2026 NPPES data Optometrist NPI 1033473343 O.D.
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ASHLEY HERDE, O.D.

Optometrist in LA CROSSE, 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
144
Medicare Part D claims · 63 beneficiaries · Optometrist avg: 257
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ASHLEY HERDE, O.D. filed 144 Medicare Part D claims in 2023 as a Optometrist in LA CROSSE, Wisconsin, prescribing 67% generic.

144
Part D claims, 2023
67%
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.

ASHLEY HERDE, O.D.'s Medicare Part D volume vs every U.S. prescriber

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

144 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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

What does the federal data show about ASHLEY HERDE, O.D.?

Quality data not reported

NPI registry status

Active

Issued 07/02/2012

NPI 1033473343

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

144 44% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Wisconsin

How Optometrist compares to other specialties among Wisconsin providers

Wisconsin providers

Optometrist share within Wisconsin

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Wisconsin

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Optometrist) — 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).

ASHLEY HERDE, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 1836 SOUTH AVE, LA CROSSE, WI, 54601, with a listed phone of (608) 782-7300. NPI 1033473343 was issued on 07/02/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HERDE 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 144 prescription claims written by this provider, covering 63 Medicare beneficiaries and totaling roughly $21K in drug spend, split 33% brand-name and 67% 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.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 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

1836 SOUTH AVE
LA CROSSE, WI 54601

Provider Details

NPI 1033473343
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 07/02/2012

Hospital and facility affiliations

Facilities where ASHLEY HERDE, O.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.

GUNDERSEN CLINIC LTD
DECORAH, IA
GUNDERSEN LUTHERAN MEDICAL CENTER INC
WINONA, MN

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 · Above average

ASHLEY HERDE, O.D. — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 144 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.

144
Total Claims
$21K
Total Drug Cost
63
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
253
Total Day Supply
7,029
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$16K
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
1.20
Gender Split
67% female / 33% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
77
Timolol Maleate
15

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

Optometrist Overview

How ASHLEY HERDE, O.D. fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

ASHLEY HERDE, O.D.'s 144 claims are below the specialty average of 257.

Nearby Optometrist Providers in Wisconsin

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

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is ASHLEY HERDE, O.D.'s specialty?
ASHLEY HERDE, O.D. specializes in Optometrist and practices in LA CROSSE, Wisconsin. Credentials: O.D..
How much does ASHLEY HERDE, O.D. prescribe under Medicare Part D?
In 2023, ASHLEY HERDE, O.D. wrote 144 Medicare Part D claims totaling $21K in drug costs for 63 beneficiaries.
Where is ASHLEY HERDE, O.D. located?
ASHLEY HERDE, O.D. is located at 1836 SOUTH AVE, LA CROSSE, WI, 54601. Phone: (608) 782-7300.
What is ASHLEY HERDE, O.D.'s NPI number?
ASHLEY HERDE, O.D.'s National Provider Identifier (NPI) is 1033473343, issued on 07/02/2012.
Does ASHLEY HERDE, O.D. prescribe more brand-name or generic drugs?
ASHLEY HERDE, O.D.'s prescribing is 33% brand-name and 67% generic drugs by claim count, with $16K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does ASHLEY HERDE, O.D. prescribe most often?
Based on 2023 Medicare Part D data, ASHLEY HERDE, O.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ASHLEY HERDE, O.D. accept Medicare?
ASHLEY HERDE, O.D. appears in CMS Medicare data with 144 Part D claims and 63 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ASHLEY HERDE, O.D.'s credentials?
ASHLEY HERDE, O.D.'s NPI is 1033473343 with credentials O.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.
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