2026 NPPES data Ophthalmology Physician NPI 1700104346 MD
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EVAN WARNER, MD

Ophthalmology Physician in MADISON, Wisconsin. 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
991
Medicare Part D claims · 299 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
42%
generic claims · 58% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

EVAN WARNER, MD filed 991 Medicare Part D claims in 2023 as a Ophthalmology Physician in MADISON, Wisconsin, prescribing 42% generic.

991
Part D claims, 2023
42%
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.

EVAN WARNER, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

991 Top 25% higher than 75% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

EVAN WARNER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 EVAN WARNER, MD?

Quality data not reported

NPI registry status

Active

Issued 05/06/2010

NPI 1700104346

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

991 30% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Wisconsin

How Ophthalmology Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Ophthalmology Physician share within Wisconsin

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

Specialty board-certification context

Estimated specialty board-certified rate — Ophthalmology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Ophthalmology Physician ABMS/AOA estimate

Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Ophthalmology Physician) — ABMS / AOA estimate

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).

EVAN WARNER, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 5249 E TERRACE DR, MADISON, WI, 53718, with a listed phone of (608) 263-7171. NPI 1700104346 was issued on 05/06/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WARNER 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 991 prescription claims written by this provider, covering 299 Medicare beneficiaries and totaling roughly $124K in drug spend, split 58% brand-name and 42% 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.

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

5249 E TERRACE DR
MADISON, WI 53718

Provider Details

NPI 1700104346
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 05/06/2010

Hospital and facility affiliations

Facilities where EVAN WARNER, MD 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.

UNIVERSITY OF WISCONSIN MEDICAL FOUNDATION INC
MADISON, 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).

Brand vs generic prescribing mix · Brand-heavy

EVAN WARNER, MD — brand share 58.0%
Specialty average (est.)

58% brand-name claims vs 42% generic, on 991 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.

991
Total Claims
$124K
Total Drug Cost
299
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,444
Total Day Supply
37,576
Brand vs Generic
58% brand / 42% generic
Brand Drug Cost
$104K
Generic Drug Cost
$20K
Antibiotic Claims
44

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.10
Gender Split
61% female / 39% male
Age Distribution
<65: 19, 65-74: 159, 75-84: 83, 85+: 38

Top Prescribed Drugs (Medicare Part D)

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

What EVAN WARNER, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Prednisolone Acetate
264
Fluorometholone
184
Moxifloxacin
Moxifloxacin Hcl
131
Valacyclovir
Valacyclovir Hcl
98
Restasis
Cyclosporine
43
Difluprednate
30
Timolol Maleate
27
Cyclosporine
23
Doxycycline Hyclate
21
Vancomycin Hcl
20

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

Ophthalmology Physician Overview

How EVAN WARNER, MD 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

EVAN WARNER, MD's 991 claims are below 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 WARNER.

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

Frequently Asked Questions

What is EVAN WARNER, MD's specialty?
EVAN WARNER, MD specializes in Ophthalmology Physician and practices in MADISON, Wisconsin. Credentials: MD.
How much does EVAN WARNER, MD prescribe under Medicare Part D?
In 2023, EVAN WARNER, MD wrote 991 Medicare Part D claims totaling $124K in drug costs for 299 beneficiaries.
Where is EVAN WARNER, MD located?
EVAN WARNER, MD is located at 5249 E TERRACE DR, MADISON, WI, 53718. Phone: (608) 263-7171.
What is EVAN WARNER, MD's NPI number?
EVAN WARNER, MD's National Provider Identifier (NPI) is 1700104346, issued on 05/06/2010.
Does EVAN WARNER, MD prescribe more brand-name or generic drugs?
EVAN WARNER, MD's prescribing is 58% brand-name and 42% generic drugs by claim count, with $104K 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 EVAN WARNER, MD prescribe most often?
Based on 2023 Medicare Part D data, EVAN WARNER, MD's most frequently prescribed drugs include Prednisolone Acetate, Fluorometholone, Moxifloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does EVAN WARNER, MD accept Medicare?
EVAN WARNER, MD appears in CMS Medicare data with 991 Part D claims and 299 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify EVAN WARNER, MD's credentials?
EVAN WARNER, MD's NPI is 1700104346 with credentials MD. 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.
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