NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1083640056 APNP
Verify on CMS → Suzanne Kiefer, APNP
Nurse Practitioner in Oshkosh, 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 87,700 in 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
725
Medicare Part D claims · 116 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
57%
generic claims · 43% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Suzanne Kiefer, APNP filed 725 Medicare Part D claims in 2023 as a Nurse Practitioner in Oshkosh, Wisconsin, prescribing 57% generic.
- 725
- Part D claims, 2023
- 57%
- 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.
Suzanne Kiefer, APNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
725 Top 29% higher than 71% 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 Suzanne Kiefer, APNP?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
725 33% vs specialty avg
Specialty distribution in Wisconsin
How 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 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).
Suzanne Kiefer, APNP appears in the CMS NPPES registry as a Nurse Practitioner provider holding APNP credentials at 855 N WESTHAVEN DR, Oshkosh, WI, 54904, with a listed phone of (920) 303-8700. NPI 1083640056 was issued on 06/23/2006.
Medicare Part D records for calendar year 2023 show 725 prescription claims written by this provider, covering 116 Medicare beneficiaries and totaling roughly $187K in drug spend, split 43% brand-name and 57% generic by claim count.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 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 | 1083640056 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | APNP |
| Gender | Female |
| NPI Issued | 06/23/2006 |
Brand vs generic prescribing mix · Above average
Suzanne Kiefer, APNP - brand share 43.0%
Nurse Practitioner average
43% brand-name claims vs 57% generic, on 725 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.
725
Total Claims
$187K
Total Drug Cost
116
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,068
- Total Day Supply
- 30,770
- Brand vs Generic
- 43% brand / 57% generic
- Brand Drug Cost
- $164K
- Generic Drug Cost
- $23K
Patient Demographics
- Average Patient Age
- 68.0 years
- Avg HCC Risk Score
- 1.92
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 30, 65-74: 62, 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.
What Suzanne Kiefer, APNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Montelukast Sodium
Montelukast Sodium
94 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
73 claims
- Armodafinil
Armodafinil
44 claims
- Dextroamphetamine-…
Dextroamphetamine-Amphetamine
40 claims
- Zolpidem Tartrate 34
Zolpidem Tartrate
34 claims
- Breo Ellipta 33
Breo Ellipta
33 claims
- Fluticasone-Salmet… 33
Fluticasone-Salmeterol
33 claims
- Trazodone Hcl 33
Trazodone Hcl
33 claims
| Drug | Claims |
|---|---|
| Montelukast Sodium | 94 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 73 |
| Armodafinil | 44 |
| Dextroamphetamine-Amphetamine Dextroamphetamine/Amphetamine | 40 |
| Zolpidem Tartrate | 34 |
| Breo Ellipta Fluticasone/Vilanterol | 33 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 33 |
| Trazodone Hcl | 33 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 31 |
| Spiriva Handihaler Tiotropium Bromide | 26 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Suzanne Kiefer, APNP fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Suzanne Kiefer, APNP's 725 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Kiefer.
Dr. Caroline Aaberg
APNP
Madison, WI
Dr. Joyce Abbott
APNP
Oshkosh, WI
Dr. Jade Abts
NP
Green Bay, WI
Dr. Christine Ackerman
NP
Menomonee Falls, WI
Dr. Carol Adamczyk
MSN
Wauwatosa, WI
Compare 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 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 Suzanne Kiefer, APNP's specialty? ▼
Suzanne Kiefer, APNP specializes in Nurse Practitioner and practices in Oshkosh, Wisconsin. Credentials: APNP.
How much does Suzanne Kiefer, APNP prescribe under Medicare Part D? ▼
In 2023, Suzanne Kiefer, APNP wrote 725 Medicare Part D claims totaling $187K in drug costs for 116 beneficiaries.
Where is Suzanne Kiefer, APNP located? ▼
Suzanne Kiefer, APNP is located at 855 N WESTHAVEN DR, Oshkosh, WI, 54904. Phone: (920) 303-8700.
What is Suzanne Kiefer, APNP's NPI number? ▼
Suzanne Kiefer, APNP's National Provider Identifier (NPI) is 1083640056, issued on 06/23/2006.
Does Suzanne Kiefer, APNP prescribe more brand-name or generic drugs? ▼
Suzanne Kiefer, APNP's prescribing is 43% brand-name and 57% generic drugs by claim count, with $164K in brand drug costs.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Suzanne Kiefer, APNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Suzanne Kiefer, APNP's most frequently prescribed drugs include Montelukast Sodium, Albuterol Sulfate Hfa, Armodafinil. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Suzanne Kiefer, APNP accept Medicare? ▼
Suzanne Kiefer, APNP appears in CMS Medicare data with 725 Part D claims and 116 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Suzanne Kiefer, APNP's credentials? ▼
Suzanne Kiefer, APNP's NPI is 1083640056 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.