Doctor profile · Federal record
Dr. Dirk Nuenninghoff, MD
Rheumatology Physician (CMS: Rheumatology) · Portage, WI
- NPI 1538109053
- Accepts Medicare
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2977 County Hwy Cx
Portage, WI 53901
(608) 745-3399 - Additional location
-
1821 S Stoughton RD
Madison, WI 537162257
(608) 260-6000
fax (608) 260-6855 - Mailing address
-
7974 Uw Health CT
Middleton, WI 535625531
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- August 4, 2025
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Wisconsin #45438-020
- Medicaid
- WI #1538109053
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538109053. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
583
Distinct HCPCS
7
Medicare allowed
$30,223
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
36415 |
Insertion of needle into vein for collection of blood sample | 195 | 86 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 178 | 107 | $122 | |
85027 |
Complete blood cell count (red cells, white blood cell, platelets), automated test | 90 | 33 | $6 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 68 | 45 | $8 | |
81001 |
Manual urinalysis test with examination using microscope, automated | 22 | 20 | $3 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 16 | 14 | $171 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 14 | 14 | $209 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 83. This provider delivers 7.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
908
Patients
220
Total drug cost
$664,988
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydroxychloroquine Sulfate | Generic | 180 | 56 | $9,634 |
| Methotrexate (Methotrexate Sodium) | Brand | 146 | 51 | $6,100 |
| Prednisone | Generic | 105 | 52 | $1,299 |
| Sulfasalazine | Generic | 85 | 17 | $2,493 |
| Enbrel Sureclick (Etanercept) | Brand | 57 | 0 | $401,691 |
| Leflunomide | Generic | 56 | 15 | $3,909 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 55 | 0 | $1,312 |
| Meloxicam | Generic | 46 | 15 | $608 |
| Methotrexate Sodium (Methotrexate Sodium/Pf) | Brand | 44 | 14 | $804 |
| Humira(Cf) Pen (Adalimumab) | Brand | 33 | 0 | $235,134 |
Hospital affiliations
Frequently asked questions
What is Dr. Dirk Nuenninghoff's medical specialty?
Dr. Dirk Nuenninghoff practices Rheumatology Physician in Portage, WI.
Where does Dr. Dirk Nuenninghoff practice?
Dr. Dirk Nuenninghoff practices at 2977 County Hwy Cx, Portage, WI 53901. Office phone: 6087453399.
What is Dr. Dirk Nuenninghoff's NPI?
Dr. Dirk Nuenninghoff's National Provider Identifier (NPI) is 1538109053, issued by NPPES.
Does Dr. Dirk Nuenninghoff accept Medicare assignment?
Yes. Dr. Dirk Nuenninghoff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dirk Nuenninghoff commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Complete blood cell count (red cells, white blood cell, platelets), automated test (HCPCS 85027). Source: CMS Medicare Physician & Other Practitioners file.