wrote 1,397 Medicare Part D claims totaling $108K in drug costs for 343 beneficiaries.
What is Gerald Rosen, M.D.'s Medicare quality score? ▼
Gerald Rosen, M.D. has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Gerald Rosen, M.D. located? ▼
Gerald Rosen, M.D. is located at 135 S SHARON AMITY RD, Charlotte, NC, 28211. Phone: (704) 365-0555.
What is Gerald Rosen, M.D.'s NPI number? ▼
Gerald Rosen, M.D.'s National Provider Identifier (NPI) is 1942206321, issued on 06/22/2005.
Does Gerald Rosen, M.D. prescribe more brand-name or generic drugs? ▼
Gerald Rosen, M.D.'s prescribing is 51% brand-name and 49% generic drugs by claim count, with $82K 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 Gerald Rosen, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Gerald Rosen, M.D.'s most frequently prescribed drugs include Prednisolone Acetate, Latanoprost, Ofloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gerald Rosen, M.D. accept Medicare? ▼
Gerald Rosen, M.D. appears in CMS Medicare data with 1,397 Part D claims and 343 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gerald Rosen, M.D.'s credentials? ▼
Gerald Rosen, M.D.'s NPI is 1942206321 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.