Dr. Brian Callahan, M.D.
What this data tells you about Dr. Callahan
Dr. Brian Callahan is a vascular & interventional radiology physician in Lackland A F B, TX, with 19 years in practice. Based on federal Medicare data, Dr. Callahan performed 3,348 Medicare services across 2,983 unique beneficiaries.
Between the years covered by Open Payments, Dr. Callahan received a total of $367 from 3 pharmaceutical and/or device companies across 18 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in vascular & interventional radiology physician. 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. Callahan 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 |
|---|---|---|---|
| Chest X-ray, 1 view | 582 | $6 | $29 |
| Chest X-ray, 2 views | 356 | $7 | $35 |
| Drainage of fluid from abdominal cavity using imaging guidance | 147 | $82 | $339 |
| Nuclear medicine study from skull base to mid-thigh with ct scan | 140 | $85 | $370 |
| CT scan of head/brain, without contrast | 130 | $26 | $144 |
| Fluoroscopic guidance for insertion or removal of central vein access device | 103 | $14 | $67 |
| Aspiration of fluid from chest cavity using imaging guidance | 98 | $84 | $352 |
| CT scan of abdomen and pelvis with contrast | 97 | $53 | $286 |
| Ct scan of abdomen and pelvis without contrast | 91 | $60 | $273 |
| Ultrasonic guidance for blood vessel access | 84 | $11 | $57 |
| Fine needle aspiration biopsy using ultrasound guidance, first growth | 83 | $55 | $320 |
| Knee X-ray, 3 views | 79 | $7 | $31 |
| CT scan of chest, without contrast | 66 | $32 | $183 |
| Shoulder X-ray, 2+ views | 61 | $6 | $29 |
| Foot X-ray, 3+ views | 61 | $5 | $28 |
| Hip X-ray, 2-3 views | 57 | $8 | $32 |
| Ct scan of chest with contrast | 56 | $36 | $200 |
| Insertion of central venous tube with port (5 years or older) | 50 | $265 | $1,042 |
| Bone density scan (DEXA) | 50 | $9 | $47 |
| Review by radiologist of ct guidance for needle placement | 47 | $56 | $200 |
| X-ray of hand, minimum of 3 views | 45 | $5 | $28 |
| X-ray of wrist, minimum of 3 views | 44 | $6 | $28 |
| Insertion of tunneled central venous tube for infusion (5 years or older) | 38 | $204 | $842 |
| Replacement of kidney drainage tube using imaging guidance with review by radiologist | 35 | $79 | $437 |
| Ct scan of blood vessels of chest with contrast | 35 | $49 | $192 |
| Fine needle aspiration biopsy using ultrasound guidance, each additional growth | 33 | $39 | $167 |
| Low dose ct scan of chest for lung cancer screening | 32 | $52 | $75 |
| X-ray of lower and sacral spine, minimum of 4 views | 31 | $8 | $50 |
| Complete ultrasound scan behind abdominal cavity | 31 | $24 | $116 |
| X-ray of lower and sacral spine, 2-3 views | 30 | $7 | $38 |
| Insertion of needle and/or tube into hemodialysis circuit with review by radiologist | 27 | $128 | $446 |
| X-ray of abdomen, 1 view | 27 | $6 | $29 |
| Removal of tunneled central venous tube | 26 | $106 | $431 |
| Limited ultrasound scan of abdomen | 26 | $17 | $94 |
| X-ray of hip, 1 view | 25 | $5 | $27 |
| Core needle biopsy of lung or center cavity of chest (mediastinum), accessed through skin | 24 | $112 | $448 |
| Imaging for evaluation of swallowing function | 24 | $21 | $87 |
| Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist | 23 | $174 | $690 |
| X-ray of ankle, minimum of 3 views | 23 | $6 | $28 |
| Ct scan of abdomen and pelvis before and after contrast | 22 | $70 | $318 |
| Ct scan of upper spine without contrast | 21 | $34 | $213 |
| X-ray of lower leg, 2 views | 21 | $6 | $28 |
| Complete ultrasound scan of abdomen | 20 | $28 | $128 |
| Replacement of tunneled central venous tube | 19 | $142 | $593 |
| X-ray of ribs on side of body, minimum of 3 views | 18 | $8 | $43 |
| Removal of central venous tube with port or pump | 17 | $143 | $600 |
| X-ray series of abdomen with single x-ray of chest | 17 | $11 | $50 |
| X-ray of pelvis, 1-2 views | 16 | $6 | $28 |
| Ultrasound scan of head and neck soft tissue | 16 | $18 | $88 |
| Nuclear medicine study whole body with ct scan | 16 | $91 | $382 |
| X-ray of finger, minimum of 2 views | 14 | $4 | $22 |
| X-ray of thigh bone, minimum 2 views | 14 | $6 | $27 |
| X-ray of knee, 1-2 views | 14 | $6 | $29 |
| Ct scan of face without contrast | 13 | $27 | $179 |
| X-ray of elbow, minimum of 3 views | 13 | $6 | $28 |
| Ultrasound scan of chest | 13 | $22 | $90 |
| Needle biopsy of liver through skin | 12 | $70 | $391 |
| Ct scan of blood vessels of abdomen and pelvis with contrast | 12 | $76 | $340 |
| Double contrast x-ray of upper digestive tract | 12 | $34 | $113 |
| X-ray of upper arm, minimum of 2 views | 11 | $5 | $28 |
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
6.2 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. Callahan is a mixed practice specialist, with above-average Medicare volume (top 15% in TX), and low-engagement industry engagement, with 19 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. Callahan experienced with chest x-ray, 1 view?
Does Dr. Callahan receive payments from pharmaceutical companies?
How do Dr. Callahan's costs compare to other vascular & interventional radiology physicians in Lackland A F B?
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology