Medicare Enrolled

Dr. James Gilley, M.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: 1952378721 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. Gilley 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. Gilley

Dr. James Gilley is a radiation oncology specialist in San Antonio, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Gilley performed 6,136 Medicare services across 1,037 unique beneficiaries.

The Data Coverage level for Dr. Gilley 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 14% volume in TX

Medicare Practice Summary

Medicare Utilization ↗
6,136
Medicare services
Top 14% in TX for radiation oncology
1,037
Unique beneficiaries
$19
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~307 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.
 5,050 $0 $0
MRI of leg joint, without contrast
A magnetic resonance imaging scan of a joint in the leg performed without the use of contrast dye.
 352 $147 $1,546
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.
 110 $153 $1,582
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.
 70 $24 $104
MRI of pelvis, without contrast
A magnetic resonance imaging scan of the pelvic area performed without the use of contrast dye.
 53 $176 $1,558
Fluoroscopic guidance for needle placement
Use of real-time X-ray imaging to guide the precise placement of a needle during a medical procedure.
 51 $86 $232
Joint injection, major joint
Removal of fluid from a large joint and/or injection of medication into the joint space.
 39 $48 $204
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.
 37 $91 $803
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.
 36 $32 $125
Complete ultrasound of abdomen
A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen.
 36 $84 $377
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.
 34 $22 $84
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.
 29 $21 $92
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.
 28 $112 $803
MRI of leg, without contrast
A magnetic resonance imaging scan of the leg performed without the use of contrast dye to visualize internal structures.
 28 $169 $1,578
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.
 25 $31 $40
Ultrasound guidance for needle placement
Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure.
 24 $41 $510
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.
 23 $71 $299
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.
 22 $25 $109
Tendon or ligament injection
A procedure involving the injection of medication into a tendon or ligament.
 16 $41 $149
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.
 16 $26 $151
Abdominal X-ray, 1 view
An X-ray image of the abdomen taken from a single angle to visualize internal structures.
 16 $20 $86
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.
 15 $25 $102
MRI of leg joint with and without contrast
An MRI scan of a leg joint performed both before and after the administration of contrast dye to enhance image detail.
 14 $291 $2,127
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.
 12 $147 $1,603
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.
Looking for a radiation oncology specialist in San Antonio?
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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. Gilley is a mixed practice specialist, with above-average Medicare volume (top 14% 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. Gilley experienced with mri contrast dye injection (gadoterate)?
Based on Medicare claims data, Dr. Gilley performed 5,050 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. Gilley's costs compare to other radiation oncologists in San Antonio?
Dr. Gilley's average Medicare payment per service is $19. 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. Gilley) 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 →