JOHN TOMASHEK M.D.
NPI 1013999564
Radiology - Vascular & Interventional Radiology in Mequon, WI

Active since November 18, 2005PECOS EnrolledAccepts Medicare Assignment
81.58/100
CMS Quality Rating
10945 N PORT WASHINGTON RD STE 201, MEQUON, WI 53092(262) 292-3151 Get Directions Write a Review

NPPES record last updated: September 11, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 11, 2024, Nov 17, 2023, Feb 18, 2020 (3 updates tracked since 2020).

About John Tomashek M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN TOMASHEK M.D. (NPI 1013999564) is an individual vascular & interventional radiology provider in Mequon, Wisconsin, licensed in Wisconsin (44063) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and is a graduate of University Of Wisconsin School Of Medicine (1996).

NPPES Registry Identity

NPI1013999564
Entity TypeIndividualMale
Primary Taxonomy2085R0204X
Provider Legal NameJOHN TOMASHEKCredential: M.D.
Location Address10945 N PORT WASHINGTON RD STE 201Mequon, WI 53092-5078
Mailing Address10945 N Port Washington Rd Ste 201Mequon, WI 53092-5078 · (262) 292-3151
Sole ProprietorNo
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 1996
Enumeration DateNovember 18, 2005
Last NPPES UpdateSeptember 11, 20243 updates tracked since enumeration
NPPES CertifiedSeptember 11, 2024
NPI 1013999564 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyRadiology · Vascular & Interventional RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0204X
License Licensed in WI · 44063
Definition

A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License 44063 (WI)
10945 N PORT WASHINGTON RD STE 201, Mequon, WI 53092

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

John Tomashek M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103869284
PECOS Enrollment IDI20050609000393
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 24

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
67 services65 patients
Ultrasound of both sides of head and neck blood flow 93880
An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.
39 services38 patients
Injection of chemical agent into multiple incompetent veins of leg 36471
This procedure involves injecting a special chemical into problematic veins in the leg. The chemical helps to close off these veins, rerouting blood through healthier veins. This can alleviate discomfort and improve the appearance of the treated area.
38 services20 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
38 services37 patients
Ultrasound study of one arm or leg veins with compression and maneuvers 93971
This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.
35 services18 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
33 services33 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Columbia St Mary's Hospital Milwaukee

Acute Care Hospitals · Milwaukee, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520051
Location2323 N Lake DrMilwaukee, WI 53211 · Milwaukee County
Emergency services Birthing friendly

Ascension St Francis Hospital

Acute Care Hospitals · Milwaukee, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520078
Location3237 S 16th StMilwaukee, WI 53215 · Milwaukee County
Emergency services

Ascension All Saints Hospital

Acute Care Hospitals · Racine, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520096
Location3801 Spring StRacine, WI 53405 · Racine County
Emergency services Birthing friendly

Ascension SE Wisconsin Hospital

Acute Care Hospitals · Milwaukee, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520136
Location5000 W Chambers StMilwaukee, WI 53210 · Milwaukee County
Emergency services Birthing friendly

Orthopaedic Hospital Of Wisconsin

Acute Care Hospitals · Glendale, WI
OwnershipPhysician
CMS Certification Number520194
Location475 W River Woods PkwyGlendale, WI 53212 · Milwaukee County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53092 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality94.95
Improvement Activities40
Cost41.55

Reported Quality Measures

Prevention of Central Venous Catheter (CVC) - Related Bloodstream Infections
Percentage of patients, regardless of age, who undergo central venous catheter (CVC) insertion for whom CVC was inserted with all elements of maximal sterile barrier technique, hand hygiene, skin preparation and, if ultrasound is used, sterile ultrasound…
100%47 patients
Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques
Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…
99%119 patients
Radiology: Stenosis Measurement in Carotid Imaging Reports
Percentage of final reports for carotid imaging studies (neck magnetic resonance angiography [MRA], neck computed tomography angiography [CTA], neck duplex ultrasound, carotid angiogram) performed that include direct or indirect reference to measurements of…
100%78 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Durable Medical Equipment & Medical Supplies
10945 N PORT WASHINGTON RD STE 201
MEQUON, WI 53092
Radiology (Diagnostic Radiology)
10945 N PORT WASHINGTON RD STE 201
MEQUON, WI 53092
Radiology (Diagnostic Radiology)
10945 N PORT WASHINGTON RD STE 201
MEQUON, WI 53092
Radiology (Vascular & Interventional Radiology)
10945 N PORT WASHINGTON RD STE 201
MEQUON, WI 53092
Radiology (Diagnostic Radiology)
10945 N PORT WASHINGTON RD STE 201
MEQUON, WI 53092
Radiology (Diagnostic Radiology)
10945 N PORT WASHINGTON RD STE 201
MEQUON, WI 53092
Radiology (Diagnostic Radiology)
10945 N PORT WASHINGTON RD STE 201
MEQUON, WI 53092
Radiology (Diagnostic Radiology)
10945 N PORT WASHINGTON RD STE 201
MEQUON, WI 53092

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Tomashek's NPI number?

The NPI number for John Tomashek is 1013999564. It was assigned to this individual provider in the NPPES registry on November 18, 2005.

Where is John Tomashek located?

John Tomashek practices at 10945 N Port Washington Rd Ste 201, Mequon, WI 53092. The listed phone number is (262) 292-3151.

What is John Tomashek's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.

Is John Tomashek enrolled in Medicare?

Yes. John Tomashek is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does John Tomashek accept?

Health plans from CareSource (Common Ground Healthcare) list John Tomashek as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is John Tomashek affiliated with any hospitals?

According to CMS data, John Tomashek is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, Ascension St Francis Hospital, Ascension All Saints Hospital, Ascension SE Wisconsin Hospital and Orthopaedic Hospital Of Wisconsin.

When was this NPI record last updated?

The NPPES record for John Tomashek was last updated on September 11, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.