Dr. John Barkley, M.D.
What this data tells you about Dr. Barkley
Dr. John Barkley is a radiation oncology specialist in Austin, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Barkley performed 14,777 Medicare services across 3,086 unique beneficiaries.
Between the years covered by Open Payments, Dr. Barkley received a total of $612 from 8 pharmaceutical and/or device companies across 14 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. Barkley 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 |
|---|---|---|---|
| MRI contrast dye injection (gadobutrol) | 7,550 | $0 | $1 |
| Contrast dye for imaging (iodine-based) | 3,890 | $0 | $1 |
| Chest X-ray, 1 view | 1,191 | $7 | $134 |
| Chest X-ray, 2 views | 496 | $14 | $61 |
| 3D screening mammography (tomosynthesis) | 139 | $28 | $177 |
| Screening mammography | 138 | $35 | $263 |
| CT scan of abdomen and pelvis with contrast | 113 | $119 | $629 |
| Mri scan of abdomen before and after contrast | 109 | $177 | $1,163 |
| Ct scan of chest with contrast | 106 | $57 | $266 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 84 | $16 | $418 |
| Mri scan of pelvis before and after contrast | 69 | $168 | $1,127 |
| Bone density scan (DEXA) | 66 | $9 | $185 |
| CT scan of chest, without contrast | 50 | $62 | $263 |
| X-ray of pelvis, 1-2 views | 48 | $6 | $121 |
| Review by radiologist of ct guidance for needle placement | 44 | $53 | $842 |
| Ct scan of blood vessels of chest with contrast | 42 | $64 | $1,291 |
| Limited ultrasound scan of abdomen | 39 | $22 | $382 |
| Blood creatinine level | 38 | $5 | $21 |
| 3d radiographic procedure | 35 | $7 | $96 |
| Complete ultrasound scan behind abdominal cavity | 30 | $27 | $469 |
| Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) | 27 | $22 | $212 |
| Biopsy and aspiration of bone marrow sample for diagnosis | 26 | $53 | $1,301 |
| X-ray of lower and sacral spine, 2-3 views | 26 | $20 | $90 |
| Ct scan of abdomen and pelvis without contrast | 25 | $88 | $550 |
| Shoulder X-ray, 2+ views | 23 | $7 | $133 |
| X-ray of knee, 1-2 views | 23 | $6 | $128 |
| X-ray of lower and sacral spine, minimum of 4 views | 21 | $14 | $119 |
| Ultrasonic guidance for needle placement | 20 | $23 | $364 |
| X-ray of abdomen, 1 view | 19 | $10 | $51 |
| Ultrasound of one side of head and neck blood flow | 19 | $18 | $271 |
| Imaging for evaluation of swallowing function | 18 | $20 | $255 |
| Diagnostic mammography of 1 breast | 18 | $30 | $284 |
| X-ray of thigh bone, minimum 2 views | 16 | $7 | $147 |
| Mri scan of abdomen without contrast | 16 | $54 | $823 |
| Ultrasound of both sides of head and neck blood flow | 16 | $29 | $753 |
| Mri scan of pelvis without contrast | 15 | $116 | $734 |
| X-ray of forearm, 2 views | 15 | $6 | $105 |
| Hip X-ray, 2-3 views | 15 | $10 | $148 |
| Foot X-ray, 3+ views | 15 | $6 | $110 |
| Aspiration of fluid from chest cavity using imaging guidance | 14 | $83 | $2,137 |
| Low dose ct scan of chest for lung cancer screening | 14 | $94 | $340 |
| Ultrasound scan of head and neck soft tissue | 14 | $21 | $347 |
| X-ray of upper spine, 2-3 views | 13 | $21 | $79 |
| X-ray of wrist, minimum of 3 views | 13 | $7 | $110 |
| Limited ultrasound scan of 1 breast | 13 | $26 | $388 |
| X-ray of ankle, minimum of 3 views | 12 | $7 | $116 |
| Ct scan of blood vessels of abdomen and pelvis with contrast | 12 | $81 | $1,637 |
| X-ray of upper spine, 4-5 views | 11 | $25 | $114 |
| Knee X-ray, 3 views | 11 | $17 | $98 |
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. Barkley is a mixed practice specialist, with above-average Medicare volume (top 5% in TX), 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. Barkley experienced with mri contrast dye injection (gadobutrol)?
Does Dr. Barkley receive payments from pharmaceutical companies?
How do Dr. Barkley's costs compare to other radiation oncologists in Austin?
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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