Physician Profile
Unclaimed ProfileAbout JOHNKOSKI
John A Johnkoski is a healthcare provider in Wausau, WI specialising in thoracic surgery. John trained at University of Michigan Medical School, graduating in 1988. John is also listed as specialising in thoracic surgery (cardiothoracic).
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Johnkoski specialise in?
Dr. Johnkoski is a thoracic surgeon in Wausau, WI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “THORACIC SURGERY”.
NPI registry
Where is Dr. Johnkoski located?
Dr. Johnkoski is listed at 425 PINE RIDGE BLVD SUITE 209, Wausau, WI 54401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Johnkoski's phone number?
The number on file is (715) 847-0400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Johnkoski?
Dr. Johnkoski's National Provider Identifier is 1992737035. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Johnkoski go to medical school?
Dr. Johnkoski attended University of Michigan Medical School, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Johnkoski have?
Dr. Johnkoski has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Johnkoski do most often?
According to Medicare billing data, Dr. Johnkoski performs procedures including replacement of aortic valve through the skin and femoral artery, coronary artery bypass using artery graft, 1 graft and harvest of vein using an endoscope; provides treatments such as anticoagulant management of patient taking warfarin, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Johnkoski's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnkoski. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (715) 847-0400
- Email not available
Practice Locations
425 PINE RIDGE BLVD SUITE 209
Wausau, WI 54401
Procedures Most Often Billed to Medicare
283 services · 205 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Replacement of aortic valve through the skin and femoral artery | Procedure | 33361 |
64 |
| Coronary artery bypass using artery graft, 1 graft | Procedure | 33533 |
28 |
| Harvest of vein using an endoscope | Procedure | 33508 |
12 |
| Exam of lung with removal of lung lobe using an endoscope | Procedure | 32663 |
11 |
| Anticoagulant management of patient taking warfarin | Treatment | 93793 |
97 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
32 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
24 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
15 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other thoracic surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at University of Michigan Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1988 at University of Michigan Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Replacement of aortic valve through the skin and femoral artery 8
Providers in WI who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.