Dr. Jeffrey Gronkiewicz, M.D.
What this data tells you about Dr. Gronkiewicz
Dr. Jeffrey Gronkiewicz is a radiation oncology in Lakeland, FL, with 17 years in practice. Based on federal Medicare data, Dr. Gronkiewicz performed 4,895 Medicare services across 2,399 unique beneficiaries.
Between the years covered by Open Payments, Dr. Gronkiewicz received a total of $23 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. Gronkiewicz 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.
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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) | 2,415 | $0 | $0 |
| Chest X-ray, 1 view | 443 | $7 | $34 |
| CT scan of head/brain, without contrast | 163 | $29 | $160 |
| Knee X-ray, 3 views | 100 | $6 | $36 |
| Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | 99 | $19 | $112 |
| Ct scan of chest with contrast | 89 | $39 | $231 |
| Ct scan of upper spine without contrast | 85 | $33 | $202 |
| Ct scan of blood vessels of chest with contrast | 78 | $66 | $344 |
| Diagnostic mammography of both breasts | 65 | $31 | $180 |
| Limited ultrasound scan of 1 breast | 64 | $21 | $144 |
| X-ray of abdomen, 1 view | 63 | $6 | $34 |
| Ct scan of blood vessels of neck with contrast | 54 | $61 | $329 |
| Ct scan of blood vessels of head with contrast | 52 | $64 | $331 |
| X-ray of knee, 1-2 views | 52 | $6 | $35 |
| Ct scan of abdomen and pelvis without contrast | 52 | $62 | $329 |
| X-ray of knee, 4 or more views | 51 | $8 | $46 |
| X-ray of lower and sacral spine, 2-3 views | 50 | $7 | $89 |
| Ct scan of lower spine without contrast | 48 | $31 | $187 |
| CT scan of chest, without contrast | 46 | $39 | $192 |
| X-ray of hand, minimum of 3 views | 43 | $5 | $32 |
| X-ray of ankle, minimum of 3 views | 42 | $6 | $34 |
| X-ray of lower and sacral spine, minimum of 4 views | 37 | $8 | $60 |
| X-ray of thigh bone, minimum 2 views | 36 | $7 | $35 |
| Diagnostic mammography of 1 breast | 36 | $20 | $176 |
| Mri scan of lower spinal canal without contrast | 34 | $156 | $710 |
| Ct scan of middle spine without contrast | 32 | $35 | $187 |
| X-ray of pelvis, 1-2 views | 30 | $6 | $33 |
| X-ray of wrist, minimum of 3 views | 29 | $5 | $34 |
| Ct scan of leg without contrast | 28 | $33 | $187 |
| Limited ultrasound scan of abdomen | 27 | $20 | $110 |
| Complete ultrasound scan behind abdominal cavity | 27 | $27 | $137 |
| Mri scan of leg joint without contrast | 24 | $134 | $724 |
| Shoulder X-ray, 2+ views | 23 | $29 | $82 |
| Review by radiologist of ct guidance for needle placement | 23 | $56 | $207 |
| X-ray of foot, 2 views | 19 | $7 | $31 |
| Complete ultrasound scan of abdomen | 19 | $29 | $157 |
| Mri scan of arm joint without contrast | 18 | $164 | $731 |
| Foot X-ray, 3+ views | 18 | $10 | $39 |
| Imaging for evaluation of swallowing function | 18 | $18 | $90 |
| X-ray of elbow, minimum of 3 views | 17 | $6 | $34 |
| Bone density scan (DEXA) | 17 | $39 | $87 |
| Chest X-ray, 2 views | 16 | $19 | $62 |
| CT scan of abdomen and pelvis with contrast | 16 | $263 | $764 |
| X-ray of both hips, 2 views | 15 | $9 | $44 |
| X-ray of lower leg, 2 views | 15 | $6 | $32 |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 15 | $10 | $48 |
| X-ray of upper spine, 2-3 views | 14 | $7 | $44 |
| Mri scan of upper spinal canal without contrast | 14 | $52 | $278 |
| X-ray of pelvis, minimum of 3 views | 13 | $10 | $43 |
| Hip X-ray, 2-3 views | 13 | $30 | $111 |
| Mri scan of leg before and after contrast | 13 | $81 | $406 |
| 3D screening mammography (tomosynthesis) | 13 | $52 | $122 |
| Screening mammography | 13 | $125 | $291 |
| Ultrasound of both sides of head and neck blood flow | 13 | $28 | $149 |
| Ct scan of face without contrast | 12 | $28 | $160 |
| X-ray of middle spine, 2 views | 12 | $6 | $44 |
| X-ray of hip, 1 view | 11 | $7 | $35 |
| Ultrasound scan of head and neck soft tissue | 11 | $76 | $267 |
Industry Payment Transparency
Open Payments through 2020 ↗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 (2020)
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
4.3 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 2020 |
| 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. Gronkiewicz is a mixed practice specialist, with moderate Medicare volume, and low-engagement industry engagement, with 17 years of practice experience.
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. Gronkiewicz experienced with contrast dye for imaging (iodine-based)?
Does Dr. Gronkiewicz receive payments from pharmaceutical companies?
How do Dr. Gronkiewicz's costs compare to other radiation oncologys in Lakeland?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
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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