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
8401 DATAPOINT DR, San Antonio, TX 78229
2106167700
In practice since 2006 (20 years)
NPI: 1376519223 verify on NPPES ↗
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) 3,400 $0 $0
Chest X-ray, 1 view 1,791 $6 $35
Contrast dye for imaging (iodine-based) 570 $0 $0
Chest X-ray, 2 views 447 $20 $104
Ct scan of upper spine without contrast 389 $34 $206
Mri scan of leg joint without contrast 305 $142 $1,546
CT scan of head/brain, without contrast 302 $29 $164
Mri scan of arm joint without contrast 184 $146 $1,582
Mri scan of lower spinal canal without contrast 115 $144 $1,603
X-ray of thigh bone, minimum 2 views 96 $6 $37
Hip X-ray, 2-3 views 94 $29 $125
Shoulder X-ray, 2+ views 90 $21 $92
Steroid injection (triamcinolone) 89 $1 $54
X-ray of knee, 1-2 views 83 $21 $84
Fluoroscopic guidance for needle placement 83 $84 $232
Ct scan of pelvis without contrast 78 $37 $211
X-ray of lower leg, 2 views 67 $5 $33
X-ray of hand, minimum of 3 views 63 $23 $86
X-ray of upper arm, minimum of 2 views 58 $6 $33
Joint injection, major joint 57 $48 $211
X-ray of lower and sacral spine, 2-3 views 55 $22 $109
X-ray of forearm, 2 views 53 $5 $33
X-ray of pelvis, 1-2 views 52 $6 $34
Foot X-ray, 3+ views 48 $21 $86
X-ray of elbow, minimum of 3 views 43 $6 $34
Mri scan of leg without contrast 43 $158 $1,578
Knee X-ray, 3 views 42 $24 $93
X-ray of both hips, 3-4 views 34 $32 $148
Aspiration and/or injection of fluid large joint using ultrasound guidance 33 $66 $292
X-ray of middle spine, 2 views 33 $18 $107
X-ray of ribs on side of body, minimum of 3 views 31 $9 $53
Ct scan of middle spine without contrast 31 $35 $194
X-ray of elbow, 2 views 30 $5 $31
X-ray of wrist, 2 views 30 $5 $34
X-ray of wrist, minimum of 3 views 28 $27 $92
Ct scan of leg without contrast 28 $93 $780
Ultrasonic guidance for needle placement 28 $41 $510
X-ray of knee, 4 or more views 27 $8 $43
CT scan of abdomen and pelvis with contrast 27 $65 $353
Ct scan of blood vessels of chest with contrast 26 $61 $352
Mri scan of pelvis without contrast 26 $154 $1,508
CT scan of chest, without contrast 25 $36 $226
X-ray of upper spine, 2-3 views 25 $24 $102
Injection of substance into lower spine canal using imaging guidance 24 $194 $748
Technetium tc-99m medronate, diagnostic, per study dose, up to 30 millicuries 24 $31 $40
X-ray of lower and sacral spine, minimum of 4 views 23 $39 $151
X-ray of ankle, minimum of 3 views 23 $26 $86
Mri scan of middle spinal canal without contrast 22 $112 $1,623
Ct scan of leg with contrast material 22 $42 $226
X-ray of both hips, minimum of 5 views 21 $32 $172
X-ray of ankle, 2 views 21 $5 $33
Ultrasound study of one arm or leg veins with compression and maneuvers 21 $16 $87
Ct scan of abdomen and pelvis without contrast 20 $58 $337
Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 19 $188 $720
Limited ultrasound scan of joint or other extremity structure except blood vessels 19 $27 $175
Ultrasound study of arm or leg veins with compression and maneuvers 19 $24 $133
Injection into tendon or ligament 18 $40 $149
X-ray of foot, 2 views 18 $4 $30
Nuclear medicine study of bone and/or joint whole body 18 $205 $679
Ct scan of face without contrast 17 $30 $166
Mri scan of upper spinal canal without contrast 17 $137 $1,516
Limited ultrasound scan behind abdominal cavity 17 $21 $111
X-ray of finger, minimum of 2 views 16 $5 $27
Ct scan of arm without contrast 16 $106 $803
Limited ultrasound scan of abdomen 16 $22 $114
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 16 $38 $157
X-ray of middle spine, 3 views 15 $22 $117
X-ray of hip, 1 view 14 $7 $37
Ultrasound scan of chest 14 $21 $105
X-ray of sacrum and tailbone, minimum of 2 views 13 $17 $91
Ct scan of lower spine without contrast 12 $88 $836
X-ray of ribs on side of body, 2 views 11 $26 $99
X-ray of abdomen, 1 view 11 $19 $86
Double contrast x-ray of esophagus 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.
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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

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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →