2026 NPPES data Ophthalmology Physician NPI 1942286190 MD
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EARL NEPPLE, MD

Ophthalmology Physician in WEST BEND, 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
214
Medicare Part D claims · 35 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
29%
generic claims · 71% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

EARL NEPPLE, MD filed 214 Medicare Part D claims in 2023 as a Ophthalmology Physician in WEST BEND, Wisconsin, prescribing 29% generic.

214
Part D claims, 2023
29%
generic prescribing

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.

EARL NEPPLE, MD's Medicare Part D volume vs every U.S. prescriber

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

214 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 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-eligible specialty (heuristic — not verified)

EARL NEPPLE, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about EARL NEPPLE, MD?

Quality data not reported

NPI registry status

Active

Issued 12/20/2005

NPI 1942286190

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

214 85% 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).

EARL NEPPLE, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 1201 OAK STREET, WEST BEND, WI, 53095, with a listed phone of (262) 338-0505. NPI 1942286190 was issued on 12/20/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NEPPLE 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 214 prescription claims written by this provider, covering 35 Medicare beneficiaries and totaling roughly $47K in drug spend, split 71% brand-name and 29% 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

1201 OAK STREET
WEST BEND, WI 53095

Provider Details

NPI 1942286190
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 12/20/2005

Brand vs generic prescribing mix · Brand-heavy

EARL NEPPLE, MD — brand share 71.0%
Specialty average (est.)

71% brand-name claims vs 29% generic, on 214 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.

214
Total Claims
$47K
Total Drug Cost
35
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
323
Total Day Supply
9,099
Brand vs Generic
71% brand / 29% generic
Brand Drug Cost
$42K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
78.6 years
Avg HCC Risk Score
1.41
Gender Split
60% female / 40% male

Top Prescribed Drugs (Medicare Part D)

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

What EARL NEPPLE, 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
Latanoprost
73
Lumigan
Bimatoprost
43
Combigan
Brimonidine Tartrate/Timolol
17
Timolol Maleate
16
Simbrinza
Brinzolamide/Brimonidine Tart
14
Xiidra
Lifitegrast
11

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

Ophthalmology Physician Overview

How EARL NEPPLE, 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

EARL NEPPLE, MD's 214 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 NEPPLE.

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

Frequently Asked Questions

What is EARL NEPPLE, MD's specialty?
EARL NEPPLE, MD specializes in Ophthalmology Physician and practices in WEST BEND, Wisconsin. Credentials: MD.
How much does EARL NEPPLE, MD prescribe under Medicare Part D?
In 2023, EARL NEPPLE, MD wrote 214 Medicare Part D claims totaling $47K in drug costs for 35 beneficiaries.
Where is EARL NEPPLE, MD located?
EARL NEPPLE, MD is located at 1201 OAK STREET, WEST BEND, WI, 53095. Phone: (262) 338-0505.
What is EARL NEPPLE, MD's NPI number?
EARL NEPPLE, MD's National Provider Identifier (NPI) is 1942286190, issued on 12/20/2005.
Does EARL NEPPLE, MD prescribe more brand-name or generic drugs?
EARL NEPPLE, MD's prescribing is 71% brand-name and 29% generic drugs by claim count, with $42K 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 EARL NEPPLE, MD prescribe most often?
Based on 2023 Medicare Part D data, EARL NEPPLE, MD's most frequently prescribed drugs include Latanoprost, Lumigan, Combigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does EARL NEPPLE, MD accept Medicare?
EARL NEPPLE, MD appears in CMS Medicare data with 214 Part D claims and 35 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify EARL NEPPLE, MD's credentials?
EARL NEPPLE, MD's NPI is 1942286190 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