MS. ARIEL ANN NELSON M.D.
NPI 1083956148
Internal Medicine - Hematology & Oncology in Madison, WI
About Ms. Ariel Ann Nelson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ARIEL ANN NELSON M.D. (NPI 1083956148) is an individual hematology & oncology provider in Madison, Wisconsin, licensed in Wisconsin (63243) and active in the NPI registry since March 2013. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Clare Hospital - Baraboo, and maintains a secondary practice location in Milwaukee.
NPPES Registry Identity
Specialties & Licenses
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Ariel Ann Nelson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm Health St Clare Hospital - Baraboo
Acute Care Hospitals · Baraboo, WISsm Health St Mary's Hospital - Madison
Acute Care Hospitals · Madison, WICommunity Memorial Hospital
Acute Care Hospitals · Menomonee Falls, WIFroedtert Memorial Lutheran Hospital
Acute Care Hospitals · Milwaukee, WIColumbus Community Hospital
Critical Access Hospitals · Columbus, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53715 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ariel Nelson's NPI number?
The NPI number for Ariel Nelson is 1083956148. It was assigned to this individual provider in the NPPES registry on March 26, 2013.
Where is Ariel Nelson located?
Ariel Nelson practices at 1211 Fish Hatchery Rd, Madison, WI 53715. The listed phone number is (608) 252-8000.
What is Ariel Nelson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Ariel Nelson enrolled in Medicare?
Yes. Ariel Nelson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Ariel Nelson accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan and Network Health list Ariel Nelson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ariel Nelson affiliated with any hospitals?
According to CMS data, Ariel Nelson is affiliated with Ssm Health St Clare Hospital - Baraboo, Ssm Health St Mary's Hospital - Madison, Community Memorial Hospital, Froedtert Memorial Lutheran Hospital and Columbus Community Hospital.
When was this NPI record last updated?
The NPPES record for Ariel Nelson was last updated on February 19, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.
