Medicare Enrolled
Dr. Luke Chambless, M.D.
Radiation Oncology · Granbury, TX
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. Chambless 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 →
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What this data tells you about Dr. Chambless
Dr. Luke Chambless is a radiation oncology specialist in Granbury, TX, with 12 years of NPI registration. Based on federal Medicare data, Dr. Chambless performed 22,702 Medicare services across 7,235 unique beneficiaries.
The Data Coverage level for Dr. Chambless 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.
✓ 12 years in practice
▲ Top 3% volume in TX
Medicare Practice Summary
Medicare Utilization ↗22,702
Medicare services
Top 3% in TX for radiation oncology
7,235
Unique beneficiaries
$8
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~1,892 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) | 12,325 | $0 | $0 |
| MRI contrast dye injection (gadoterate) | 2,800 | $0 | $0 |
| Chest X-ray, 1 view | 1,804 | $6 | $139 |
| CT scan of head/brain, without contrast | 391 | $28 | $503 |
| Ct scan of lower spine without contrast | 320 | $34 | $585 |
| Mri scan of lower spinal canal without contrast | 261 | $51 | $856 |
| Hip X-ray, 2-3 views | 259 | $8 | $213 |
| Mri scan of pelvis before and after contrast | 216 | $76 | $1,649 |
| Shoulder X-ray, 2+ views | 180 | $6 | $126 |
| X-ray of abdomen, 1 view | 172 | $6 | $138 |
| X-ray of lower and sacral spine, 2-3 views | 167 | $7 | $156 |
| Ct scan of upper spine without contrast | 146 | $33 | $621 |
| Foot X-ray, 3+ views | 146 | $5 | $105 |
| Knee X-ray, 3 views | 139 | $6 | $112 |
| Bone density scan (DEXA) | 130 | $9 | $189 |
| X-ray of knee, 1-2 views | 123 | $6 | $118 |
| X-ray of hand, minimum of 3 views | 108 | $6 | $105 |
| Limited ultrasound scan of abdomen | 105 | $20 | $377 |
| X-ray of wrist, minimum of 3 views | 103 | $6 | $107 |
| Ultrasound scan of head and neck soft tissue | 101 | $19 | $339 |
| Complete ultrasound scan behind abdominal cavity | 99 | $26 | $461 |
| Mri scan of upper spinal canal without contrast | 95 | $52 | $858 |
| Ct scan of middle spine without contrast | 94 | $35 | $614 |
| X-ray of knee, 4 or more views | 93 | $8 | $146 |
| Ct scan of blood vessels of head with contrast | 90 | $63 | $1,021 |
| Ct scan of blood vessels of neck with contrast | 87 | $59 | $1,228 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 87 | $15 | $424 |
| CT scan of chest, without contrast | 86 | $76 | $728 |
| X-ray of pelvis, 1-2 views | 83 | $6 | $121 |
| X-ray of ankle, minimum of 3 views | 77 | $6 | $115 |
| X-ray of upper spine, 2-3 views | 65 | $8 | $156 |
| Ultrasound of both sides of head and neck blood flow | 64 | $26 | $761 |
| Mri scan of brain without contrast | 61 | $53 | $858 |
| X-ray of lower and sacral spine, minimum of 4 views | 61 | $9 | $211 |
| Mri scan of middle spinal canal without contrast | 59 | $50 | $842 |
| X-ray of lower leg, 2 views | 58 | $6 | $107 |
| Ct scan of abdomen and pelvis without contrast | 57 | $101 | $1,365 |
| Ct scan of abdomen and pelvis before and after contrast | 53 | $187 | $2,094 |
| Nuclear medicine study from skull base to mid-thigh with ct scan | 53 | $82 | $1,557 |
| Mri scan of abdomen before and after contrast | 52 | $75 | $1,608 |
| CT scan of abdomen and pelvis with contrast | 50 | $152 | $1,517 |
| Ct scan of pelvis without contrast | 48 | $39 | $628 |
| Ultrasound of one leg arteries or artery grafts | 45 | $16 | $357 |
| X-ray of elbow, minimum of 3 views | 44 | $6 | $110 |
| X-ray of forearm, 2 views | 43 | $6 | $102 |
| Complete ultrasound scan of abdomen | 42 | $28 | $472 |
| X-ray of ribs on side of body, minimum of 3 views | 38 | $8 | $132 |
| X-ray of thigh bone, minimum 2 views | 38 | $6 | $147 |
| X-ray of middle spine, 3 views | 36 | $7 | $124 |
| Ct scan of leg without contrast | 35 | $35 | $563 |
| X-ray of middle spine, 2 views | 34 | $6 | $127 |
| Mri scan of brain before and after contrast | 29 | $84 | $1,304 |
| X-ray of upper arm, minimum of 2 views | 28 | $6 | $105 |
| Limited ultrasound scan behind abdominal cavity | 28 | $20 | $339 |
| Ultrasound of one side of head and neck blood flow | 27 | $16 | $269 |
| X-ray of foot, 2 views | 25 | $4 | $97 |
| X-ray of abdomen, 2 views | 24 | $8 | $174 |
| Ct scan of soft tissue of neck without contrast | 23 | $43 | $755 |
| Low dose ct scan of chest for lung cancer screening | 23 | $47 | $849 |
| Ct scan of soft tissue of neck with contrast | 22 | $44 | $769 |
| Ct scan of chest with contrast | 21 | $79 | $817 |
| X-ray of abdomen, minimum of 3 views | 21 | $10 | $210 |
| Mri scan of abdomen without contrast | 21 | $46 | $814 |
| Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | 21 | $19 | $408 |
| Chest X-ray, 2 views | 20 | $19 | $166 |
| X-ray of ribs on side of body, 2 views | 19 | $8 | $120 |
| Ct scan of arm without contrast | 19 | $34 | $550 |
| X-ray of both hips, 3-4 views | 19 | $10 | $227 |
| Ct scan of abdomen with contrast | 19 | $47 | $628 |
| Ct scan of abdomen before and after contrast | 19 | $46 | $679 |
| Ct scan of blood vessels of abdomen and pelvis with contrast | 19 | $68 | $1,637 |
| Ct scan of abdominal aorta and both leg arteries with contrast | 19 | $82 | $1,502 |
| Limited ultrasound scan of pelvis | 19 | $17 | $232 |
| X-ray of upper spine, 4-5 views | 18 | $8 | $198 |
| Ct scan of face without contrast | 17 | $64 | $706 |
| Ct scan of blood vessels of chest with contrast | 17 | $115 | $1,212 |
| X-ray of both hips, 2 views | 17 | $8 | $209 |
| Limited ultrasound scan of joint or other extremity structure except blood vessels | 17 | $24 | $355 |
| Mri scan of lower spinal canal before and after contrast | 16 | $79 | $1,295 |
| X-ray of hand, 2 views | 16 | $6 | $82 |
| X-ray of finger, minimum of 2 views | 16 | $5 | $91 |
| Screening mammography | 16 | $35 | $263 |
| X-ray of shoulder, 1 view | 15 | $6 | $105 |
| X-ray of elbow, 2 views | 15 | $6 | $98 |
| X-ray of ankle, 2 views | 15 | $6 | $105 |
| Mri scan of pelvis without contrast | 14 | $50 | $870 |
| X-ray of wrist, 2 views | 14 | $6 | $100 |
| Complete ultrasound scan of pelvis | 14 | $20 | $398 |
| Ct scan of head or brain before and after contrast | 13 | $45 | $653 |
| X-ray of sacrum and tailbone, minimum of 2 views | 11 | $6 | $102 |
| X-ray series of abdomen with single x-ray of chest | 11 | $12 | $194 |
| Ultrasound scan of scrotum | 11 | $18 | $377 |
| 3D screening mammography (tomosynthesis) | 11 | $28 | $177 |
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
12
Per 100K population
18.7
County median income
$86,802
Nearest hospital
LAKE GRANBURY MEDICAL CENTER
6.8 mi
6.8 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. Chambless is a mixed practice specialist, with above-average Medicare volume (top 3% in TX).
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. Chambless experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Chambless performed 12,325 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. Chambless's costs compare to other radiation oncologists in Granbury?
Dr. Chambless's average Medicare payment per service is $8. 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. Chambless) 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 →
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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.
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