NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1477647584 APNP
Verify on CMS → Sharon Barnhart, APNP
Adult Health Nurse Practitioner in La Crosse, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 29,519 in Adult Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 408 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
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
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 reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
2,829 136% vs specialty avg
Specialty distribution in Wisconsin
How Adult Health Nurse Practitioner compares to other specialties among Wisconsin providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Adult Health Nurse Practitioner. Verify directly:
How MIPS and board certification work
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 appears in the CMS NPPES registry as an 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.
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%.
Adult Health Nurse Practitioner is a mid-sized specialty nationwide, with 29,519 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
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.
What Sharon Barnhart, APNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Methotrexate
Methotrexate
653 claims
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
591 claims
- Prednisone
Prednisone
349 claims
- Leflunomide 126
Leflunomide
126 claims
- Sulfasalazine 102
Sulfasalazine
102 claims
- Allopurinol 99
Allopurinol
99 claims
- Diclofenac Sodium 72
Diclofenac Sodium
72 claims
- Humira(Cf) Pen 70
Humira(Cf) Pen
70 claims
| 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.
29,519
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.
Dr. Tammy Albelo
APNP
Brookfield, WI
Dr. Michelle Alfred
NP-C
Milwaukee, WI
Dr. Jennifer Altmann
APNP
Madison, WI
Dr. Charlene Anderson
APNP
Eau Claire, WI
Dr. Lauren Anderson
RN, MSN, APNP
Milwaukee, WI
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Adult Health Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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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 29,519 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.