Medicare Enrolled

Dr. Hyewon Hyun, M.D.

Radiation Oncology · Cambridge, MA
Practice pattern: Cardiac Imaging — Practice with significant diagnostic imaging and stress testing
330 MOUNT AUBURN ST, Cambridge, MA 02138
6174995070
Registered in NPPES since 2006
NPI: 1063587889 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. Hyun 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. Hyun

Dr. Hyewon Hyun is a radiation oncology specialist in Cambridge, MA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Hyun performed 1,178 Medicare services in 2023. These records do not provide a deduplicated patient total.

The Data Coverage level for Dr. Hyun is High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 19 years of NPI registration ▲ 1,178 Medicare services

Medicare Practice Summary — 2023

Medicare Utilization ↗
1,178
Medicare services
Bottom 25% in MA for radiation oncology
Lower Medicare volume may reflect subspecialty focus, hospital-based work, or a higher share of non-Medicare patients.
Not available
Unique patients (not deduplicated)
$79
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →

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
Nuclear medicine scan from skull base to mid-thigh with CT
A nuclear medicine imaging study covering the area from the base of the skull to the middle of the thighs, performed alongside a CT scan.
 625 $89 $562
Whole body nuclear medicine scan with CT
A combined imaging procedure using nuclear medicine and CT scans to visualize the entire body.
 289 $88 $512
Whole body bone and joint nuclear medicine scan
A nuclear medicine imaging test that uses a radioactive tracer to create pictures of the entire skeleton and joints. This scan helps evaluate bone health and detect abnormalities throughout the body.
 126 $30 $171
Radioactive drug therapy through a vein
Administration of a radioactive medication directly into the bloodstream via an intravenous line.
 73 $73 $389
SPECT/CT scan, single area
A nuclear medicine imaging study that combines single-photon emission computed tomography (SPECT) with a concurrent CT scan to create detailed images of a single body area.
 28 $56 $281
Nuclear medicine stomach emptying study
A nuclear medicine test used to assess how quickly the stomach empties its contents.
 14 $29 $154
Lymphatic system nuclear medicine study
A nuclear medicine imaging test used to evaluate the structure and function of the lymphatic system.
 12 $43 $231
Bone scan with multiple time points
A nuclear medicine imaging test that captures images of the bones at various intervals to assess bone health and detect abnormalities.
 11 $40 $197
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. These counts do not measure clinical quality or years of experience.
Looking for a radiation oncology specialist in Cambridge?
Compare radiation oncologists in the Cambridge area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Radiation oncologists in nearby ZIP areas
1,055
County median income
$126,779
Nearest hospital to ZIP centroid (approximate)
MOUNT AUBURN HOSPITAL
0.0 mi

Data Sources

Provider Registry ✓ NPPES NPPES snapshot; verify current record
Medicare Enrollment ✓ PECOS PECOS snapshot
Practice Data ✓ Medicare Util. Annual (CY lag)
Industry Payments — No payments N/A
Disciplinary History — Not included N/A

This provider has data in 3 of 4 available federal datasets, with a Data Coverage level of High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Hyun is a cardiac imaging specialist, with moderate Medicare volume, with 19 years of NPI registration.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Hyun experienced with nuclear medicine scan from skull base to mid-thigh with ct?
Based on Medicare claims data, Dr. Hyun performed 625 nuclear medicine scan from skull base to mid-thigh with ct services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
How do Dr. Hyun's costs compare to other radiation oncologists in Cambridge?
Dr. Hyun's average Medicare payment per service is $79. 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. Hyun) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →

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About this page

This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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. Data Coverage reflects 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. Industry payment disclosure alone establishes neither wrongdoing nor legality. 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 →