Physician Profile
Unclaimed ProfileAbout WARNER
Based in Marshfield, WI, John J Warner, MD is listed in the NPI registry under diagnostic radiology. John graduated from University of Wisconsin School of Medicine in 1983.
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 kind of doctor is Dr. Warner?
Dr. Warner is a diagnostic radiology in Marshfield, WI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
What is Dr. Warner's address?
Dr. Warner is listed at 1000 N OAK AVE, Marshfield, WI 54449. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Warner?
The number on file is (715) 389-3555. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Warner?
Dr. Warner's National Provider Identifier is 1831291871. 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. Warner train?
Dr. Warner attended University of Wisconsin School of Medicine, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Warner have?
Dr. Warner has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Warner perform?
According to Medicare billing data, Dr. Warner performs imaging including ct scan head or brain without contrast and x-ray of lower and sacral spine, 2-3 views. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Warner's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Warner. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (715) 389-3555
- Email not available
Practice Locations
1000 N OAK AVE
Marshfield, WI 54449
Procedures Most Often Billed to Medicare
83 services · 83 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ct scan head or brain without contrast | Imaging | 70450 |
34 |
| X-ray of lower and sacral spine, 2-3 views | Imaging | 72100 |
25 |
| Mri scan of brain before and after contrast | Imaging | 70553 |
13 |
| X-ray of upper spine, 2-3 views | Imaging | 72040 |
11 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other diagnostic radiology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 31 related providers in 4 groups
Other diagnostic radiology specialists in Marshfield 7
Same specialty, same city.
Trained at University of Wisconsin School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at University of Wisconsin School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ct scan head or brain without contrast 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.