Dr. Michael Mazza, MD
What this data tells you about Dr. Mazza
Dr. Michael Mazza is a radiation oncology specialist in Ann Arbor, MI, with 19 years of NPI registration. Based on federal Medicare data, Dr. Mazza performed 1,303 Medicare services across 1,277 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mazza received a total of $19 from 1 pharmaceutical and/or device company across 1 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiation oncology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Mazza is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| CT scan of head/brain, without contrast A CT scan uses X-rays to create detailed images of the head or brain without the use of contrast dye. |
202 | $29 | $247 |
| Chest X-ray, 1 view An X-ray image of the chest taken from a single angle. This imaging test is used to visualize the structures within the chest cavity. |
190 | $6 | $30 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
190 | $8 | $44 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
131 | $66 | $451 |
| CT scan of upper spine, without contrast A CT scan uses X-rays to create detailed images of the upper spine. This procedure is performed without the use of contrast dye. |
111 | $34 | $248 |
| CT scan of chest blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the chest. |
85 | $66 | $440 |
| Limited abdominal ultrasound A focused ultrasound examination of the abdomen to evaluate specific organs or areas. This procedure uses sound waves to create images of internal structures. |
48 | $21 | $111 |
| CT scan of head blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the head. |
42 | $62 | $391 |
| CT scan of neck blood vessels with contrast A computed tomography scan that uses dye to visualize the blood vessels in the neck. This imaging test helps examine the structure and flow within the neck's vascular system. |
41 | $61 | $391 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
34 | $66 | $401 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
31 | $41 | $286 |
| CT scan of middle spine, without contrast A CT scan of the middle spine performed without the use of contrast dye. This imaging test uses X-rays to create detailed pictures of the vertebrae and surrounding structures. |
25 | $34 | $267 |
| CT scan of lower spine, without contrast A computed tomography scan that creates detailed images of the lower spine using X-rays without the use of contrast dye. |
24 | $34 | $266 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
23 | $7 | $33 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
21 | $28 | $145 |
| Hip X-ray, 2-3 views An X-ray imaging test of the hip joint using two to three different angles to visualize the bones and surrounding structures. |
20 | $7 | $36 |
| CT scan of abdominal and pelvic blood vessels with contrast A computed tomography scan that uses contrast dye to visualize the blood vessels in the abdomen and pelvis. |
19 | $76 | $628 |
| CT scan of face, without contrast A computed tomography scan that creates detailed images of the facial structures. This procedure is performed without the use of intravenous contrast dye. |
14 | $31 | $173 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
14 | $7 | $39 |
| Foot X-ray, 3+ views An X-ray imaging test of the foot that captures at least three different views to evaluate the bones and joints. |
13 | $6 | $35 |
| Ultrasound of transplanted kidney An ultrasound scan of a transplanted kidney to visualize its structure and blood flow. This imaging test helps assess the health and function of the transplanted organ. |
13 | $29 | $157 |
| Wrist X-ray, minimum 3 views An imaging test using X-rays to capture at least three different angles of the wrist bones and joints. |
12 | $6 | $30 |
Industry Payment Transparency
Open Payments through 2018 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2018)
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2018 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Mazza is a mixed practice specialist, with moderate Medicare volume, with low-engagement industry engagement, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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