Doctor profile · Federal record
Dr. Ariel Nelson, M.D.
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Madison, WI
- NPI 1083956148
- Accepts Medicare
- MIPS 80.5 / 100 · 2023
- 13 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1211 Fish Hatchery RD
Madison, WI 537151909
(608) 252-8000
fax (608) 410-2905 - Additional location
-
9200 W Wisconsin Ave, Clcc - Fifth Floor
Milwaukee, WI 532263522
(414) 805-0509
fax (414) 805-6808 - Mailing address
-
9200 W Wisconsin Ave, Clcc - Fifth Floor
Milwaukee, WI 532263522
Credentials & registration
- NPI registered
- March 2013 — 13 yrs on file
- Profile last updated
- February 19, 2026
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Wisconsin #63243
- Medicaid
- WI #1083956148
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083956148. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
415
Distinct HCPCS
8
Medicare allowed
$38,331
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 91 | 47 | $92 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 84 | 40 | $135 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 74 | 25 | $75 | |
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 66 | 24 | $29 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 38 | 30 | $62 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 29 | 15 | $112 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 21 | 21 | $170 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 12 | 11 | $164 |
In context: peer comparison
Among 16 peers in this city , average services per provider: 432. This provider delivers 1.0× the peer median.Open Payments
Industry payments received
All-time total
$2,533
Transactions
4
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 2 | $2,285.00 | |
| Exelixis Inc. | 1 | $136.78 | |
| AstraZeneca Pharmaceuticals LP | 1 | $110.89 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
506
Patients
85
Total drug cost
$1,631,158
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Abiraterone Acetate | Generic | 187 | 24 | $497,321 |
| Prednisone | Generic | 90 | 25 | $854 |
| Orgovyx (Relugolix) | Brand | 45 | 0 | $120,891 |
| Dexamethasone | Generic | 31 | 18 | $473 |
| Cabometyx (Cabozantinib S-Malate) | Brand | 29 | 0 | $538,643 |
| Ondansetron Hcl | Generic | 25 | 18 | $391 |
| Tamsulosin Hcl | Generic | 19 | 0 | $366 |
| Olanzapine | Generic | 18 | 0 | $98 |
| Pantoprazole Sodium | Generic | 15 | 0 | $346 |
| Lenvima (Lenvatinib Mesylate) | Brand | 14 | 0 | $322,442 |
Frequently asked questions
What is Dr. Ariel Nelson's medical specialty?
Dr. Ariel Nelson practices Hematology & Oncology Physician in Madison, WI.
Where does Dr. Ariel Nelson practice?
Dr. Ariel Nelson practices at 1211 Fish Hatchery RD, Madison, WI 537151909. Office phone: 6082528000.
What is Dr. Ariel Nelson's NPI?
Dr. Ariel Nelson's National Provider Identifier (NPI) is 1083956148, issued by NPPES.
Does Dr. Ariel Nelson accept Medicare assignment?
Yes. Dr. Ariel Nelson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ariel Nelson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.