NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1023052073 MD
Verify on CMS → Kirsten Larson, MD
Emergency Medicine Physician in Appleton, 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 64,463 in Emergency Medicine Physician, 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
385
Medicare Part D claims · 308 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
91%
generic claims · 6% 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
Kirsten Larson, MD filed 385 Medicare Part D claims in 2023 as a Emergency Medicine Physician in Appleton, Wisconsin, prescribing 91% generic.
- 385
- Part D claims, 2023
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Kirsten Larson, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
385 Top 43% higher than 57% 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
✓
Board certification likely (heuristic, not verified)
Kirsten Larson, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Kirsten Larson, MD?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
385 9% vs specialty avg
Specialty distribution in Wisconsin
How Emergency Medicine Physician 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 Emergency Medicine Physician. 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).
Kirsten Larson, MD appears in the CMS NPPES registry as an Emergency Medicine Physician provider holding MD credentials at 3329 N RICHMOND STREET, Appleton, WI, 54911, with a listed phone of (920) 380-2715. NPI 1023052073 was issued on 06/16/2006.
Medicare Part D records for calendar year 2023 show 385 prescription claims written by this provider, covering 308 Medicare beneficiaries and totaling roughly $5K in drug spend, split 6% brand-name and 91% generic by claim count, with an opioid prescribing rate of 3.6%.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,463 enrolled providers across 56 states and an average of 352 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 | 1023052073 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 06/16/2006 |
Hospital and facility affiliations
Facilities where Kirsten Larson, MD 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.
Froedtert Andthe Medical College OF Wisconsin Community Physicians Inc
New Berlin, 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).
Brand vs generic prescribing mix · Generic-heavy
Kirsten Larson, MD - brand share 6.0%
Emergency Medicine Physician average
6% brand-name claims vs 91% generic, on 385 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.
385
Total Claims
$5K
Total Drug Cost
308
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 391
- Total Day Supply
- 3,293
- Brand vs Generic
- 6% brand / 91% generic
- Brand Drug Cost
- $1K
- Generic Drug Cost
- $4K
- Opioid Claims
- 14 (3.6% rate)
- Antibiotic Claims
- 229
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 1.16
- Gender Split
- 70% female / 30% male
- Age Distribution
- <65: 29, 65-74: 164, 75-84: 83, 85+: 32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kirsten Larson, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Doxycycline Hyclate
Doxycycline Hyclate
53 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
50 claims
- Nitrofurantoin Mon…
Nitrofurantoin Mono-Macro
37 claims
- Cefadroxil
Cefadroxil
35 claims
- Prednisone
Prednisone
32 claims
- Cefdinir 13
Cefdinir
13 claims
- Paxlovid (Eua) 12
Paxlovid (Eua)
12 claims
- Sulfamethoxazole-T… 12
Sulfamethoxazole-Trimethoprim
12 claims
| Drug | Claims |
|---|---|
| Doxycycline Hyclate | 53 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 50 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 37 |
| Cefadroxil | 35 |
| Prednisone | 32 |
| Cefdinir | 13 |
| Paxlovid (Eua) Nirmatrelvir/Ritonavir | 12 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 12 |
| Valacyclovir Valacyclovir Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Kirsten Larson, MD fits within the Emergency Medicine Physician landscape nationally.
64,463
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Kirsten Larson, MD's 385 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Larson.
Dr. Hythem Abad
DO
Portage, WI
Dr. Alan Abdulla
D.O.
Waukesha, WI
Dr. Krystyna Abdulla
DO
New Berlin, WI
Dr. Abdulmoniem Abdulmoniem
M.D.
Elkhorn, WI
Dr. Justine Abel
DO
Eau Claire, WI
Compare Emergency Medicine Physician 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 Emergency Medicine Physician 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 Kirsten Larson, MD's specialty? ▼
Kirsten Larson, MD specializes in Emergency Medicine Physician and practices in Appleton, Wisconsin. Credentials: MD.
How much does Kirsten Larson, MD prescribe under Medicare Part D? ▼
In 2023, Kirsten Larson, MD wrote 385 Medicare Part D claims totaling $5K in drug costs for 308 beneficiaries.
Where is Kirsten Larson, MD located? ▼
Kirsten Larson, MD is located at 3329 N RICHMOND STREET, Appleton, WI, 54911. Phone: (920) 380-2715.
What is Kirsten Larson, MD's NPI number? ▼
Kirsten Larson, MD's National Provider Identifier (NPI) is 1023052073, issued on 06/16/2006.
Does Kirsten Larson, MD prescribe more brand-name or generic drugs? ▼
Kirsten Larson, MD's prescribing is 6% brand-name and 91% generic drugs by claim count, with $1K in brand drug costs.
Does Kirsten Larson, MD prescribe opioids? ▼
Yes, Kirsten Larson, MD had 14 opioid claims in 2023 with an opioid prescribing rate of 3.6%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,463 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Kirsten Larson, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Kirsten Larson, MD's most frequently prescribed drugs include Doxycycline Hyclate, Amoxicillin-Clavulanate Potass, Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kirsten Larson, MD accept Medicare? ▼
Kirsten Larson, MD appears in CMS Medicare data with 385 Part D claims and 308 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kirsten Larson, MD's credentials? ▼
Kirsten Larson, MD's NPI is 1023052073 with credentials MD. 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.