Medicare Enrolled
Dr. John Clement, M.D., PH.D.
Radiation Oncology · San Antonio, 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. Clement 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. Clement
Dr. John Clement is a radiation oncology specialist in San Antonio, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Clement performed 9,707 Medicare services across 5,320 unique beneficiaries.
The Data Coverage level for Dr. Clement 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.
✓ 20 years in practice
▲ Top 8% volume in TX
Medicare Practice Summary
Medicare Utilization ↗9,707
Medicare services
Top 8% in TX for radiation oncology
5,320
Unique beneficiaries
$22
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~485 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 |
|---|---|---|---|
| MRI contrast dye injection (gadoterate) Administration of gadoterate meglumine, a contrast agent, in a 0.1 ml dose. |
3,400 | $0 | $0 |
| Chest X-ray, 1 view An X-ray image of the chest taken from a single angle. This imaging test is used to visualize the structures within the chest cavity. |
1,791 | $6 | $35 |
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
570 | $0 | $0 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
447 | $20 | $104 |
| CT scan of upper spine, without contrast A CT scan uses X-rays to create detailed images of the upper spine. This procedure is performed without the use of contrast dye. |
389 | $34 | $206 |
| MRI of leg joint, without contrast A magnetic resonance imaging scan of a joint in the leg performed without the use of contrast dye. |
305 | $142 | $1,546 |
| CT scan of head/brain, without contrast A CT scan uses X-rays to create detailed images of the head or brain without the use of contrast dye. |
302 | $29 | $164 |
| MRI of arm joint, without contrast An MRI scan uses magnetic fields and radio waves to create detailed images of the arm joint. This specific procedure is performed without the use of a contrast dye. |
184 | $146 | $1,582 |
| MRI of lower spine, without contrast A magnetic resonance imaging scan of the lower spinal canal that does not use contrast dye to create detailed images of the spine. |
115 | $144 | $1,603 |
| X-ray of thigh bone, minimum 2 views An X-ray imaging test of the thigh bone using at least two different angles to visualize the bone structure. |
96 | $6 | $37 |
| Hip X-ray, 2-3 views An X-ray imaging test of the hip joint using two to three different angles to visualize the bones and surrounding structures. |
94 | $29 | $125 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
90 | $21 | $92 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
89 | $1 | $54 |
| Knee X-ray, 1-2 views An X-ray imaging test of the knee joint using one to two different angles to visualize the bones and surrounding structures. |
83 | $21 | $84 |
| Fluoroscopic guidance for needle placement Use of real-time X-ray imaging to guide the precise placement of a needle during a medical procedure. |
83 | $84 | $232 |
| CT scan of pelvis, without contrast A CT scan that uses X-rays to create detailed images of the pelvic area without the use of contrast dye. |
78 | $37 | $211 |
| X-ray of lower leg, 2 views An X-ray imaging test of the lower leg using two different angles to visualize the bones and surrounding structures. |
67 | $5 | $33 |
| X-ray of hand, minimum of 3 views An X-ray imaging test of the hand that captures at least three different angles to visualize the bones and joints. |
63 | $23 | $86 |
| X-ray of upper arm, minimum of 2 views An X-ray imaging test of the upper arm that captures at least two different views to evaluate the bones and surrounding structures. |
58 | $6 | $33 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
57 | $48 | $211 |
| X-ray of lower and sacral spine, 2-3 views An X-ray imaging test that captures 2 to 3 views of the lower back and sacral spine to visualize the bones and joints in this area. |
55 | $22 | $109 |
| X-ray of forearm, 2 views An X-ray imaging test of the forearm using two different angles to visualize the bones and surrounding structures. |
53 | $5 | $33 |
| Pelvis X-ray, 1-2 views An X-ray imaging test of the pelvic area using one to two different angles to visualize the bones and joints. |
52 | $6 | $34 |
| Foot X-ray, 3+ views An X-ray imaging test of the foot that captures at least three different views to evaluate the bones and joints. |
48 | $21 | $86 |
| Elbow X-ray, minimum 3 views An X-ray imaging test of the elbow joint that captures at least three different angles to visualize the bones and surrounding structures. |
43 | $6 | $34 |
| MRI of leg, without contrast A magnetic resonance imaging scan of the leg performed without the use of contrast dye to visualize internal structures. |
43 | $158 | $1,578 |
| Knee X-ray, 3 views An X-ray imaging test of the knee joint that captures three different angles to evaluate the bones and surrounding structures. |
42 | $24 | $93 |
| X-ray of both hips, 3-4 views An X-ray imaging test that captures 3 to 4 views of both hip joints to visualize the bones and surrounding structures. |
34 | $32 | $148 |
| Ultrasound-guided large joint aspiration or injection This procedure uses ultrasound imaging to guide the removal of fluid from or the injection of medication into a large joint. |
33 | $66 | $292 |
| X-ray of middle spine, 2 views An X-ray imaging test that produces two views of the middle section of the spine to visualize the bones and joints. |
33 | $18 | $107 |
| Rib X-ray, minimum 3 views An X-ray imaging test of the ribs on one side of the body. The procedure includes a minimum of three different views to capture detailed images. |
31 | $9 | $53 |
| CT scan of middle spine, without contrast A CT scan of the middle spine performed without the use of contrast dye. This imaging test uses X-rays to create detailed pictures of the vertebrae and surrounding structures. |
31 | $35 | $194 |
| Elbow X-ray, 2 views An X-ray imaging test of the elbow joint using two different angles to visualize the bones and surrounding structures. |
30 | $5 | $31 |
| Wrist X-ray, 2 views An X-ray imaging test of the wrist using two different angles to visualize the bones and joints. |
30 | $5 | $34 |
| Wrist X-ray, minimum 3 views An imaging test using X-rays to capture at least three different angles of the wrist bones and joints. |
28 | $27 | $92 |
| CT scan of leg, without contrast A computed tomography scan of the leg performed without the use of contrast dye. This imaging test uses X-rays to create detailed cross-sectional images of the leg's internal structures. |
28 | $93 | $780 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
28 | $41 | $510 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
27 | $8 | $43 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
27 | $65 | $353 |
| CT scan of chest blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the chest. |
26 | $61 | $352 |
| MRI of pelvis, without contrast A magnetic resonance imaging scan of the pelvic area performed without the use of contrast dye. |
26 | $154 | $1,508 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
25 | $36 | $226 |
| X-ray of upper spine, 2-3 views An X-ray imaging test of the upper spine using two to three different angles to visualize the bones and structures. |
25 | $24 | $102 |
| Injection into lower spine canal with imaging guidance A procedure where a substance is injected into the lower part of the spinal canal. The injection is performed using imaging guidance to ensure accurate placement. |
24 | $194 | $748 |
| Technetium Tc-99m medronate diagnostic injection An injection of Technetium Tc-99m medronate used for diagnostic imaging studies. The dose administered is up to 30 millicuries per study. |
24 | $31 | $40 |
| X-ray of lower and sacral spine, minimum of 4 views An X-ray imaging test of the lower back and sacrum using at least four different angles to visualize the bones and joints. |
23 | $39 | $151 |
| Ankle X-ray, minimum 3 views An X-ray imaging test of the ankle that captures at least three different angles to evaluate the bones and joints. |
23 | $26 | $86 |
| MRI of middle spinal canal, without contrast This procedure uses magnetic resonance imaging to create detailed pictures of the middle section of the spinal canal. It is performed without the use of contrast dye. |
22 | $112 | $1,623 |
| CT scan of leg with contrast A CT scan of the leg using contrast material to enhance the visibility of internal structures. |
22 | $42 | $226 |
| X-ray of both hips, minimum of 5 views An X-ray imaging test that captures at least five different views of both hip joints to evaluate bone structure and alignment. |
21 | $32 | $172 |
| X-ray of ankle, 2 views An X-ray imaging test of the ankle using two different angles to visualize the bones and joints. |
21 | $5 | $33 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
21 | $16 | $87 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
20 | $58 | $337 |
| Sacral spine nerve root injection with imaging guidance An injection of anesthetic and/or steroid medication into a sacral spine nerve root. The procedure uses imaging guidance to ensure accurate placement. |
19 | $188 | $720 |
| Limited ultrasound of joint or extremity A focused ultrasound exam of a specific joint or other structure in the arm or leg, excluding blood vessels. |
19 | $27 | $175 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
19 | $24 | $133 |
| Tendon or ligament injection A procedure involving the injection of medication into a tendon or ligament. |
18 | $40 | $149 |
| X-ray of foot, 2 views An X-ray imaging test of the foot using two different angles to create pictures of the bones and joints. |
18 | $4 | $30 |
| Whole body bone and joint nuclear medicine scan A nuclear medicine imaging test that uses a radioactive tracer to create pictures of the entire skeleton and joints. This scan helps evaluate bone health and detect abnormalities throughout the body. |
18 | $205 | $679 |
| CT scan of face, without contrast A computed tomography scan that creates detailed images of the facial structures. This procedure is performed without the use of intravenous contrast dye. |
17 | $30 | $166 |
| MRI of upper spine without contrast An MRI scan of the upper spinal canal that does not use contrast dye. This imaging test uses magnetic fields and radio waves to create detailed pictures of the spine. |
17 | $137 | $1,516 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
17 | $21 | $111 |
| X-ray of finger, minimum of 2 views An X-ray imaging test of a finger using at least two different angles to visualize the bones and surrounding structures. |
16 | $5 | $27 |
| CT scan of arm, without contrast A CT scan of the arm that uses X-rays to create detailed images of the arm's internal structures without the use of contrast dye. |
16 | $106 | $803 |
| Limited abdominal ultrasound A focused ultrasound examination of the abdomen to evaluate specific organs or areas. This procedure uses sound waves to create images of internal structures. |
16 | $22 | $114 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
16 | $38 | $157 |
| X-ray of middle spine, 3 views An X-ray imaging test that captures three different views of the middle section of the spine to evaluate its structure. |
15 | $22 | $117 |
| Hip X-ray, 1 view An X-ray image of the hip joint taken from a single angle to visualize the bones and surrounding structures. |
14 | $7 | $37 |
| Ultrasound scan of chest An imaging test that uses sound waves to create pictures of the structures inside the chest. |
14 | $21 | $105 |
| X-ray of sacrum and tailbone, minimum of 2 views An X-ray imaging test of the sacrum and tailbone using at least two different angles to visualize the bones. |
13 | $17 | $91 |
| CT scan of lower spine, without contrast A computed tomography scan that creates detailed images of the lower spine using X-rays without the use of contrast dye. |
12 | $88 | $836 |
| Rib X-ray, 2 views An X-ray imaging test of the ribs on one side of the body using two different angles. |
11 | $26 | $99 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
11 | $19 | $86 |
| Double contrast esophagram An X-ray of the esophagus using two types of contrast material to create detailed images of the upper digestive tract. |
11 | $70 | $330 |
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
245
Per 100K population
12.0
County median income
$70,571
Nearest hospital
UNIVERSITY HEALTH SYSTEM
0.0 mi
0.0 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. Clement is a mixed practice specialist, with above-average Medicare volume (top 8% in TX), 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. Clement experienced with mri contrast dye injection (gadoterate)?
Based on Medicare claims data, Dr. Clement performed 3,400 mri contrast dye injection (gadoterate) 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. Clement's costs compare to other radiation oncologists in San Antonio?
Dr. Clement's average Medicare payment per service is $22. 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. Clement) 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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