Medicare Enrolled

Dr. David Johnston, M.D.

Radiation Oncology · Plano, TX
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
3801 W 15TH ST STE C, Plano, TX 75075
9725964033
In practice since 2006 (19 years)
NPI: 1891734554 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. Johnston 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. Johnston

Dr. David Johnston is a radiation oncology specialist in Plano, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Johnston performed 9,190 Medicare services across 8,514 unique beneficiaries.

The Data Coverage level for Dr. Johnston 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 9% volume in TX

Medicare Practice Summary

Medicare Utilization ↗
9,190
Medicare services
Top 9% in TX for radiation oncology
8,514
Unique beneficiaries
$84
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~484 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
Screening mammography
An X-ray of the breast used to detect breast cancer in women who have no signs or symptoms of the disease.
 3,563 $116 $482
3D screening mammography (tomosynthesis)
A screening imaging test of the breast using 3D technology to detect potential abnormalities.
 3,561 $47 $183
Bone density scan (DEXA)
A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures.
 591 $38 $264
Digital breast tomosynthesis (3D mammogram)
A specialized imaging test that creates three-dimensional pictures of the breast tissue to help detect abnormalities.
 358 $39 $220
Diagnostic mammography of 1 breast
An X-ray examination of one breast to evaluate specific breast symptoms or abnormalities.
 357 $90 $511
Limited ultrasound of 1 breast
A focused ultrasound examination of a single breast to evaluate specific areas of concern.
 254 $64 $243
Diagnostic mammography of both breasts 184 $116 $649
Complete breast ultrasound, 1 breast
A complete ultrasound examination of one breast to visualize internal structures.
 97 $101 $447
Breast biopsy with ultrasound-guided localization device placement
This procedure involves taking a tissue sample from a breast growth and placing a marker device to locate it, guided by ultrasound imaging.
 72 $402 $2,385
Breast lesion localization with ultrasound guidance
A device is placed in the breast to mark a specific growth using ultrasound guidance. This procedure helps identify the exact location of the lesion for further treatment or removal.
 59 $295 $1,670
Breast biopsy with localization device using X-ray
A procedure to remove a sample of breast tissue for testing, using X-ray guidance to place a device that marks the location of the first growth.
 33 $400 $2,399
Breast lesion localization with imaging guidance
A device is placed in the breast to mark a specific area using imaging guidance. This helps locate the growth for further medical procedures.
 24 $173 $867
X-ray guided placement of soft tissue locating device, first growth
This procedure involves using X-ray imaging to guide the placement of a device used to locate soft tissue, specifically for the first growth.
 20 $239 $1,916
Needle biopsy or removal of surface lymph nodes
A procedure to obtain a tissue sample or remove lymph nodes located near the surface of the body using a needle.
 17 $72 $458
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 Plano?
Compare radiation oncologists in the Plano area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Radiation oncologists within 10 mi
586
Per 100K population
52.5
County median income
$117,588
Nearest hospital
MEDICAL CITY PLANO
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. Johnston is a mixed practice specialist, with above-average Medicare volume (top 9% 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. Johnston experienced with screening mammography?
Based on Medicare claims data, Dr. Johnston performed 3,563 screening mammography 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. Johnston's costs compare to other radiation oncologists in Plano?
Dr. Johnston's average Medicare payment per service is $84. 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. Johnston) 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 →