Are you John Tomashek, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 10945 N Port Washington Rd Ste 201, Mequon, WI 53092
About Dr. Tomashek
John Tomashek, M.D. is a healthcare provider in Mequon, WI specializing in diagnostic radiology. John trained at University of Wisconsin School of Medicine, graduating in 1996. John is also listed as specializing in vascular & interventional radiology. According to Medicare claims data, John cared for 507 Medicare patients across 563 services. The services billed most often include x-ray of chest, 1 view, ultrasound of both sides of head and neck blood flow, and x-ray of chest, 2 views. This provider record is associated with NPI 1013999564.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (262) 292-3151
- Email not available
Practice Locations
10945 N PORT WASHINGTON RD STE 201
Mequon, WI 53092
Conditions Evaluated or Diagnosed
Within Diagnostic Radiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Abdomen & Pelvis
- Abdominal Pain
- Appendicitis
- Diverticulitis
- Enlarged prostate
- Gallstones
- Kidney stones
- Liver Lesions
- Ovarian cysts
Bone & Joint
- Ankle Sprain or Fracture
- Bone fractures
- Heel pain
- Hip osteoarthritis
- Osteoporosis
- Rotator cuff tear
- Torn meniscus
Brain & Head
- Brain aneurysm
- Brain tumor
- Concussion in Children
- Migraines
- Sinus infection
- Transient ischemic attack
Brain & nerves
Breast
Chest & Heart
General
Heart & blood vessels
Joint & bone
Liver & digestion
Lungs & breathing
Men's health
Neck & Thyroid
Nerve pain
Pelvic health
Spine
Spine & back
Vascular
Women's health
Procedures & services
Abdominal imaging
Biopsies
Bone Density
Breast Imaging
CT Scan
Digestive & liver
Fluoroscopy
General imaging
Heart & blood vessels
Joint & bone
MRI
Nuclear Medicine
Pelvic imaging
Screening & Prevention
Spine & back
Ultrasound
- Abdominal Ultrasound
- Carotid Ultrasound
- Leg Vein Ultrasound
- Pelvic ultrasound
- Scrotal Ultrasound
- Thyroid ultrasound
- Ultrasound
Urinary & kidney
Women's health
X-Ray
Procedures Most Often Billed to Medicare
563 services · 507 patients · 24 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of chemical agent into multiple incompetent veins of leg | Procedure | 36471 |
38 | As often as other peers in Diagnostic Radiology |
| X-ray of chest, 1 view | Imaging | 71045 |
67 | Less often than most peers in Diagnostic Radiology |
| X-ray of chest, 2 views | Imaging | 71046 |
38 | Less often than most peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
33 | Less often than most peers in Diagnostic Radiology |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
25 | Less often than most peers in Diagnostic Radiology |
| Ct scan head or brain without contrast | Imaging | 70450 |
23 | Less often than most peers in Diagnostic Radiology |
| Ct scan of blood vessels of chest with contrast | Imaging | 71275 |
19 | Less often than most peers in Diagnostic Radiology |
| X-ray of abdomen, 1 view | Imaging | 74018 |
17 | Less often than most peers in Diagnostic Radiology |
| Complete ultrasound scan behind abdominal cavity | Imaging | 76770 |
16 | Less often than most peers in Diagnostic Radiology |
| Limited ultrasound scan of abdomen | Imaging | 76705 |
16 | Less often than most peers in Diagnostic Radiology |
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 radiologists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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 — 17 related providers in 3 groups
Trained at University of Wisconsin School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1996 at University of Wisconsin School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of chemical agent into multiple incompetent veins of leg 1
Providers in WI who bill this service to Medicare most often.
Common questions
What kind of doctor is John Tomashek?
John Tomashek is a radiologist in Mequon, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
What is John Tomashek's address?
John Tomashek is listed at 10945 N Port Washington Rd Ste 201, Mequon, WI 53092. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John Tomashek?
The number on file is (262) 292-3151. Contact the office directly to confirm availability and scheduling.
NPI registry
What is John Tomashek's NPI number?
John Tomashek's National Provider Identifier is 1013999564. 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 John Tomashek train?
John Tomashek attended University of Wisconsin School of Medicine, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
How long has John Tomashek been practicing?
John Tomashek has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
What procedures does John Tomashek perform?
According to Medicare billing data, John Tomashek performs procedures including injection of chemical agent into multiple incompetent veins of leg; reads or performs imaging such as x-ray of chest, 1 view and x-ray of chest, 2 views; provides treatments such as ultrasound of both sides of head and neck blood flow and ultrasound study of one arm or leg veins with compression and maneuvers, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has John Tomashek confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by John Tomashek. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.