Ariel Ann Nelson, M.D.
Hematology & Oncology Physician · Madison, WI
Ariel Ann Nelson, M.D. is a hematology & oncology physician with a practice address in Madison, Wisconsin, and NPI 1083956148, issued on Mar 26, 2013. Check the license (Wisconsin 63243, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ariel Ann Nelson
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 63243 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1211 Fish Hatchery RD, Madison, WI 53715
- Phone
- (608) 252-8000
- Enumerated
- Mar 26, 2013
- Record last updated
- Feb 19, 2026
- Fax
- (608) 410-2905
- Medicaid ID
- 1083956148 WI
- Medicare enrollment
- Enrolled (PECOS I20190425000230); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 2013
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 295 in Wisconsin → Look up another NPI →
Also registered at 1211 Fish Hatchery RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Caroline Aaberg, APNPNurse Practitioner1881384394
- Michelle Adler-Gronski, PA-CPhysician Assistant1265499487
- Heidi Allen-Bregman, APNPNurse Practitioner1255380424
- Douglas Arnold, M.D.Orthopaedic Surgery Physician1770788267
- Emily Beaman, CNMAdvanced Practice Midwife1285037325
- Bridget Bellissimo, PA-CPhysician Assistant1093435091
Verify Ariel Ann Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 63243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
528 Medicare Part D claims for 101 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 19 claims were for opioids.
Most prescribed
- Abiraterone Acetate75 claims
- Prednisone72 claims
- Dexamethasone47 claims
- Ondansetron Hcl35 claims
- Eliquis26 claims
- Nubeqa25 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,532.67
4 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Dean Health Systems IncMadison, WI
- The Medical College OF Wisconsin IncMilwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ariel Ann Nelson among 295 hematology & oncology physician records in Wisconsin
Ariel Ann Nelson, M.D. is one of 295 hematology & oncology physician records with a practice address in Wisconsin. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 74% of them.
- NPI issued2013 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2013 · median 2004 among the 217 with a school on file
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Wisconsin
There are 295 hematology & oncology physician records in Wisconsin.
All 295 in Wisconsin → Every provider in Madison → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Yamil Arbaje, MDMadison, WI 537151033162904
- Trevor Dennie, MDMadison, WI 537151710030333
- James Engeler, MDMadison, WI 537151649223975
- Michael Frontiera, MDMadison, WI 537151669428017
- Roy Kim, M.D.Madison, WI 537151942316286
- Lisa Lepeak, M.D.Madison, WI 537151053357384
- Thomas McFarland, MDMadison, WI 537151093783250
- Jacqueline Mullvain, MDMadison, WI 537151528387131
Common questions
What is Ariel Ann Nelson, M.D.'s NPI number?
Ariel Ann Nelson, M.D.'s National Provider Identifier (NPI) is 1083956148, issued on Mar 26, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Ariel Ann Nelson, M.D. located?
The NPPES record lists a practice address at 1211 Fish Hatchery RD, Madison, WI, 53715. Phone: (608) 252-8000. Providers update this record themselves, so call before visiting.
How can I verify Ariel Ann Nelson, M.D.'s license?
NPPES lists Wisconsin license number 63243, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ariel Ann Nelson, M.D. prescribe under Medicare Part D?
In 2024, Ariel Ann Nelson, M.D. had 528 Medicare Part D claims for 101 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Ariel Ann Nelson, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.