Medicare Enrolled

Dr. Jeffrey Walker, MD

Radiation Oncology · San Antonio, TX
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
333 N SANTA ROSA ST, San Antonio, TX 78207
2107042467
In practice since 2007 (18 years)
NPI: 1205036316 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. Walker 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. Walker

Dr. Jeffrey Walker is a radiation oncology specialist in San Antonio, TX, with 18 years of NPI registration. Based on federal Medicare data, Dr. Walker performed 4,160 Medicare services across 4,036 unique beneficiaries.

The Data Coverage level for Dr. Walker 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.

✓ 18 years in practice ▲ Top 22% volume in TX

Medicare Practice Summary

Medicare Utilization ↗
4,160
Medicare services
Top 22% in TX for radiation oncology
4,036
Unique beneficiaries
$22
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~231 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
Chest X-ray, 1 view 1,642 $7 $129
CT scan of head/brain, without contrast 382 $30 $487
Chest X-ray, 2 views 219 $7 $156
Mri scan of brain without contrast 200 $52 $844
CT scan of abdomen and pelvis with contrast 135 $64 $1,241
Ct scan of abdomen and pelvis without contrast 124 $62 $1,251
Ct scan of blood vessels of neck with contrast 105 $60 $1,179
Ct scan of upper spine without contrast 105 $35 $595
Ct scan of blood vessels of head with contrast 104 $63 $981
X-ray of abdomen, 1 view 97 $7 $131
Hip X-ray, 2-3 views 79 $8 $198
X-ray of knee, 1-2 views 75 $6 $125
Shoulder X-ray, 2+ views 72 $7 $130
Knee X-ray, 3 views 68 $7 $115
Mri scan of brain before and after contrast 59 $80 $1,301
Ct scan of lower spine without contrast 52 $34 $542
Foot X-ray, 3+ views 44 $6 $107
Ct scan of blood vessels of chest with contrast 43 $63 $1,289
CT scan of chest, without contrast 42 $38 $633
Limited ultrasound scan of abdomen 36 $18 $364
X-ray of hand, minimum of 3 views 34 $5 $110
Ultrasound study of one arm or leg veins with compression and maneuvers 33 $16 $418
Ct scan of face without contrast 30 $30 $579
X-ray of wrist, minimum of 3 views 29 $6 $104
Complete ultrasound scan behind abdominal cavity 29 $27 $469
Mri scan of upper spinal canal without contrast 27 $50 $813
X-ray of ankle, minimum of 3 views 26 $6 $105
X-ray of lower and sacral spine, 2-3 views 25 $8 $158
X-ray of pelvis, 1-2 views 22 $6 $121
X-ray of abdomen, 2 views 22 $8 $170
Mri scan of middle spinal canal without contrast 19 $48 $845
X-ray of elbow, minimum of 3 views 19 $6 $105
Ct scan of chest with contrast 17 $42 $642
X-ray of thigh bone, minimum 2 views 16 $7 $139
X-ray of ribs on side of body, minimum of 3 views 15 $9 $133
Ct scan of middle spine without contrast 15 $29 $584
X-ray of upper arm, minimum of 2 views 15 $5 $105
Ct scan of pelvis without contrast 14 $40 $632
X-ray of lower leg, 2 views 13 $6 $103
Ct scan of leg without contrast 12 $34 $548
Ultrasound of both sides of head and neck blood flow 12 $29 $753
X-ray of upper spine, 2-3 views 11 $8 $158
Mri scan of lower spinal canal without contrast 11 $54 $862
Mri scan of lower spinal canal before and after contrast 11 $84 $1,295
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
CHILDREN'S HOSPITAL OF SAN ANTONIO
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. Walker is a mixed practice specialist, with above-average Medicare volume (top 22% in TX), with 18 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. Walker experienced with chest x-ray, 1 view?
Based on Medicare claims data, Dr. Walker performed 1,642 chest x-ray, 1 view 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. Walker's costs compare to other radiation oncologists in San Antonio?
Dr. Walker'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. Walker) 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 →