Doctor profile · Federal record
Dr. Carl Chojnacki, APNP
Nurse Practitioner · Milwaukee, WI
- NPI 1043551971
- Accepts Medicare
- 14 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2801 W Kinnickinnic River Pkwy, Ste 245
Milwaukee, WI 532153669
(414) 649-6780
Credentials & registration
- NPI registered
- March 2013 — 13 yrs on file
- Profile last updated
- November 30, 2021
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State license (1)
- Wisconsin #5246
- Medicaid
- WI #100028712
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1043551971. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
331
Distinct HCPCS
6
Medicare allowed
$16,447
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 97 | 72 | $100 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 69 | 45 | $27 | |
36415 |
Insertion of needle into vein for collection of blood sample | 63 | 50 | $8 | |
83036 |
Hemoglobin a1c level | 63 | 50 | $10 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 26 | 24 | $72 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 13 | 12 | $143 |
In context: peer comparison
Among 147 peers in Milwaukee Nurse Practitioner, average services per provider: 61. This provider delivers 5.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
852
Patients
331
Total drug cost
$526,738
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) | Brand | 150 | 67 | $107,043 |
| Levothyroxine Sodium | Generic | 113 | 44 | $2,025 |
| Insulin Lispro Kwikpen U-100 (Insulin Lispro) | Brand | 78 | 33 | $20,512 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 71 | 33 | $1,193 |
| Novolog Flexpen (Insulin Aspart) | Brand | 66 | 37 | $77,794 |
| Humalog Kwikpen U-100 (Insulin Lispro) | Brand | 63 | 33 | $110,408 |
| Ozempic (Semaglutide) | Brand | 47 | 20 | $78,027 |
| Nano 2Nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 42 | 21 | $5,544 |
| Jardiance (Empagliflozin) | Brand | 36 | 0 | $38,001 |
| Metformin Hcl | Generic | 33 | 14 | $319 |
Frequently asked questions
What is Dr. Carl Chojnacki's medical specialty?
Dr. Carl Chojnacki practices Nurse Practitioner in Milwaukee, WI.
Where does Dr. Carl Chojnacki practice?
Dr. Carl Chojnacki practices at 2801 W Kinnickinnic River Pkwy, Milwaukee, WI 532153669. Office phone: 4146496780.
What is Dr. Carl Chojnacki's NPI?
Dr. Carl Chojnacki's National Provider Identifier (NPI) is 1043551971, issued by NPPES.
Does Dr. Carl Chojnacki accept Medicare assignment?
Yes. Dr. Carl Chojnacki accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Carl Chojnacki commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.