NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1891796678 APNP
Verify on CMS → Linda Ahrens, APNP
Registered Nurse in Ripon, 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 177,204 in Registered Nurse, 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 · 309 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
86%
generic claims · 13% 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
Linda Ahrens, APNP filed 3,405 Medicare Part D claims in 2023 as a Registered Nurse in Ripon, Wisconsin, prescribing 86% generic.
- 3K
- Part D claims, 2023
- 86%
- 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.
Linda Ahrens, APNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,405 Top 10% higher than 90% 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 Linda Ahrens, APNP?
Quality data not reportedPrimary specialty
Registered Nurse
Medicare Part D claims
3,405 240% vs specialty avg
Specialty distribution in Wisconsin
How Registered Nurse 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 Registered Nurse. 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).
Linda Ahrens, APNP appears in the CMS NPPES registry as a Registered Nurse provider holding APNP credentials at 1080 W FOND DU LAC ST, Ripon, WI, 54971, with a listed phone of (920) 748-7000. NPI 1891796678 was issued on 08/03/2005.
Medicare Part D records for calendar year 2023 show 3,405 prescription claims written by this provider, covering 309 Medicare beneficiaries and totaling roughly $265K in drug spend, split 13% brand-name and 86% generic by claim count, with an opioid prescribing rate of 2.8%.
Registered Nurse is a high-volume specialty nationwide, with 177,204 enrolled providers across 56 states and an average of 1,000 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 | 1891796678 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | APNP |
| Gender | Female |
| NPI Issued | 08/03/2005 |
Brand vs generic prescribing mix · Typical
Linda Ahrens, APNP - brand share 13.0%
Registered Nurse average
13% brand-name claims vs 86% generic, on 3,405 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.
3,405
Total Claims
$265K
Total Drug Cost
309
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,424
- Total Day Supply
- 216,356
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $203K
- Generic Drug Cost
- $60K
- Opioid Claims
- 95 (2.8% rate)
- Antibiotic Claims
- 32
Patient Demographics
- Average Patient Age
- 68.9 years
- Avg HCC Risk Score
- 1.20
- Gender Split
- 71% female / 29% male
- Age Distribution
- <65: 64, 65-74: 155, 75-84: 67, 85+: 23
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Linda Ahrens, APNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
259 claims
- Levothyroxine Sodium
Levothyroxine Sodium
200 claims
- Amlodipine Besylate
Amlodipine Besylate
187 claims
- Omeprazole
Omeprazole
163 claims
- Metoprolol Succinate
Metoprolol Succinate
137 claims
- Lisinopril
Lisinopril
129 claims
- Losartan Potassium
Losartan Potassium
123 claims
- Simvastatin 73
Simvastatin
73 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 259 |
| Levothyroxine Sodium | 200 |
| Amlodipine Besylate | 187 |
| Omeprazole | 163 |
| Metoprolol Succinate | 137 |
| Lisinopril | 129 |
| Losartan Potassium | 123 |
| Simvastatin | 73 |
| Gabapentin | 63 |
| Pantoprazole Sodium | 63 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Linda Ahrens, APNP fits within the Registered Nurse landscape nationally.
177,204
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider
Linda Ahrens, APNP's 3,405 claims are above the specialty average of 1,000.
Nearby Registered Nurse Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Ahrens.
Dr. Julie Abbott
RN, ADN
Arkdale, WI
Kathleen Abel
Madison, WI
Rhoda Abelmann
Franklin, WI
Dr. Jessica Acevedo
RN
Wauwatosa, WI
Dr. Kate Achman
DNP, RN, ACGNS-BC
Tomah, WI
Compare Registered Nurse 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 Registered Nurse 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Wisconsin
Frequently Asked Questions
What is Linda Ahrens, APNP's specialty? ▼
Linda Ahrens, APNP specializes in Registered Nurse and practices in Ripon, Wisconsin. Credentials: APNP.
How much does Linda Ahrens, APNP prescribe under Medicare Part D? ▼
In 2023, Linda Ahrens, APNP wrote 3,405 Medicare Part D claims totaling $265K in drug costs for 309 beneficiaries.
Where is Linda Ahrens, APNP located? ▼
Linda Ahrens, APNP is located at 1080 W FOND DU LAC ST, Ripon, WI, 54971. Phone: (920) 748-7000.
What is Linda Ahrens, APNP's NPI number? ▼
Linda Ahrens, APNP's National Provider Identifier (NPI) is 1891796678, issued on 08/03/2005.
Does Linda Ahrens, APNP prescribe more brand-name or generic drugs? ▼
Linda Ahrens, APNP's prescribing is 13% brand-name and 86% generic drugs by claim count, with $203K in brand drug costs.
Does Linda Ahrens, APNP prescribe opioids? ▼
Yes, Linda Ahrens, APNP had 95 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
How many Registered Nurse providers are there in the US? ▼
There are 177,204 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does Linda Ahrens, APNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Linda Ahrens, APNP's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Linda Ahrens, APNP accept Medicare? ▼
Linda Ahrens, APNP appears in CMS Medicare data with 3,405 Part D claims and 309 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Linda Ahrens, APNP's credentials? ▼
Linda Ahrens, APNP's NPI is 1891796678 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.