Dr. Mark Preston, M.D., J.D.
What this data tells you about Dr. Preston
Dr. Mark Preston is a radiation oncology specialist in Indialantic, FL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Preston performed 38,128 Medicare services across 6,210 unique beneficiaries.
Between the years covered by Open Payments, Dr. Preston received a total of $132 from 5 pharmaceutical and/or device companies across 7 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. Preston is Very 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.
Florida License Status
FL DOH · MQA| Profession | License # | Status | Expires | Board Action |
|---|---|---|---|---|
| Medical Doctor | 72678 | Clear | January 31, 2027 | — |
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 |
|---|---|---|---|
| MRI contrast dye injection (gadoterate) | 16,310 | $0 | $1 |
| Contrast dye for imaging (iodine-based) | 15,701 | $0 | $1 |
| 3D screening mammography (tomosynthesis) | 882 | $51 | $164 |
| Screening mammography | 879 | $122 | $268 |
| Mri scan of lower spinal canal without contrast | 337 | $101 | $460 |
| Chest X-ray, 1 view | 235 | $7 | $69 |
| Bone density scan (DEXA) | 234 | $35 | $85 |
| Mri scan of leg joint without contrast | 210 | $102 | $445 |
| CT scan of chest, without contrast | 200 | $85 | $325 |
| Blood creatinine level | 184 | $5 | $10 |
| Chest X-ray, 2 views | 180 | $20 | $56 |
| Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | 165 | $37 | $164 |
| Mri scan of upper spinal canal without contrast | 145 | $93 | $467 |
| Diagnostic mammography of both breasts | 107 | $103 | $332 |
| Mri scan of brain without contrast | 96 | $97 | $480 |
| Mri scan of arm joint without contrast | 86 | $100 | $453 |
| Limited ultrasound scan of 1 breast | 83 | $78 | $245 |
| Ultrasound scan of head and neck soft tissue | 81 | $64 | $196 |
| Foot X-ray, 3+ views | 77 | $18 | $50 |
| X-ray of lower and sacral spine, 2-3 views | 75 | $23 | $64 |
| Complete ultrasound scan of abdomen | 72 | $62 | $211 |
| Ct scan of abdomen and pelvis without contrast | 70 | $131 | $384 |
| Hip X-ray, 2-3 views | 69 | $29 | $74 |
| Complete ultrasound scan of 1 breast | 66 | $83 | $260 |
| Nuclear medicine study from skull base to mid-thigh with ct scan | 65 | $89 | $868 |
| Low dose ct scan of chest for lung cancer screening | 63 | $112 | $272 |
| Ct scan of lower spine without contrast | 59 | $81 | $350 |
| Diagnostic mammography of 1 breast | 59 | $83 | $262 |
| Ct scan of abdomen and pelvis before and after contrast | 54 | $219 | $620 |
| Shoulder X-ray, 2+ views | 53 | $17 | $56 |
| Knee X-ray, 3 views | 53 | $23 | $63 |
| CT scan of abdomen and pelvis with contrast | 51 | $209 | $564 |
| Complete ultrasound scan behind abdominal cavity | 49 | $49 | $166 |
| X-ray of knee, 4 or more views | 48 | $23 | $65 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 47 | $78 | $214 |
| Mri scan of middle spinal canal without contrast | 44 | $103 | $435 |
| Mri scan of brain before and after contrast | 43 | $217 | $775 |
| Ct scan of leg without contrast | 42 | $86 | $344 |
| X-ray of lower and sacral spine, minimum of 4 views | 39 | $25 | $76 |
| Ct scan of heart with evaluation of blood vessel calcium | 39 | $70 | $150 |
| Ct scan of chest with contrast | 37 | $83 | $414 |
| Limited ultrasound scan behind abdominal cavity | 36 | $35 | $118 |
| X-ray of upper spine, 2-3 views | 34 | $23 | $55 |
| X-ray of knee, 1-2 views | 33 | $22 | $58 |
| CT scan of head/brain, without contrast | 32 | $63 | $245 |
| Mri scan of pelvis without contrast | 30 | $131 | $587 |
| Mri scan of abdomen before and after contrast | 30 | $252 | $915 |
| Complete ultrasound scan of pelvis | 30 | $52 | $175 |
| Ultrasound of both sides of head and neck blood flow | 30 | $113 | $321 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 30 | $102 | $306 |
| Ct scan of face without contrast | 28 | $68 | $305 |
| Ct scan of upper spine without contrast | 28 | $83 | $345 |
| Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | 28 | $55 | $173 |
| Mri scan of leg without contrast | 27 | $111 | $559 |
| X-ray of hand, minimum of 3 views | 26 | $18 | $44 |
| X-ray of ankle, minimum of 3 views | 25 | $17 | $54 |
| X-ray of abdomen, 1 view | 24 | $19 | $53 |
| Limited ultrasound scan of abdomen | 24 | $40 | $144 |
| Mri scan of lower spinal canal before and after contrast | 23 | $198 | $793 |
| Technetium tc-99m medronate, diagnostic, per study dose, up to 30 millicuries | 21 | $44 | $104 |
| X-ray of middle spine, 3 views | 18 | $27 | $68 |
| X-ray of wrist, minimum of 3 views | 17 | $23 | $71 |
| Ct scan of middle spine without contrast | 16 | $80 | $345 |
| Mri scan of pelvis before and after contrast | 16 | $258 | $899 |
| Ultrasound of leg arteries or artery grafts | 16 | $134 | $313 |
| Ct scan of blood vessels of chest with contrast | 15 | $168 | $583 |
| Limited ultrasound scan of joint or other extremity structure except blood vessels | 15 | $29 | $74 |
| X-ray of upper spine, 4-5 views | 14 | $25 | $67 |
| Nuclear medicine study of bone taken at different times | 14 | $244 | $699 |
| X-ray of ribs on side of body, minimum of 3 views | 13 | $30 | $70 |
| Ct scan of soft tissue of neck with contrast | 12 | $75 | $444 |
| Complete ultrasound of abdomen and pelvis artery and vein blood flow | 12 | $203 | $413 |
| X-ray lower and sacral spine, minimum of 6 views | 11 | $43 | $122 |
| Ct scan of pelvis without contrast | 11 | $87 | $307 |
Industry Payment Transparency
Open Payments through 2024 ↗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 (2024)
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
2.9 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 2024 |
| 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 measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Preston is a mixed practice specialist, with above-average Medicare volume (top 6% in FL), with low-engagement industry engagement, 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. Preston experienced with mri contrast dye injection (gadoterate)?
Does Dr. Preston receive payments from pharmaceutical companies?
How do Dr. Preston's costs compare to other radiation oncologists in Indialantic?
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Is this data up to date?
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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. 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.
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