2026 NPPES data Neurology Physician NPI 1447577424 DO
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JESSICA MCILRATH, DO

Neurology Physician in ONALASKA, 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
2K
Medicare Part D claims · 146 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JESSICA MCILRATH, DO is a Neurology Physician ([object Object]) practicing in ONALASKA, Wisconsin with a Medicare Part D prescribing footprint of 2K claims across 146 beneficiaries — 7% brand-name prescribing .

What stands out: JESSICA MCILRATH, DO filed 2,305 Medicare Part D claims in 2023 across ONALASKA, Wisconsin. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JESSICA MCILRATH, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JESSICA MCILRATH, DO at a glance

Quality data not reported

NPI registry status

Active

Issued 04/29/2010

NPI 1447577424

Primary specialty

Neurology Physician

Mid-sized

19,866 US NPIs in this specialty

Medicare Part D claims

2,305 76% vs specialty avg

2023 prescription claims

Specialty avg: 1,309

Specialty distribution in Wisconsin

How Neurology Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Neurology Physician share within Wisconsin

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

Specialty board-certification context

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

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

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

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

JESSICA MCILRATH, DO is a Neurology Physician provider practicing in ONALASKA, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1447577424. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JESSICA MCILRATH, DO appears in the CMS NPPES registry as a Neurology Physician provider holding DO credentials at 3111 GUNDERSEN DR, ONALASKA, WI, 54650, with a listed phone of (608) 782-7300. NPI 1447577424 was issued on 04/29/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCILRATH 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 2,305 prescription claims written by this provider, covering 146 Medicare beneficiaries and totaling roughly $385K in drug spend, split 7% brand-name and 93% 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.

Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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

3111 GUNDERSEN DR
ONALASKA, WI 54650

Provider Details

NPI 1447577424
Specialty Neurology Physician
Credentials DO
Gender Female
NPI Issued 04/29/2010

Hospital and facility affiliations

Facilities where JESSICA MCILRATH, DO 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
LA CROSSE, WI
GUNDERSEN LUTHERAN MEDICAL CENTER INC
ONALASKA, 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 · Generic-heavy

JESSICA MCILRATH, DO — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 2,305 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.

2,305
Total Claims
$385K
Total Drug Cost
146
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,877
Total Day Supply
82,140
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$284K
Generic Drug Cost
$101K

Patient Demographics

Average Patient Age
58.8 years
Avg HCC Risk Score
1.21
Gender Split
66% female / 34% male
Age Distribution
<65: 86, 65-74: 44, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Lamotrigine
124
Sertraline Hcl
109
Quetiapine Fumarate
107
Trazodone Hcl
105
Lorazepam
95
Olanzapine
93
Clonazepam
84
Duloxetine Hcl
82
Benztropine Mesylate
79
Buspirone Hcl
78

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

Neurology Physician Overview

How JESSICA MCILRATH, DO fits within the Neurology Physician landscape nationally.

19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider

JESSICA MCILRATH, DO's 2,305 claims are above the specialty average of 1,309.

Nearby Neurology Physician Providers in Wisconsin

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

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

Frequently Asked Questions

What is JESSICA MCILRATH, DO's specialty?
JESSICA MCILRATH, DO specializes in Neurology Physician and practices in ONALASKA, Wisconsin. Credentials: DO.
How much does JESSICA MCILRATH, DO prescribe under Medicare Part D?
In 2023, JESSICA MCILRATH, DO wrote 2,305 Medicare Part D claims totaling $385K in drug costs for 146 beneficiaries.
Where is JESSICA MCILRATH, DO located?
JESSICA MCILRATH, DO is located at 3111 GUNDERSEN DR, ONALASKA, WI, 54650. Phone: (608) 782-7300.
What is JESSICA MCILRATH, DO's NPI number?
JESSICA MCILRATH, DO's National Provider Identifier (NPI) is 1447577424, issued on 04/29/2010.
Does JESSICA MCILRATH, DO prescribe more brand-name or generic drugs?
JESSICA MCILRATH, DO's prescribing is 7% brand-name and 93% generic drugs by claim count, with $284K in brand drug costs.
How many Neurology Physician providers are there in the US?
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does JESSICA MCILRATH, DO prescribe most often?
Based on 2023 Medicare Part D data, JESSICA MCILRATH, DO's most frequently prescribed drugs include Lamotrigine, Sertraline Hcl, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JESSICA MCILRATH, DO accept Medicare?
JESSICA MCILRATH, DO appears in CMS Medicare data with 2,305 Part D claims and 146 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JESSICA MCILRATH, DO's credentials?
JESSICA MCILRATH, DO's NPI is 1447577424 with credentials DO. 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