NPI registry status
Active
2026 NPPES data Clinical Nurse Specialist NPI 1427019538 CNS
Verify on CMS → Kerstin Lappen, CNS
Clinical Nurse Specialist in Minneapolis, Minnesota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,715 in Clinical Nurse Specialist, 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
569
Medicare Part D claims · 72 beneficiaries · Clinical Nurse Specialist avg: 953
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.5/100
▲ 0 pts above national avg 83.1 · Above neutral
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
Kerstin Lappen, CNS reported a CMS MIPS final score of 83.5/100 - above the 83.1 national average - and filed 569 Medicare Part D claims in 2023.
- 83.5/100
- MIPS score · +0 vs avg
- 569
- Part D claims, 2023
- 91%
- 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.
Kerstin Lappen, CNS's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
84 42nd percentile higher than 42% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Kerstin Lappen, CNS sits
This provider among clinical nurse specialist peers
Across the 134 clinical nurse specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Kerstin Lappen, CNS writes more Part D claims than 67% of them and scores higher on MIPS quality than 51% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one clinical nurse specialist peer from a representative sample of 60; the gold marker is Kerstin Lappen, CNS. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Kerstin Lappen, CNS?
Near national averagePrimary specialty
Clinical Nurse Specialist
Medicare Part D claims
569 40% vs specialty avg
MIPS final score
83.5/100 0.4 pts vs avg
Specialty distribution in Minnesota
How Clinical Nurse Specialist compares to other specialties among Minnesota providers
Medicare quality performance, MIPS
Kerstin Lappen, CNS's 2023 MIPS final score plotted against the Clinical Nurse Specialist national average
- MIPS Final Score
- 83.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Clinical Nurse Specialist) - 83.5/100 vs national avg 83.1
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).
Kerstin Lappen, CNS appears in the CMS NPPES registry as a Clinical Nurse Specialist provider holding CNS credentials at 910 E 26TH ST, Minneapolis, MN, 55404, with a listed phone of (612) 884-6300. NPI 1427019538 was issued on 03/29/2006.
Medicare Part D records for calendar year 2023 show 569 prescription claims written by this provider, covering 72 Medicare beneficiaries and totaling roughly $30K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 39.9%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.5/100 for the 2023 performance year (Quality 81.8, Cost 63.3), compared with the national average of 83.1.
Clinical Nurse Specialist is a narrow specialty nationwide, with 1,715 enrolled providers across 49 states and an average of 953 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 | 1427019538 |
|---|---|
| Specialty | Clinical Nurse Specialist |
| Credentials | CNS |
| Gender | Female |
| NPI Issued | 03/29/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
83.5331
Final Score
Avg: 83.1
81.7967
Quality
63.3136
Cost
100
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Generic-heavy
Kerstin Lappen, CNS - brand share 9.0%
Clinical Nurse Specialist average
9% brand-name claims vs 91% generic, on 569 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.
569
Total Claims
$30K
Total Drug Cost
72
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 627
- Total Day Supply
- 15,689
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $13K
- Generic Drug Cost
- $17K
- Opioid Claims
- 227 (39.9% rate)
Patient Demographics
- Average Patient Age
- 67.4 years
- Avg HCC Risk Score
- 3.32
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 19, 65-74: 42, 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 Kerstin Lappen, CNS prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
76 claims
- Hydromorphone Hcl
Hydromorphone Hcl
38 claims
- Morphine Sulfate Er
Morphine Sulfate Er
34 claims
- Gabapentin
Gabapentin
33 claims
- Methylphenidate Hcl
Methylphenidate Hcl
31 claims
- Mirtazapine 25
Mirtazapine
25 claims
- Methadone Hcl 24
Methadone Hcl
24 claims
- Alprazolam 20
Alprazolam
20 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 76 |
| Hydromorphone Hcl | 38 |
| Morphine Sulfate Er Morphine Sulfate | 34 |
| Gabapentin | 33 |
| Methylphenidate Hcl | 31 |
| Mirtazapine | 25 |
| Methadone Hcl | 24 |
| Alprazolam | 20 |
| Pregabalin | 20 |
| Lorazepam | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Clinical Nurse Specialist Overview
How Kerstin Lappen, CNS fits within the Clinical Nurse Specialist landscape nationally.
1,715
Clinical Nurse Specialist Providers in US
49
States with Clinical Nurse Specialist
953
Avg Claims per Provider
Kerstin Lappen, CNS's 569 claims are below the specialty average of 953.
Nearby Clinical Nurse Specialist Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Lappen.
Dr. Brittany Anderson
DNP, AGCNS-BC, CNS
Minnetonka, MN
Dr. Gay Bartholic
CNS
Arden Hills, MN
Dr. Shelly Bartsch
CNS
St Louis Park, MN
Dr. Jennifer Bauerly
CNS
St Cloud, MN
Elizabeth Bechtum
Rochester, MN
Compare Clinical Nurse Specialist 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 Minnesota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Clinical Nurse Specialist 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Kerstin Lappen, CNS's specialty? ▼
Kerstin Lappen, CNS specializes in Clinical Nurse Specialist and practices in Minneapolis, Minnesota. Credentials: CNS.
How much does Kerstin Lappen, CNS prescribe under Medicare Part D? ▼
In 2023, Kerstin Lappen, CNS wrote 569 Medicare Part D claims totaling $30K in drug costs for 72 beneficiaries.
What is Kerstin Lappen, CNS's Medicare quality score? ▼
Kerstin Lappen, CNS has a CMS MIPS Final Score of 83.5/100 (Quality: 81.8, Cost: 63.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kerstin Lappen, CNS located? ▼
Kerstin Lappen, CNS is located at 910 E 26TH ST, Minneapolis, MN, 55404. Phone: (612) 884-6300.
What is Kerstin Lappen, CNS's NPI number? ▼
Kerstin Lappen, CNS's National Provider Identifier (NPI) is 1427019538, issued on 03/29/2006.
Does Kerstin Lappen, CNS prescribe more brand-name or generic drugs? ▼
Kerstin Lappen, CNS's prescribing is 9% brand-name and 91% generic drugs by claim count, with $13K in brand drug costs.
Does Kerstin Lappen, CNS prescribe opioids? ▼
Yes, Kerstin Lappen, CNS had 227 opioid claims in 2023 with an opioid prescribing rate of 39.9%.
How many Clinical Nurse Specialist providers are there in the US? ▼
There are 1,715 Clinical Nurse Specialist providers across 49 states in the US. The average Clinical Nurse Specialist provider writes 953 Medicare Part D claims per year.
What drugs does Kerstin Lappen, CNS prescribe most often? ▼
Based on 2023 Medicare Part D data, Kerstin Lappen, CNS's most frequently prescribed drugs include Oxycodone Hcl, Hydromorphone Hcl, Morphine Sulfate Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kerstin Lappen, CNS accept Medicare? ▼
Kerstin Lappen, CNS appears in CMS Medicare data with 569 Part D claims and 72 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kerstin Lappen, CNS's credentials? ▼
Kerstin Lappen, CNS's NPI is 1427019538 with credentials CNS. 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.