Medicare Enrolled
Dr. Sion Carter, M.D.
Radiation Oncology · Zephyrhills, FL
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
High
DATA COVERAGE
Data in 3 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Carter from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Carter?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Carter
Dr. Sion Carter is a radiation oncology specialist in Zephyrhills, FL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Carter performed 20,967 Medicare services across 3,616 unique beneficiaries.
The Data Coverage level for Dr. Carter is High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice
▲ Top 11% volume in FL
Florida License Status
FL DOH · MQA1
Active license
None
Board action on record
0
Recent admin complaints
| Profession | License # | Status | Expires | Board Action |
|---|---|---|---|---|
| Medical Doctor | 59152 | Clear | January 31, 2028 | — |
Data from Florida Department of Health Medical Quality Assurance.
License records are public under Chapter 119, Florida Statutes.
Verify directly on FL DOH →
Medicare Practice Summary
Medicare Utilization ↗20,967
Medicare services
Top 11% in FL for radiation oncology
3,616
Unique beneficiaries
$13
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~1,048 Medicare services per year of practice
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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
15,894 | $0 | $1 |
| Gadobenate dimeglumine injection Administration of gadobenate dimeglumine, a contrast agent used to enhance imaging results. |
1,513 | $1 | $5 |
| 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. |
491 | $23 | $78 |
| 3D screening mammography (tomosynthesis) A screening imaging test of the breast using 3D technology to detect potential abnormalities. |
190 | $51 | $137 |
| Screening mammography An X-ray of the breast used to detect breast cancer in women who have no signs or symptoms of the disease. |
189 | $123 | $270 |
| 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. |
176 | $24 | $77 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
149 | $96 | $391 |
| X-ray of lower and sacral spine, minimum of 4 views An X-ray imaging test of the lower back and sacrum using at least four different angles to visualize the bones and joints. |
146 | $36 | $126 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
121 | $36 | $99 |
| X-ray of hand, minimum of 3 views An X-ray imaging test of the hand that captures at least three different angles to visualize the bones and joints. |
115 | $25 | $82 |
| 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. |
97 | $29 | $90 |
| 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. |
94 | $24 | $74 |
| 3D radiographic procedure with computerized image postprocessing A radiographic imaging procedure that creates three-dimensional images using computerized processing of the captured data. |
81 | $58 | $178 |
| 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. |
81 | $62 | $224 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
79 | $72 | $283 |
| Knee X-ray, 3 views An X-ray imaging test of the knee joint that captures three different angles to evaluate the bones and surrounding structures. |
76 | $27 | $92 |
| 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. |
73 | $33 | $105 |
| CT scan of leg, without contrast A computed tomography scan of the leg performed without the use of contrast dye. This imaging test uses X-rays to create detailed cross-sectional images of the leg's internal structures. |
70 | $88 | $397 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
64 | $133 | $496 |
| X-ray of middle spine, 3 views An X-ray imaging test that captures three different views of the middle section of the spine to evaluate its structure. |
60 | $28 | $94 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
54 | $44 | $146 |
| MRI of leg joint, without contrast A magnetic resonance imaging scan of a joint in the leg performed without the use of contrast dye. |
50 | $150 | $486 |
| Limited ultrasound of pelvis A focused ultrasound exam of the pelvic area to evaluate specific structures. This procedure provides images of the pelvis to assist in medical assessment. |
50 | $27 | $122 |
| MRI of lower spine, without contrast A magnetic resonance imaging scan of the lower spinal canal that does not use contrast dye to create detailed images of the spine. |
48 | $141 | $544 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
47 | $130 | $479 |
| X-ray of upper spine, 4-5 views An X-ray imaging test of the upper spine using 4 to 5 different views to visualize the bones and structures in that area. |
46 | $35 | $124 |
| Ankle X-ray, minimum 3 views An X-ray imaging test of the ankle that captures at least three different angles to evaluate the bones and joints. |
45 | $26 | $82 |
| CT scan of abdomen and pelvis with contrast A CT scan of the abdomen and pelvis using contrast dye before and after administration to visualize internal structures. |
42 | $260 | $884 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
42 | $75 | $300 |
| 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. |
41 | $235 | $783 |
| MRI of abdomen with and without contrast An MRI scan of the abdomen using contrast dye before and after administration to create detailed images of internal structures. |
35 | $251 | $980 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
35 | $77 | $297 |
| Digital breast tomosynthesis (3D mammogram) A specialized imaging test that creates three-dimensional pictures of the breast tissue to help detect abnormalities. |
34 | $40 | $137 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
32 | $34 | $102 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
30 | $101 | $483 |
| Ultrasound of arm and leg arteries A non-invasive imaging test that uses sound waves to examine the blood vessels in the arms and legs. It evaluates blood flow and checks for blockages or other vascular issues. |
30 | $82 | $329 |
| 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. |
29 | $72 | $286 |
| MRI of arm joint, without contrast An MRI scan uses magnetic fields and radio waves to create detailed images of the arm joint. This specific procedure is performed without the use of a contrast dye. |
28 | $143 | $573 |
| 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. |
28 | $134 | $496 |
| X-ray of both hips, 3-4 views An X-ray imaging test that captures 3 to 4 views of both hip joints to visualize the bones and surrounding structures. |
27 | $36 | $123 |
| MRI of pelvis with and without contrast A magnetic resonance imaging scan of the pelvic area performed both before and after the administration of a contrast dye to enhance image detail. |
26 | $264 | $979 |
| 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. |
25 | $98 | $342 |
| X-ray of sacroiliac joint, 3 or more views An X-ray imaging test that takes three or more pictures of the joint connecting the lower spine to the hip bone. |
25 | $28 | $86 |
| Limited ultrasound of 1 breast A focused ultrasound examination of a single breast to evaluate specific areas of concern. |
25 | $68 | $217 |
| MRI scan of brain, without contrast A magnetic resonance imaging test of the brain that does not use contrast dye. This procedure creates detailed images of the brain's structure using magnetic fields and radio waves. |
24 | $156 | $557 |
| Limited ultrasound of joint or extremity A focused ultrasound exam of a specific joint or other structure in the arm or leg, excluding blood vessels. |
24 | $33 | $143 |
| Low dose CT scan of chest for lung cancer screening A specialized CT scan of the chest using a lower radiation dose to screen for lung cancer. |
23 | $137 | $363 |
| MRI of brain with and without contrast An MRI scan of the brain using contrast dye both before and after administration to provide detailed images of brain structures. |
21 | $232 | $912 |
| MRI of upper spine without contrast An MRI scan of the upper spinal canal that does not use contrast dye. This imaging test uses magnetic fields and radio waves to create detailed pictures of the spine. |
21 | $135 | $544 |
| X-ray of upper spine, 6 or more views An X-ray imaging test of the upper spine using six or more separate views to capture detailed images of the bones and structures in that area. |
20 | $44 | $148 |
| Diagnostic mammography of both breasts | 20 | $116 | $335 |
| Injection, furosemide, up to 20 mg | 20 | $0 | $1 |
| Nuclear medicine scan from skull base to mid-thigh with CT A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan. |
18 | $1,175 | $3,579 |
| Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries | 18 | $401 | $1,278 |
| Ultrasound of abdominal aorta An imaging test that uses sound waves to create pictures of the abdominal aorta, the large blood vessel that carries blood from the heart to the lower body. |
17 | $102 | $278 |
| Rib X-ray, minimum 3 views An X-ray imaging test of the ribs on one side of the body. The procedure includes a minimum of three different views to capture detailed images. |
15 | $32 | $97 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
15 | $21 | $70 |
| X-ray of sacrum and tailbone, minimum of 2 views An X-ray imaging test of the sacrum and tailbone using at least two different angles to visualize the bones. |
14 | $19 | $75 |
| Elbow X-ray, minimum 3 views An X-ray imaging test of the elbow joint that captures at least three different angles to visualize the bones and surrounding structures. |
14 | $25 | $74 |
| Diagnostic mammography of 1 breast An X-ray examination of one breast to evaluate specific breast symptoms or abnormalities. |
14 | $93 | $266 |
| MRI of leg, without contrast A magnetic resonance imaging scan of the leg performed without the use of contrast dye to visualize internal structures. |
13 | $167 | $643 |
| 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. |
12 | $178 | $715 |
| Technetium Tc-99m medronate diagnostic injection An injection of Technetium Tc-99m medronate used for diagnostic imaging studies. The dose administered is up to 30 millicuries per study. |
11 | $33 | $112 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Geographic Context
Radiation oncologists within 10 mi
225
Per 100K population
38.2
County median income
$67,384
Nearest hospital
Adventhealth Zephyrhills
2.7 mi
2.7 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | — No payments | N/A |
| Disciplinary History | — Not public | N/A |
This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Carter is a mixed practice specialist, with above-average Medicare volume (top 11% in FL), with 20 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Carter experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Carter performed 15,894 contrast dye for imaging (iodine-based) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
How do Dr. Carter's costs compare to other radiation oncologists in Zephyrhills?
Dr. Carter's average Medicare payment per service is $13. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently High for Dr. Carter) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
Explore related providers
About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, 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. The Transparency Score measures 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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology