Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Hematology/Oncology

Ariel A. Nelson, MD

Works at hospitals in Columbus, WI · Milwaukee, WI · Baraboo, WI … · Wisconsin

Summary

Ariel A. Nelson, MD (Hematology/Oncology) is listed by Medicare at 5 hospitals in Columbus, WI, Milwaukee, WI and Baraboo, WI and other places. NPI 1083956148. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ariel A. Nelson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
13Years since medical school (graduated 2013)
State University Of New York At Buffalo School Of MedicineMedical school
FemaleGender (as listed)
The Medical College of Wisconsin IncGroup practice (+1 more)

Quick answers

Which hospitals does Ariel A. Nelson work at?
Medicare's official clinician data lists Ariel A. Nelson at 5 hospitals: Columbus Community Hospital, Froedtert Memorial Lutheran Hospital, SSM Health St Clare Hospital - Baraboo, SSM Health St Mary's Hospital - Madison and Stoughton Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ariel A. Nelson see patients?
Medicare's clinician data lists 3 practice locations, including Madison, WI and Milwaukee, WI. Call before your visit to confirm the address.
What is Ariel A. Nelson's specialty?
Medicare lists Hematology/Oncology as the primary specialty.
Does Ariel A. Nelson accept Medicare assignment?
Yes. Medicare's clinician data says Ariel A. Nelson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Ariel A. Nelson offer telehealth?
Medicare's clinician data says Ariel A. Nelson offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Ariel A. Nelson?
(608) 252-8000, as listed in official Medicare / NPI Registry data.
What is Ariel A. Nelson's NPI number?
1083956148. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ariel A. Nelson works

Medicare's Facility Affiliation Data lists Ariel A. Nelson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Ariel A. Nelson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ariel A. Nelson as a member of these groups (CMS data updated 2026-10-02).

  • The Medical College of Wisconsin Inc2,115 clinicians in the group
  • Dean Health Systems Inc1,159 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in Wisconsin →

Other hematologist-oncologists in Madison

Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.

All hematologist-oncologists in Madison →

Clinician information

CredentialMD
Medical schoolState University Of New York At Buffalo School Of Medicine
Graduation year2013
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1083956148
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians