Active NPI 1821199100 Individual Practitioner Male Practitioner

Dr. Michael M Karkkainen , DO

Surgery • Marinette, WI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Michael Karkkainen, DO is a certified Surgery practicing in Marinette, WI. With approximately 35 years of clinical experience since graduating from Michigan State University College Of Osteopathic Medicine in 1991, Dr. Karkkainen delivers high-quality medical care to the local community at 3003 UNIVERSITY DR.

Dr. Karkkainen is affiliated with Aurora Medical Group, Inc. and accepts Medicare assignment.

Frequently performed procedures and clinical services include new patient outpatient office visit, established patient outpatient office visit, initial hospital inpatient care per day. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3003 University Dr

Marinette, WI 541434110

Telephone 7157358056

Associated Practice Facility / Clinic

🏢 Aurora Medical Center Bay Area, Inc Facility NPI 1427135557

Medicare Profile & Education

Medical School

Michigan State University College Of Osteopathic Medicine

Graduation Year

1991

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Marinette, WI

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

35 Yrs +13.5 yrs vs City Avg

City Avg: 21.5 Yrs

State Avg: 25.2 Yrs

Regional Practice Density

4 Specialists

Practicing in Marinette, WI (765 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

93.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Karkkainen (35 Years) 35 Yrs

Marinette Specialty Average (21.5 Years) 21.5 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	63	63	$510.00	$101.72
99213 Established patient office or other outpatient visit, typically 15 minutes	52	47	$350.00	$85.21
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	42	32	$240.00	$52.91
99221 Initial hospital inpatient care per day, typically 30 minutes	39	36	$461.15	$75.46
99231 Follow-up hospital inpatient care per day, typically 15 minutes	25	13	$245.00	$45.58
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	12	12	$8250.00	$295.90

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	92	92	$485.00	$105.31
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	66	40	$230.00	$54.11
99221 Initial hospital inpatient care per day, typically 30 minutes	49	48	$439.69	$75.46
99213 Established patient office or other outpatient visit, typically 15 minutes	47	43	$330.00	$86.51
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	31	28	$7890.00	$306.07
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	29	27	$230.00	$16.88
99231 Follow-up hospital inpatient care per day, typically 15 minutes	27	20	$235.00	$45.23
47563 Removal of gallbladder with x-ray study of bile ducts using an endoscope	12	12	$8210.00	$620.48

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	111	83	$220.00	$54.21
99202 New patient office or other outpatient visit, typically 20 minutes	79	79	$318.00	$70.01
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	32	31	$355.00	$68.12
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	27	27	$460.00	$106.49
99231 Follow-up hospital inpatient care per day, typically 15 minutes	22	14	$230.00	$36.56
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	21	21	$7590.00	$292.56
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	20	20	$230.00	$17.49
99213 Established patient office or other outpatient visit, typically 15 minutes	16	16	$313.00	$86.98
99221 Initial hospital inpatient care per day, typically 30 minutes	14	14	$415.00	$93.89
99202 New patient office or other outpatient visit, typically 20 minutes	11	11	$318.00	$42.47
49505 Repair of groin hernia (5 years or older)	11	11	$4975.45	$482.70
47563 Removal of gallbladder with x-ray study of bile ducts using an endoscope	11	11	$8010.00	$663.41

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	115	57	$210.00	$54.11
99202 New patient office or other outpatient visit, typically 20 minutes	88	88	$300.00	$69.65
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	43	40	$333.49	$67.47
99213 Established patient office or other outpatient visit, typically 15 minutes	35	35	$295.00	$88.71
99231 Follow-up hospital inpatient care per day, typically 15 minutes	17	12	$220.00	$37.06
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	16	16	$7210.00	$276.60
47563 Removal of gallbladder with x-ray study of bile ducts using an endoscope	14	14	$7650.00	$582.59
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	12	12	$220.00	$17.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99202 New patient office or other outpatient visit, typically 20 minutes	104	104	$304.88	$73.46
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	98	56	$207.30	$42.97
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	75	63	$324.12	$70.09
99213 Established patient office or other outpatient visit, typically 15 minutes	58	56	$295.90	$72.72
99231 Follow-up hospital inpatient care per day, typically 15 minutes	48	30	$221.77	$38.39
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	14	14	$6787.14	$326.44
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	13	13	$197.54	$18.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	158	92	$247.26	$43.62
99202 New patient office or other outpatient visit, typically 20 minutes	139	139	$424.25	$73.23
99213 Established patient office or other outpatient visit, typically 15 minutes	82	75	$412.30	$71.09
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	59	56	$417.19	$69.38
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	34	34	$114.12	$18.18
99231 Follow-up hospital inpatient care per day, typically 15 minutes	28	15	$229.92	$38.09
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	25	25	$7053.88	$317.34
49505 Repair of groin hernia (5 years or older)	16	16	$3673.98	$521.02
36589 Removal of central venous catheter for infusion	13	12	$995.72	$130.86
47563 Removal of gallbladder with x-ray study of bile ducts using an endoscope	12	12	$4245.79	$672.56

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	242	109	$234.71	$41.78
99202 New patient office or other outpatient visit, typically 20 minutes	156	156	$402.71	$71.14
99213 Established patient office or other outpatient visit, typically 15 minutes	100	93	$400.53	$69.10
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	73	70	$410.87	$68.88
99231 Follow-up hospital inpatient care per day, typically 15 minutes	45	28	$220.47	$36.66
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	39	38	$108.33	$17.90
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	31	29	$6695.67	$309.64
47563 Removal of gallbladder with x-ray study of bile ducts using an endoscope	17	17	$4030.18	$660.21
49505 Repair of groin hernia (5 years or older)	14	14	$3775.85	$533.80

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	278	258	$455.74	$69.71
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	275	125	$220.51	$41.48
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	72	64	$384.02	$68.51
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	36	22	$219.50	$24.35
77001 Fluoroscopic guidance for insertion, replacement or removal of central venous access device	33	26	$101.31	$17.87
99231 Follow-up hospital inpatient care per day, typically 15 minutes	29	22	$207.33	$37.60
49505 Repair of groin hernia (5 years or older)	22	22	$3370.63	$520.74
11042 Removal of skin and tissue, 20.0 sq cm or less	21	18	$621.09	$59.21
36561 Insertion of central venous catheter and implanted device for infusion beneath the skin, patient 5 years or older	17	17	$6261.73	$310.94
49568 Placement of mesh to repair incisional or abdominal hernia	13	13	$1413.41	$249.65
33208 Insertion of pacemaker and upper and lower heart chamber electrode	13	13	$2818.35	$478.98
99202 New patient office or other outpatient visit, typically 20 minutes	12	12	$376.61	$71.37

Medical Specialties & State Licenses

CMS Verified: 2025-09-29

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License WI 38276

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

114232907 (MI)

Medicaid State Provider ID

30081100 (WI)

Hospital & Practice Group Affiliations

Aurora Medical Group, Inc.

3003 University Dr, Marinette, WI 541434110

Phone: 7157356621

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Dr. Kristin Kniech , DO

Obstetrics & Gynecology

NPI 1003479775

Doctor of Osteopathic Medicine (D.O.)

Brooke Berg , PA-C

Physician Assistant

NPI 1023772084

Physician Assistant (Certified)

Dr. Richard Stein , MD

Emergency Medicine

NPI 1033143318

Doctor of Medicine (M.D.)

Dr. Aimee Morell-Watton , MD

Hospitalist

NPI 1073776134

Doctor of Medicine (M.D.)

Dr. Ahmed Mohamed , MD

Anesthesiology

NPI 1083124929

Doctor of Medicine (M.D.)

Colin Van Pay , PA-C

Physician Assistant

NPI 1083266548

Physician Assistant (Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events

📍

Updated Practice Location September 29, 2025

Registered at 3003 UNIVERSITY DR, MARINETTE, WI 541434110 (Tel: 7157358056)

📍

Updated Business Mailing Address September 29, 2025

Registered at PO BOX 735044, CHICAGO, IL 606735044 (Tel: 8003262250)

📍

Updated Practice Location August 28, 2018

Registered at 3003 UNIVERSITY DR STE 102, MARINETTE, WI 54143 (Tel: 7157358056)

✅

NPI Profile Active January 21, 2008

NPI status registered as active in NPPES database

📍

Updated Practice Location January 21, 2008

Registered at 3130 SHORE DR STE 20, MARINETTE, WI 541434291 (Tel: 7157358056)

📍

Updated Business Mailing Address January 21, 2008

Registered at 1607 41ST AVE, MENOMINEE, MI 498581154

👤

Provider Name / Credentials Updated January 21, 2008

Recorded as MICHAEL KARKKAINEN, DO

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 21, 2008

Surgery (License #38276 in WI)

🟢

Initial NPI Registration & Enumeration September 26, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1821199100

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: September 26, 2006

Last Update: September 29, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 735044

Chicago, IL 606735044

Phone: 8003262250

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.