Doctor profile · Federal record
Dr. Michael Karkkainen, DO
Surgery Physician (CMS: General Surgery) · Marinette, WI
- NPI 1821199100
- Accepts Medicare
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3003 University Dr
Marinette, WI 541434110
(715) 735-8056 - Mailing address
-
Po Box 735044
Chicago, IL 606735044
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- September 29, 2025
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 208600000X — NUCC code
- State license (1)
- Wisconsin #38276
- Medicaid (2)
- MI #114232907 · WI #30081100
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821199100. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
353
Distinct HCPCS
8
Medicare allowed
$39,668
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99203 |
New patient office or other outpatient visit, 30-44 minutes | 92 | 92 | $105 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 66 | 40 | $54 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 49 | 48 | $75 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 47 | 43 | $87 | |
36561 |
Insertion of central venous tube with port (5 years or older) | 31 | 28 | $306 | |
77001 |
Fluoroscopic guidance for insertion or removal of central vein access device | 29 | 27 | $17 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 27 | 20 | $45 | |
47563 |
Removal of gallbladder with x-ray study of bile ducts using an endoscope | 12 | 12 | $620 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 44. This provider delivers 8.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
265
Patients
214
Total drug cost
$1,931
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 159 | 138 | $1,044 |
| Cephalexin | Generic | 76 | 57 | $497 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 30 | 19 | $390 |
Frequently asked questions
What is Dr. Michael Karkkainen's medical specialty?
Dr. Michael Karkkainen practices Surgery Physician in Marinette, WI.
Where does Dr. Michael Karkkainen practice?
Dr. Michael Karkkainen practices at 3003 University Dr, Marinette, WI 541434110. Office phone: 7157358056.
What is Dr. Michael Karkkainen's NPI?
Dr. Michael Karkkainen's National Provider Identifier (NPI) is 1821199100, issued by NPPES.
Does Dr. Michael Karkkainen accept Medicare assignment?
Yes. Dr. Michael Karkkainen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Karkkainen commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99203); Established patient office or other outpatient visit (HCPCS 99212); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221). Source: CMS Medicare Physician & Other Practitioners file.