Medicare Enrolled

Dr. Ping-Sun Chen, M.D.-PH.D

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
2107042372
In practice since 2007 (19 years)
NPI: 1992858328 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. Chen 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. Chen

Dr. Ping-Sun Chen is a radiation oncology specialist in San Antonio, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Chen performed 14,986 Medicare services across 2,191 unique beneficiaries.

The Data Coverage level for Dr. Chen 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.

✓ 19 years in practice ▲ Top 5% volume in TX

Medicare Practice Summary

Medicare Utilization ↗
14,986
Medicare services
Top 5% in TX for radiation oncology
2,191
Unique beneficiaries
$6
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~789 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) 7,184 $0 $2
MRI contrast dye injection (gadobutrol) 5,640 $0 $1
Chest X-ray, 1 view 466 $6 $33
Chest X-ray, 2 views 201 $13 $62
Ct scan of upper spine without contrast 115 $33 $238
Mri scan of lower spinal canal without contrast 68 $149 $522
Ct scan of blood vessels of chest with contrast 58 $60 $344
X-ray of abdomen, 1 view 55 $7 $33
CT scan of head/brain, without contrast 53 $54 $218
Foot X-ray, 3+ views 52 $19 $79
Mri scan of brain before and after contrast 48 $248 $775
Ct scan of blood vessels of neck with contrast 46 $58 $345
Ct scan of blood vessels of head with contrast 44 $61 $342
Shoulder X-ray, 2+ views 43 $14 $66
Mri scan of upper spinal canal without contrast 38 $132 $520
X-ray of lower and sacral spine, 2-3 views 37 $14 $70
Ct scan of lower spine without contrast 37 $33 $238
Mri scan of blood vessels of head without contrast 35 $44 $269
X-ray of hand, minimum of 3 views 35 $21 $87
Ct scan of abdomen and pelvis without contrast 30 $93 $319
Mri scan of blood vessels of neck without contrast 28 $40 $269
Ct scan of face without contrast 26 $28 $198
X-ray of knee, 1-2 views 26 $14 $63
Ultrasound study of arm or leg veins with compression and maneuvers 26 $24 $145
Knee X-ray, 3 views 25 $21 $84
X-ray of abdomen, 2 views 25 $16 $63
Mri scan of middle spinal canal without contrast 24 $52 $325
Mri scan of abdomen without contrast 24 $53 $272
X-ray of ribs on side of body, 2 views 23 $16 $63
Ct scan of chest with contrast 23 $36 $224
Hip X-ray, 2-3 views 23 $19 $80
Mri scan of leg without contrast 23 $48 $287
3D screening mammography (tomosynthesis) 23 $23 $62
CT scan of chest, without contrast 22 $93 $316
X-ray of upper spine, 2-3 views 21 $18 $73
Screening mammography 21 $82 $217
Ct scan of soft tissue of neck before and after contrast 19 $176 $523
Mri scan of lower spinal canal before and after contrast 19 $82 $418
Mri scan of brain without contrast 18 $150 $525
X-ray of wrist, minimum of 3 views 18 $19 $81
Ct scan of leg without contrast 18 $30 $189
Complete ultrasound scan behind abdominal cavity 18 $48 $204
Ultrasound of both sides of head and neck blood flow 18 $28 $169
X-ray of pelvis, 1-2 views 17 $6 $44
Mri scan of abdomen before and after contrast 16 $243 $796
Nuclear medicine study of lung circulation 16 $27 $140
Ct scan of middle spine without contrast 15 $35 $234
CT scan of abdomen and pelvis with contrast 15 $200 $660
Complete ultrasound scan of abdomen 15 $56 $225
X-ray of lower leg, 2 views 14 $6 $42
Mri scan of middle spinal canal before and after contrast 13 $82 $438
X-ray of elbow, minimum of 3 views 12 $6 $43
X-ray of ankle, minimum of 3 views 12 $16 $77
Limited ultrasound scan of abdomen 12 $19 $122
Low dose ct scan of chest for lung cancer screening 11 $132 $340
Mri scan of upper spinal canal before and after contrast 11 $82 $427
Ultrasound study of one arm or leg veins with compression and maneuvers 11 $70 $263
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. Chen is a mixed practice specialist, with above-average Medicare volume (top 5% in TX), with 19 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. Chen experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Chen performed 7,184 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. Chen's costs compare to other radiation oncologists in San Antonio?
Dr. Chen's average Medicare payment per service is $6. 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. Chen) 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 →