2026 NPPES data Adult Health Nurse Practitioner NPI 1477647584 APNP
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SHARON BARNHART, APNP

Adult Health Nurse Practitioner 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
3K
Medicare Part D claims · 408 beneficiaries · Adult Health Nurse Practitioner avg: 1K

What the federal data shows

SHARON BARNHART, APNP filed 2,829 Medicare Part D claims in 2023 as a Adult Health Nurse Practitioner in LA CROSSE, Wisconsin.

3K
Part D claims, 2023

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.

SHARON BARNHART, APNP's Medicare Part D volume vs every U.S. prescriber

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

2,829 Top 12% higher than 88% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 SHARON BARNHART, APNP?

Quality data not reported

NPI registry status

Active

Issued 10/03/2006

NPI 1477647584

Primary specialty

Adult Health Nurse Practitioner

Mid-sized

29,492 US NPIs in this specialty

Medicare Part D claims

2,829 136% vs specialty avg

2023 prescription claims

Specialty avg: 1,201

Specialty distribution in Wisconsin

How Adult Health Nurse Practitioner compares to other specialties among Wisconsin providers

Wisconsin providers

Adult Health Nurse Practitioner share within Wisconsin

1. Adult Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adult Health Nurse Practitioner share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Adult Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Adult Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Adult Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Adult Health Nurse Practitioner) — 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).

SHARON BARNHART, APNP is a Adult Health Nurse Practitioner provider practicing in LA CROSSE, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: APNP. NPI: 1477647584. 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.

SHARON BARNHART, APNP appears in the CMS NPPES registry as a Adult Health Nurse Practitioner provider holding APNP credentials at 1836 SOUTH AVE, LA CROSSE, WI, 54601, with a listed phone of (608) 782-7300. NPI 1477647584 was issued on 10/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARNHART 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 2,829 prescription claims written by this provider, covering 408 Medicare beneficiaries and totaling roughly $1.7 million in drug spend, with an opioid prescribing rate of 3.2%. 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.

Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,492 enrolled providers across 55 states and an average of 1,201 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 1477647584
Specialty Adult Health Nurse Practitioner
Credentials APNP
Gender Female
NPI Issued 10/03/2006

Hospital and facility affiliations

Facilities where SHARON BARNHART, APNP 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
ONALASKA, 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).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

2,829
Total Claims
$1.7M
Total Drug Cost
408
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,683
Total Day Supply
165,172
Generic Drug Cost
$89K
Opioid Claims
91 (3.2% rate)
Antibiotic Claims
13

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.41
Gender Split
67% female / 33% male
Age Distribution
<65: 46, 65-74: 193, 75-84: 134, 85+: 35

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Methotrexate
Methotrexate Sodium
653
Hydroxychloroquine Sulfate
591
Prednisone
349
Leflunomide
126
Sulfasalazine
102
Allopurinol
99
Diclofenac Sodium
72
Humira(Cf) Pen
Adalimumab
70
Colchicine
68
Gabapentin
65

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

Adult Health Nurse Practitioner Overview

How SHARON BARNHART, APNP fits within the Adult Health Nurse Practitioner landscape nationally.

29,492
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,201
Avg Claims per Provider

SHARON BARNHART, APNP's 2,829 claims are above the specialty average of 1,201.

Nearby Adult Health Nurse Practitioner Providers in Wisconsin

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

Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SHARON BARNHART, APNP's specialty?
SHARON BARNHART, APNP specializes in Adult Health Nurse Practitioner and practices in LA CROSSE, Wisconsin. Credentials: APNP.
How much does SHARON BARNHART, APNP prescribe under Medicare Part D?
In 2023, SHARON BARNHART, APNP wrote 2,829 Medicare Part D claims totaling $1.7M in drug costs for 408 beneficiaries.
Where is SHARON BARNHART, APNP located?
SHARON BARNHART, APNP is located at 1836 SOUTH AVE, LA CROSSE, WI, 54601. Phone: (608) 782-7300.
What is SHARON BARNHART, APNP's NPI number?
SHARON BARNHART, APNP's National Provider Identifier (NPI) is 1477647584, issued on 10/03/2006.
Does SHARON BARNHART, APNP prescribe opioids?
Yes, SHARON BARNHART, APNP had 91 opioid claims in 2023 with an opioid prescribing rate of 3.2%.
How many Adult Health Nurse Practitioner providers are there in the US?
There are 29,492 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,201 Medicare Part D claims per year.
What drugs does SHARON BARNHART, APNP prescribe most often?
Based on 2023 Medicare Part D data, SHARON BARNHART, APNP's most frequently prescribed drugs include Methotrexate, Hydroxychloroquine Sulfate, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHARON BARNHART, APNP accept Medicare?
SHARON BARNHART, APNP appears in CMS Medicare data with 2,829 Part D claims and 408 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHARON BARNHART, APNP's credentials?
SHARON BARNHART, APNP's NPI is 1477647584 with credentials APNP. 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