Leah Toppel Nelson, PA

  • Brookfield, WI
  • Dermatologist
NPI1912239658PAC ID2860768165
Medicare services, 2024
434
Medicare patients, 2024
172
Part D claims, 2024
406
MIPS score, 2024
91
Affiliated sites
1
Practice address
13800 W North Ave, Brookfield, WI 53005
Practice phone
Call (262) 754-4488
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Affiliated Dermatologists SC

Brookfield, Wisconsin

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Leah Toppel Nelson is a dermatologist in Brookfield, Wisconsin

Leah Nelson practices at Affiliated Dermatologists SC in Brookfield, Wisconsin.

Leah Nelson's NPI, 1912239658, was assigned on February 5, 2010. Leah Nelson holds Wisconsin license 4183.

NPI and contact details
Medicare PAC ID
2860768165
NPI enumeration date
February 5, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(262) 754-4488
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
43
Medical school graduation
2009

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Leah Toppel Nelson practices at Affiliated Dermatologists SC in Brookfield, Wisconsin

Leah Nelson's primary practice is Affiliated Dermatologists SC, at 13800 W North Ave, Brookfield, WI 53005 in Waukesha County. The practice phone is (262) 754-4488.

  • Affiliated Dermatologists SC
    13800 W North Ave, Brookfield, WI 53005 · Waukesha CountyPhone(262) 754-4488

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Leah Toppel Nelson is affiliated with 2 sites of care and 1 medical group

Leah Nelson's primary practice is Affiliated Dermatologists SC in Brookfield, Wisconsin. The medical group on file is Affiliated Dermatologists. Dmand AI also links Leah Nelson to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Leah Nelson

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Leah Toppel Nelson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Leah Nelson practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Affiliated Dermatologists SCAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Leah Toppel Nelson is one of 436 dermatologists in Wisconsin

Dermatology is Leah Nelson's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dmand AI has Leah Nelson's licenses on file in 2 states: Wisconsin and Illinois.

Specialties and state licenses

  • Dermatology, WisconsinPrimaryLicense 4183 · taxonomy 207N00000X
  • Medical physician assistant, IllinoisLicense 085003533 · taxonomy 363AM0700X

Dermatologists near Leah Nelson

Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Leah Toppel Nelson billed Medicare for 434 services in 2024

CMS data shows 434 Medicare services from Leah Nelson across 7 procedure codes in 2024, for 172 Medicare patients. Medicare paid $17,132 for them. Every service was in an office.

Medicare services, 2024434
Medicare patients172
Paid by Medicare$17,132
Procedure codes7

Leah Nelson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 2492024: 2452%
Office and hospital visits
2023: 2052024: 1898%

Leah Nelson compared with the Wisconsin median for dermatologists, 2024

  • Leah Nelson
  • Wisconsin median
Medicare services
434vs 1,89377% below
Medicare patients
172vs 51867% below
Part D claims
324vs 51837% below

Medians across 439 dermatologists in Wisconsin with Dmand AI profiles that report each measure.

Leah Nelson's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Leah Nelson

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Leah Toppel Nelson treated 172 Medicare patients in 2024, average age 75

CMS counts 172 Medicare patients who saw Leah Nelson in 2024. The largest group is 65 to 74, with 82 patients. 69% of them have high cholesterol, and 60% have high blood pressure. Their average risk score is 0.91, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Leah Nelson's median patient age at 70, with 74% women.

Medicare patients, 2024172
Average age75
Average risk score0.91

Leah Nelson's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Leah Nelson's Medicare patients by sex, 2024

  • Women13981%
  • Men3319%

Chronic conditions among Leah Nelson's Medicare patients, 2024

  1. High cholesterol69%
  2. High blood pressure60%
  3. Arthritis48%
  4. Anxiety22%
  5. Osteoporosis19%
  6. Atrial fibrillation17%
  7. Chronic kidney disease17%
  8. Ischemic heart disease16%

Share of Medicare patients with each condition. A patient can have several.

Leah Nelson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women74%
  • Men26%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Leah Toppel Nelson wrote 406 Medicare Part D claims in 2024

In 2024, Leah Nelson wrote 406 Medicare Part D claims for 192 patients. 94% of them were for generic drugs. CMS names the drug for 324 of them, across 11 drugs with 11 or more claims each, at $7,311 in total drug cost. In 2023, CMS named 311 claims across 10 drugs.

Part D claims, 2024406
Drugs named by CMS11
Total drug cost$7,311
Part D patients192

Leah Nelson's Part D claims by kind of drug, 2024

  • Generic380 claims94%
  • Brand-name26 claims6%

Leah Nelson's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Leah Nelson's Part D claims, 2024

  • Antibiotics6%26 of 406 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3112024: 3244%

Drugs named by CMS: 11 in 2024, 10 in 2023.

See all prescribing by Leah Nelson

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Leah Toppel Nelson scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Leah Nelson for performance year 2024, reported as part of a group. Leah Nelson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Leah Nelson's MIPS scores, performance year 2024

  • 91of 100Final score
  • 90.6of 100Quality
  • 40of 100Improvement Activities
  • 83of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Sources for Leah Toppel Nelson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Leah Toppel Nelson

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Leah Toppel Nelson's NPI number?

Leah Toppel Nelson's NPI number is 1912239658. It was assigned on February 5, 2010, and it is active in the NPI Registry.

What does Leah Toppel Nelson specialize in?

Leah Toppel Nelson is a dermatologist in Brookfield, Wisconsin. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).

Where does Leah Toppel Nelson practice?

Leah Nelson practices at 13800 W North Ave, Brookfield, WI 53005. Leah Nelson's primary practice is Affiliated Dermatologists SC in Brookfield, Wisconsin. Dmand AI also links Leah Nelson to 1 group practice or clinic.

What is Leah Toppel Nelson's office phone number?

The practice phone on file for Leah Nelson is (262) 754-4488.

What is Leah Toppel Nelson's medical license number?

Leah Nelson holds Wisconsin license 4183, one of the licenses on file in 2 states.

Which states has Leah Toppel Nelson been licensed in?

Dmand AI has state licenses on file for Leah Nelson in Wisconsin and Illinois.

What medical group is Leah Toppel Nelson part of?

Leah Nelson is linked to Affiliated Dermatologists.

Does Leah Toppel Nelson accept Medicare?

Yes. CMS data shows Leah Nelson billed Medicare for 434 services in 2024, and Leah Nelson accepts Medicare assignment.

What is Leah Toppel Nelson's MIPS score?

Leah Nelson's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

How many Medicare patients does Leah Toppel Nelson see?

CMS counts 172 Medicare patients who saw Leah Nelson in 2024, with an average age of 75.

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What services does Leah Toppel Nelson bill to Medicare?

In 2024, Leah Nelson's most billed Medicare services were office visit, established patient (99213), surgery: skin and soft tissue (17003) and surgery: skin and soft tissue (11102).

What drugs does Leah Toppel Nelson prescribe most?

In 2024 Medicare Part D data, Leah Nelson's most prescribed drugs by claims were Triamcinolone Acetonide, Hydrocortisone and Ketoconazole.

How long has Leah Toppel Nelson been practicing?

Leah Nelson graduated from medical school in 2009, 17 years ago.

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