NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1295141893 M.D.
Verify on CMS → Charles McCanna, M.D.
Ophthalmology Physician in Milwaukee, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,082 in Ophthalmology 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
2K
Medicare Part D claims · 409 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$441.21
22 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
Charles McCanna, M.D. reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 1,551 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 2K
- Part D claims, 2023
- 58%
- 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.
Charles McCanna, 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
75 15th percentile higher than 15% 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 Charles McCanna, M.D. sits
This provider among ophthalmology physician peers
Across the 9,866 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Charles McCanna, M.D. writes more Part D claims than 61% of them and scores higher on MIPS quality than 15% - placing this provider in the high-volume, lower-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 ophthalmology physician peer from a representative sample of 60; the gold marker is Charles McCanna, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Charles McCanna, 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 Charles McCanna, M.D.?
Below national averagePrimary specialty
Ophthalmology Physician
Medicare Part D claims
1,551 9% vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in Wisconsin
How Ophthalmology Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Charles McCanna, M.D.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Ophthalmology Physician) - 75/100 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).
Charles McCanna, M.D. appears in the CMS NPPES registry as an Ophthalmology Physician provider holding M.D. credentials at 2500 W LAYTON AVE, Milwaukee, WI, 53221, with a listed phone of (414) 281-0424. NPI 1295141893 was issued on 07/03/2014.
Medicare Part D records for calendar year 2023 show 1,551 prescription claims written by this provider, covering 409 Medicare beneficiaries and totaling roughly $213K in drug spend, split 42% brand-name and 58% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,082 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
Provider Details
| NPI | 1295141893 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/03/2014 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
Reporting: Group practice
Hospital and facility affiliations
Facilities where Charles McCanna, 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.
Ophthalmology Associates S C
Cudahy, WI
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 Charles McCanna, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$441
Largest payer
Regeneron Healthcare Solutions, 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
Charles McCanna, M.D. - brand share 42.0%
Ophthalmology Physician average
42% brand-name claims vs 58% generic, on 1,551 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.
1,551
Total Claims
$213K
Total Drug Cost
409
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,926
- Total Day Supply
- 84,266
- Brand vs Generic
- 42% brand / 58% generic
- Brand Drug Cost
- $148K
- Generic Drug Cost
- $66K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 76.5 years
- Avg HCC Risk Score
- 1.43
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 22, 65-74: 160, 75-84: 143, 85+: 84
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Charles McCanna, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
501 claims
- Prednisolone Acetate 183
Prednisolone Acetate
183 claims
- Timolol Maleate 124
Timolol Maleate
124 claims
- Ketorolac Trometha… 118
Ketorolac Tromethamine
118 claims
- Moxifloxacin 91
Moxifloxacin
91 claims
- Dorzolamide-Timolol 77
Dorzolamide-Timolol
77 claims
- Simbrinza 62
Simbrinza
62 claims
- Brimonidine Tartrate 52
Brimonidine Tartrate
52 claims
| Drug | Claims |
|---|---|
| Latanoprost | 501 |
| Prednisolone Acetate | 183 |
| Timolol Maleate | 124 |
| Ketorolac Tromethamine | 118 |
| Moxifloxacin Moxifloxacin Hcl | 91 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 77 |
| Simbrinza Brinzolamide/Brimonidine Tart | 62 |
| Brimonidine Tartrate | 52 |
| Restasis Cyclosporine | 38 |
| Lumigan Bimatoprost | 31 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Charles McCanna, M.D. fits within the Ophthalmology Physician landscape nationally.
22,082
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider
Charles McCanna, M.D.'s 1,551 claims are above the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as McCanna.
Dr. Nausheen Abbas
M.D.
West Bend, WI
Dr. Omar Abdelmegid
MD
Beaver Dam, WI
Dr. Jacob Abou-Hanna
MD
Madison, WI
Dr. Julia Agapov
DO
Madison, WI
Dr. Swati Agarwal-Sinha
MD
Green Bay, WI
Compare Ophthalmology Physician nationally: see state-by-state distribution →
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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Ophthalmology 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 Charles McCanna, M.D.'s specialty? ▼
Charles McCanna, M.D. specializes in Ophthalmology Physician and practices in Milwaukee, Wisconsin. Credentials: M.D..
How much does Charles McCanna, M.D. prescribe under Medicare Part D? ▼
In 2023, Charles McCanna, M.D. wrote 1,551 Medicare Part D claims totaling $213K in drug costs for 409 beneficiaries.
What is Charles McCanna, M.D.'s Medicare quality score? ▼
Charles McCanna, M.D. has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Charles McCanna, M.D. located? ▼
Charles McCanna, M.D. is located at 2500 W LAYTON AVE, Milwaukee, WI, 53221. Phone: (414) 281-0424.
What is Charles McCanna, M.D.'s NPI number? ▼
Charles McCanna, M.D.'s National Provider Identifier (NPI) is 1295141893, issued on 07/03/2014.
Does Charles McCanna, M.D. prescribe more brand-name or generic drugs? ▼
Charles McCanna, M.D.'s prescribing is 42% brand-name and 58% generic drugs by claim count, with $148K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,082 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 Charles McCanna, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Charles McCanna, M.D.'s most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charles McCanna, M.D. accept Medicare? ▼
Charles McCanna, M.D. appears in CMS Medicare data with 1,551 Part D claims and 409 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles McCanna, M.D.'s credentials? ▼
Charles McCanna, M.D.'s NPI is 1295141893 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.