NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1639630478 APRN/CNP
Verify on CMS → Amy Larson, APRN/CNP
Family Nurse Practitioner in Duluth, 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 210,832 in Family 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
635
Medicare Part D claims · 271 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79/100
▼ 4 pts below national avg 83.1 · Above neutral
Industry payments
$124
5 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Amy Larson, APRN/CNP reported a CMS MIPS final score of 79/100 - below the 83.1 national average - and filed 635 Medicare Part D claims in 2023.
- 79/100
- MIPS score · -4 vs avg
- 635
- Part D claims, 2023
- 89%
- generic prescribing
- $124
- industry payments (Sunshine Act)
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.
Amy Larson, APRN/CNP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 30th percentile higher than 30% 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 Amy Larson, APRN/CNP sits
This provider among family nurse practitioner peers
Across the 27,154 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Amy Larson, APRN/CNP writes more Part D claims than 59% of them and scores higher on MIPS quality than 27% - placing this provider in the high-volume, lower-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 family nurse practitioner peer from a representative sample of 60; the gold marker is Amy Larson, APRN/CNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Amy Larson, APRN/CNP?
Near national averagePrimary specialty
Family Nurse Practitioner
Medicare Part D claims
635 48% vs specialty avg
MIPS final score
79/100 4.1 pts vs avg
Specialty distribution in Minnesota
How Family Nurse Practitioner compares to other specialties among Minnesota providers
Medicare quality performance, MIPS
Amy Larson, APRN/CNP's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 79/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Family Nurse Practitioner) - 79/100 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).
Amy Larson, APRN/CNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding APRN/CNP credentials at 1414 WOODLAND AVE, Duluth, MN, 55803, with a listed phone of (651) 245-2818. NPI 1639630478 was issued on 03/26/2019.
Medicare Part D records for calendar year 2023 show 635 prescription claims written by this provider, covering 271 Medicare beneficiaries and totaling roughly $692K in drug spend, split 11% brand-name and 89% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79/100 for the 2023 performance year (Quality 90.4, Cost 42.9), compared with the national average of 83.1.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 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 | 1639630478 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | APRN/CNP |
| Gender | Female |
| NPI Issued | 03/26/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.0241
Final Score
Avg: 83.1
90.3658
Quality
42.926
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Amy Larson, APRN/CNP 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.
Twin Ports Dermatology Inc
Duluth, MN
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Amy Larson, APRN/CNP. Source: openpaymentsdata.cms.gov.
Total received
$124
Largest payer
Galderma Laboratories, L.P.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Amy Larson, APRN/CNP - brand share 11.0%
Family Nurse Practitioner average
11% brand-name claims vs 89% generic, on 635 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.
635
Total Claims
$692K
Total Drug Cost
271
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 764
- Total Day Supply
- 19,163
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $671K
- Generic Drug Cost
- $21K
- Antibiotic Claims
- 65
Patient Demographics
- Average Patient Age
- 73.8 years
- Avg HCC Risk Score
- 0.91
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 17, 65-74: 131, 75-84: 90, 85+: 33
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Amy Larson, APRN/CNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Triamcinolone Acet…
Triamcinolone Acetonide
114 claims
- Ketoconazole
Ketoconazole
55 claims
- Doxycycline Monohy…
Doxycycline Monohydrate
50 claims
- Mupirocin 41
Mupirocin
41 claims
- Fluocinonide 37
Fluocinonide
37 claims
- Clindamycin Phosph… 24
Clindamycin Phosphate
24 claims
- Skyrizi Pen 23
Skyrizi Pen
23 claims
- Clobetasol Propion… 22
Clobetasol Propionate
22 claims
| Drug | Claims |
|---|---|
| Triamcinolone Acetonide | 114 |
| Ketoconazole | 55 |
| Doxycycline Monohydrate | 50 |
| Mupirocin | 41 |
| Fluocinonide | 37 |
| Clindamycin Phosphate | 24 |
| Skyrizi Pen Risankizumab-Rzaa | 23 |
| Clobetasol Propionate | 22 |
| Hydrocortisone | 22 |
| Metronidazole | 21 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Amy Larson, APRN/CNP fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Amy Larson, APRN/CNP's 635 claims are below the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in Minnesota
Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as Larson.
Dr. Christine Aas-Larson
RN, CNP
Duluth, MN
Dr. Joeanna Aasen
APRN, CNP, DNP
Minneapolis, MN
Rodney Abary
Minneapolis, MN
Dr. Hamdi Abdi
ARNP
Minneapolis, MN
Nimo Abdi
Eden Prairie, MN
Compare Family 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 Minnesota medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family 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 Amy Larson, APRN/CNP's specialty? ▼
Amy Larson, APRN/CNP specializes in Family Nurse Practitioner and practices in Duluth, Minnesota. Credentials: APRN/CNP.
How much does Amy Larson, APRN/CNP prescribe under Medicare Part D? ▼
In 2023, Amy Larson, APRN/CNP wrote 635 Medicare Part D claims totaling $692K in drug costs for 271 beneficiaries.
What is Amy Larson, APRN/CNP's Medicare quality score? ▼
Amy Larson, APRN/CNP has a CMS MIPS Final Score of 79/100 (Quality: 90.4, Cost: 42.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Amy Larson, APRN/CNP located? ▼
Amy Larson, APRN/CNP is located at 1414 WOODLAND AVE, Duluth, MN, 55803. Phone: (651) 245-2818.
What is Amy Larson, APRN/CNP's NPI number? ▼
Amy Larson, APRN/CNP's National Provider Identifier (NPI) is 1639630478, issued on 03/26/2019.
Does Amy Larson, APRN/CNP prescribe more brand-name or generic drugs? ▼
Amy Larson, APRN/CNP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $671K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Amy Larson, APRN/CNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Amy Larson, APRN/CNP's most frequently prescribed drugs include Triamcinolone Acetonide, Ketoconazole, Doxycycline Monohydrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Amy Larson, APRN/CNP accept Medicare? ▼
Amy Larson, APRN/CNP appears in CMS Medicare data with 635 Part D claims and 271 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Amy Larson, APRN/CNP's credentials? ▼
Amy Larson, APRN/CNP's NPI is 1639630478 with credentials APRN/CNP. 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
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.