DR. MATTHIEU JOSEPH MAYER MD
NPI 1528564861
Radiology - Diagnostic Radiology in Milwaukee, WI

Q: What is Matthieu Mayer's NPI number?

The NPI number for Matthieu Mayer is 1528564861. It was assigned to this individual provider in the NPPES registry on April 4, 2018.

Q: What is Matthieu Mayer's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Matthieu Mayer was last updated on May 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 04, 2018PECOS EnrolledAccepts Medicare Assignment

9200 W WISCONSIN AVE, MILWAUKEE, WI 53226(414) 805-3750(414) 259-9290 Get Directions Write a Review

NPPES record last updated: May 17, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 17, 2023, Nov 23, 2019 (2 updates tracked since 2019).

On this page

About Dr. Matthieu Joseph Mayer Md NPPES

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

DR. MATTHIEU JOSEPH MAYER MD (NPI 1528564861) is an individual diagnostic radiology provider in Milwaukee, Wisconsin, licensed in Wisconsin (74011) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Gundersen Palmer Lutheran Hospital And Clinics, and maintains 6 additional practice locations.

NPPES Registry Identity

NPI1528564861

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. MATTHIEU JOSEPH MAYERCredential: MD

Location Address9200 W WISCONSIN AVEMilwaukee, WI 53226-3522

Mailing Address9200 W Wisconsin AveMilwaukee, WI 53226-3522 · (414) 805-3750 · Fax (414) 259-9290

Phone(414) 805-3750

Fax(414) 259-9290

Sole ProprietorNo

Medical School CMSOtherGraduated 2018

Enumeration DateApril 4, 2018

Last NPPES UpdateMay 17, 20232 updates tracked since enumeration

NPPES CertifiedMay 17, 2023

✔ NPI 1528564861 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in WI · 74011

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

9200 W WISCONSIN AVE, Milwaukee, WI 53226

Open in Google Maps ↗

Secondary Practice Locations 6

Location 11836 South AveLA Crosse, WI 54601-5429 · Phone (608) 782-7300

Location 210596 N Port Washington RdMequon, WI 53092-5537 · Phone (414) 774-7226 · Fax (414) 454-4995

Location 34455 S 108th StGreenfield, WI 53228-2504 · Phone (414) 427-5310 · Fax (414) 427-5311

Location 43200 Pleasant Valley RdWest Bend, WI 53095-9274 · Phone (262) 836-5533 · Fax (262) 836-7301

Location 5W180N8085 Town Hall RdMenomonee Falls, WI 53051-3518 · Phone (262) 257-3060 · Fax (262) 518-5052

Location 61905 N Calhoun RdBrookfield, WI 53005-5005 · Phone (262) 754-8000 · Fax (262) 780-3396

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company, Wellmark Health Plan of Iowa, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Matthieu Joseph Mayer Md 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 ID5991052078

PECOS Enrollment IDI20230522001330, I20240118000539, I20240124000351

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.

Medicare Billing Reassignments

Medicare enrollment records show Matthieu Mayer reassigns Medicare billing to 15 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Medical College Of Wisconsin, Inc.

0.5 mi

Internal Medicine

8701 WATERTOWN PLANK RD
Milwaukee, WI 53226

Reassigned Medicare billing, Wisconsin enrollment
3,983 clinicians in this Medicare group

NPI 1699720086 (414) 955-7101

Gundersen Lutheran Medical Center Inc

2.6 mi

Clinic/Center

13500 WATERTOWN PLANK RD STE 206
Elm Grove, WI 53122

Reassigned Medicare billing, Wisconsin and Minnesota enrollments
Also billed through NPI 1376593442 (Minnesota)
1,457 clinicians in this Medicare group

NPI 1548992316 (608) 782-7300

Froedtert & the Medical College Of Wisconsin Community Physicians, Inc.

10 mi

Internal Medicine

W180N8000 TOWN HALL RD
Menomonee Falls, WI 53051

Reassigned Medicare billing, Wisconsin enrollment
2,294 clinicians in this Medicare group

NPI 1568787448 (262) 255-2500

Gundersen Clinic, Ltd.

79 mi

Optometrist

118 S MARQUETTE RD
Prairie Du Chien, WI 53821

Reassigned Medicare billing, Wisconsin, Iowa and Minnesota enrollments
Also billed through NPI 1851343115 (Minnesota)
928 clinicians in this Medicare group

NPI 1023064078 (608) 782-7300

Moundview Memorial Hospital & Clinics, Inc.

94 mi

Rural Health

207 N PIONEER PARK RD, UNIT 8
Westfield, WI 53964

Reassigned Medicare billing, Wisconsin enrollment
280 clinicians in this Medicare group

NPI 1861829194 (608) 296-6350

St. Joseph's Health Services, Inc

118 mi

Rural Health

301 RAILROAD RD
Wonewoc, WI 53968

Reassigned Medicare billing, Wisconsin enrollment
Medicare enrollment name: St Josephs Health Services Inc
282 clinicians in this Medicare group

NPI 1881607463 (608) 464-3575

Memorial Hospital Of Boscobel

123 mi

Rural Health

525 N WISCONSIN AVE
Muscoda, WI 53573

Reassigned Medicare billing, Wisconsin enrollment
299 clinicians in this Medicare group

NPI 1255620613 (608) 375-4112

Tomah Memorial Hospital Inc

140 mi

Critical Access

501 GOPHER DR
Tomah, WI 54660

Reassigned Medicare billing, Wisconsin enrollment
Also billed through NPI 1184765240 (Wisconsin)
249 clinicians in this Medicare group

NPI 1992970453 (608) 372-2181

Vernon Memorial Healthcare, Inc.

148 mi

Critical Access

507 S MAIN ST
Viroqua, WI 54665

Reassigned Medicare billing, Wisconsin enrollment
127 clinicians in this Medicare group

NPI 1497750921 (608) 637-2101

Prairie Du Chien Memorial Hospital Association Inc

155 mi

Clinical Medical Laboratory

37868 US HIGHWAY 18
Prairie Du Chien, WI 53821

Reassigned Medicare billing, Wisconsin enrollment
Also billed through NPI 1619024197 (Wisconsin)
231 clinicians in this Medicare group

NPI 1295883247 (608) 357-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 45

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.

239 services232 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.

165 services165 patients

Dxa bone density measurement of hip, pelvis, spine 77080

A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.

150 services150 patients

X-ray of chest, 2 views 71046

89 services83 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

87 services82 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

86 services51 patients

Dxa bone density measurement of hip, pelvis, spine 77080

75 services75 patients

X-ray of shoulder, minimum of 2 views 73030

64 services60 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

64 services51 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

60 services29 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

57 services55 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

51 services40 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

50 services48 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

43 services43 patients

X-ray of abdomen, 1 view 74018

39 services28 patients

X-ray of foot, minimum of 3 views 73630

38 services34 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

36 services35 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

34 services32 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

32 services24 patients

X-ray of ankle, minimum of 3 views 73610

32 services25 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

31 services23 patients

Dxa bone density measurement of forearm, finger, hand, or foot 77081

A DXA bone density measurement of the forearm, finger, hand, or foot is a non-invasive procedure that uses X-rays to measure the amount of calcium and other minerals in your bones. This test helps to assess the strength of your bones and your risk of fractures.

31 services31 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

28 services25 patients

X-ray of hip, 2-3 views 73502

26 services23 patients

X-ray of knee, 3 views 73562

26 services23 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

24 services21 patients

X-ray of knee, 4 or more views 73564

24 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.

22 services22 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

21 services21 patients

Ct scan of chest without contrast 71250

21 services21 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

21 services20 patients

X-ray of hand, minimum of 3 views 73130

18 services16 patients

X-ray of thigh bone, minimum 2 views 73552

An X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.

18 services16 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.

17 services17 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

16 services11 patients

X-ray of lower and sacral spine, 2-3 views 72100

15 services15 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

15 services14 patients

X-ray of upper spine, 2-3 views 72040

An X-ray of the upper spine, with 2-3 views, is a painless procedure that employs a small amount of radiation to capture images of your neck and upper back. It assists in diagnosing conditions like arthritis, fractures, or spinal deformities.

14 services12 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

14 services14 patients

Dxa bone density measurement of forearm, finger, hand, or foot 77081

14 services14 patients

X-ray of wrist, minimum of 3 views 73110

13 services13 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

13 services13 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

12 services12 patients

Ct scan of leg without contrast 73700

A CT scan of the leg is a non-invasive imaging test that uses X-rays to capture detailed images of your leg's bones, muscles, and blood vessels. It doesn't use contrast dye and doesn't cause any pain. It helps in diagnosing injuries or diseases.

12 services11 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Gundersen Palmer Lutheran Hospital And Clinics

Critical Access Hospitals · West Union, IA

OwnershipVoluntary non-profit - Private

CMS Certification Number161316

Location112 Jefferson StreetWest Union, IA 52175 · Fayette County

Emergency services

St Elizabeth Medical Center

Critical Access Hospitals · Wabasha, MN

OwnershipProprietary

CMS Certification Number241335

Location1200 Grant Blvd WWabasha, MN 55981 · Wabasha County

Emergency services

Gundersen Lutheran Medical Center

Acute Care Hospitals · La Crosse, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520087

Location1910 South AveLa Crosse, WI 54601 · La Crosse County

Emergency services Birthing friendly

Gundersen Tri-County Hospital & Clinics

Critical Access Hospitals · Whitehall, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number521316

Location18601 Lincoln StWhitehall, WI 54773 · Trempealeau County

Emergency services

Gundersen Boscobel Area Hospital And Clinics

Critical Access Hospitals · Boscobel, WI

OwnershipVoluntary non-profit - Private

CMS Certification Number521344

Location205 Parker StBoscobel, WI 53805 · Grant County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53226 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.

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.

TRACY BLAIR WANDTKE HERRMANN APNP, CNM

Advanced Practice Midwife

9200 W WISCONSIN AVE
MILWAUKEE, WI 53226

Milwaukee County (414) 805-4777

DR. ZACHARY SMITH DO

Internal Medicine (Gastroenterology)

9200 W WISCONSIN AVE
MILWAUKEE, WI 53226

Milwaukee County (414) 955-6830

DR. COLLEEN ANN CROWE M.D., M.P.H.

Emergency Medicine

9200 W WISCONSIN AVE
MILWAUKEE, WI 53226

Milwaukee County (414) 805-6469

ROBERTO MEJIAS APNP

Nurse Practitioner (Pediatrics)

9200 W WISCONSIN AVE
MILWAUKEE, WI 53226

Milwaukee County (414) 805-6600

MRS. ANNE E B LAKATOS APN-BC, APNP, RN

Nurse Practitioner (Adult Health)

9200 W WISCONSIN AVE, DEPT OF INTERNAL MEDICINE
MILWAUKEE, WI 53226

Milwaukee County (414) 805-6850

MRS. AMANDA M MANDERS APNP

Nurse Practitioner (Adult Health)

9200 W WISCONSIN AVE
MILWAUKEE, WI 53226

Milwaukee County (414) 805-6850

KATHLEEN A WATERHOUSE-SKIBICKI CRNA

Nurse Anesthetist, Certified Registered

9200 W WISCONSIN AVE
MILWAUKEE, WI 53226

Milwaukee County (414) 805-5951

ANDREA L BEQUEST PA

Physician Assistant (Medical)

9200 W WISCONSIN AVE, INTERNAL MEDICINE
MILWAUKEE, WI 53226

Milwaukee County (414) 955-0350

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 Matthieu Mayer's NPI number?

The NPI number for Matthieu Mayer is 1528564861. It was assigned to this individual provider in the NPPES registry on April 4, 2018.

Where is Matthieu Mayer located?

Matthieu Mayer practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. The listed phone number is (414) 805-3750.

What is Matthieu Mayer's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Matthieu Mayer enrolled in Medicare?

Yes. Matthieu Mayer 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.

Which organizations bill Medicare for Matthieu Mayer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthieu Mayer reassigns Medicare benefits to 15 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI), Gundersen Lutheran Medical Center Inc (Elm Grove, WI), Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI), Gundersen Clinic, Ltd. (Prairie Du Chien, WI), Moundview Memorial Hospital & Clinics, Inc. (Westfield, WI) and 10 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthieu Mayer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthieu Mayer accept?

Health plans from Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Matthieu Mayer 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 Matthieu Mayer affiliated with any hospitals?

According to CMS data, Matthieu Mayer is affiliated with Gundersen Palmer Lutheran Hospital And Clinics, St Elizabeth Medical Center, Gundersen Lutheran Medical Center, Gundersen Tri-County Hospital & Clinics and Gundersen Boscobel Area Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Matthieu Mayer was last updated on May 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.