Medicare Enrolled
Dr. Chanh Nguyen, M.D.
Radiation Oncology · Fresno, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 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. Nguyen 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. Nguyen
Dr. Chanh Nguyen is a radiation oncology specialist in Fresno, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Nguyen performed 5,000 Medicare services across 2,383 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nguyen received a total of $1,036 from 11 pharmaceutical and/or device companies across 23 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiation oncology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Nguyen is Very 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.
✓ 18 years in practice
▲ Top 30% volume in CA
$1,036 industry payments
Medicare Practice Summary
Medicare Utilization ↗5,000
Medicare services
Top 30% in CA for radiation oncology
2,383
Unique beneficiaries
$28
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~278 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) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
2,056 | $0 | $1 |
| Chest X-ray, 1 view An X-ray image of the chest taken from a single angle. This imaging test is used to visualize the structures within the chest cavity. |
851 | $7 | $37 |
| Midazolam injection, per 1 mg Administration of midazolam hydrochloride, a sedative medication, measured in 1 mg increments. |
151 | $0 | $10 |
| Abdominal fluid drainage with imaging guidance Removal of fluid from the abdominal cavity using imaging technology to guide the procedure. |
143 | $81 | $519 |
| Ultrasound guidance for blood vessel access Use of ultrasound imaging to help locate and access a blood vessel. This guidance assists healthcare providers in performing procedures such as inserting IV lines or drawing blood. |
143 | $11 | $63 |
| Chest fluid aspiration with imaging guidance This procedure involves removing fluid from the chest cavity using imaging technology to guide the needle placement. |
121 | $83 | $1,000 |
| CT scan of heart for calcium evaluation A CT scan of the heart used to evaluate calcium levels in the blood vessels. |
71 | $86 | $400 |
| Injection, methylprednisolone acetate, 40 mg | 65 | $6 | $21 |
| MRI contrast dye injection (gadobutrol) | 60 | $0 | $1 |
| Cefazolin sodium injection, 500 mg An injection of 500 mg of cefazolin sodium, an antibiotic medication, administered into the body. |
57 | $1 | $10 |
| Bone marrow biopsy and aspiration A procedure to remove a small sample of bone marrow and liquid for laboratory testing. The sample is analyzed to help diagnose various medical conditions. |
51 | $54 | $220 |
| Insertion of tunneled central venous catheter for infusion, age 5+ A surgical procedure to place a long-term catheter into a large vein for delivering medications or fluids. The catheter is tunneled under the skin to reduce infection risk and provide stable access for patients aged 5 and older. |
50 | $191 | $1,308 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
50 | $73 | $161 |
| CT scan of neck blood vessels with contrast A computed tomography scan that uses dye to visualize the blood vessels in the neck. This imaging test helps examine the structure and flow within the neck's vascular system. |
45 | $63 | $350 |
| Low osmolar contrast material, 100-199 mg/ml iodine concentration, per ml | 44 | $1 | $6 |
| Radiologist review of CT-guided needle placement A radiologist reviews the CT imaging used to guide the placement of a needle. |
42 | $55 | $275 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
40 | $42 | $166 |
| Core needle biopsy of lung or mediastinum A procedure to remove a small tissue sample from the lung or the space between the lungs using a needle inserted through the skin. |
39 | $116 | $1,400 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
39 | $102 | $252 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
37 | $94 | $371 |
| Injection, fentanyl citrate, 0.1 mg | 37 | $1 | $8 |
| CT scan of chest blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the chest. |
33 | $66 | $384 |
| Ultrasound of arm and leg arteries This procedure uses sound waves to create images of the blood vessels in the arms and legs. It allows healthcare providers to examine the structure and blood flow within these arteries. |
33 | $9 | $51 |
| Central venous port insertion A surgical procedure to place a small reservoir under the skin for long-term access to the bloodstream. The device is connected to a vein to allow for repeated medication administration or blood draws. |
32 | $260 | $2,439 |
| Injection into lower spine canal with imaging guidance A procedure where a substance is injected into the lower part of the spinal canal. The injection is performed using imaging guidance to ensure accurate placement. |
32 | $206 | $784 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
32 | $70 | $485 |
| Radiologist review of additional artery image A radiologist reviews an additional image of an artery. This step involves professional interpretation of the imaging data. |
29 | $37 | $370 |
| Insertion of non-tunneled central venous catheter A procedure to place a central venous catheter for infusion in patients aged 5 years or older. The catheter is inserted directly into a large vein without being tunneled under the skin. |
28 | $66 | $1,045 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
28 | $25 | $92 |
| Lumbar puncture with imaging guidance A procedure to remove spinal fluid from the lower back for diagnostic testing, performed using imaging guidance. |
27 | $68 | $530 |
| CT scan of head/brain, without contrast A CT scan uses X-rays to create detailed images of the head or brain without the use of contrast dye. |
27 | $28 | $275 |
| Fluoroscopic guidance for needle placement Use of real-time X-ray imaging to guide the precise placement of a needle during a medical procedure. |
27 | $98 | $246 |
| 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. |
23 | $24 | $98 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
23 | $37 | $113 |
| Radiologist review of abdominal artery image A radiologist reviews images of the arteries in the abdomen to assess their structure and function. |
23 | $75 | $312 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
22 | $43 | $275 |
| Additional sedation, per 15 minutes Administration of a drug to deepen sedation during a procedure. This code covers each additional 15-minute increment of sedation beyond the initial period. |
21 | $9 | $36 |
| Kidney tube placement with imaging guidance A tube is placed into the kidney using imaging guidance. A radiologist reviews the procedure. |
19 | $168 | $1,690 |
| CT scan of abdominal and pelvic blood vessels with contrast A computed tomography scan that uses contrast dye to visualize the blood vessels in the abdomen and pelvis. |
18 | $83 | $707 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
17 | $82 | $295 |
| Arterial catheter insertion, initial third order branch Insertion of a tube into an abdominal, pelvic, or leg artery, specifically targeting the initial third order branch. |
16 | $110 | $1,288 |
| Artery or vein bleeding occlusion with radiologist review A procedure to stop bleeding in an artery or vein, including review by a radiologist. |
16 | $512 | $10,000 |
| Liver needle biopsy through skin A procedure in which a needle is inserted through the skin to remove a small sample of liver tissue for examination. |
16 | $56 | $384 |
| Needle biopsy of abdominal cavity growth A needle is inserted into a growth within the abdominal cavity to remove a small tissue sample for laboratory analysis. |
16 | $65 | $350 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
16 | $117 | $909 |
| Ankle X-ray, minimum 3 views An X-ray imaging test of the ankle that captures at least three different angles to evaluate the bones and joints. |
16 | $6 | $35 |
| Foot X-ray, 3+ views An X-ray imaging test of the foot that captures at least three different views to evaluate the bones and joints. |
16 | $6 | $35 |
| Swallowing function imaging Imaging used to evaluate how well a person can swallow. This procedure visualizes the swallowing process to assess function. |
16 | $20 | $106 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
16 | $46 | $447 |
| Fluoroscopic guidance for central vein access device Use of live X-ray imaging to guide the placement or removal of a central vein access device. |
16 | $86 | $223 |
| Chest fluid drainage with tube insertion using imaging guidance This procedure removes fluid from the chest cavity and places a tube to stay in place for ongoing drainage. Imaging guidance is used to help position the tube accurately. |
14 | $104 | $1,400 |
| Removal of tunneled central venous tube This procedure involves the removal of a catheter that has been surgically placed under the skin and threaded into a large vein. |
14 | $100 | $567 |
| Hemodialysis circuit intervention with balloon dilation A procedure to insert a needle or tube into a hemodialysis circuit and dilate the dialysis segment using a balloon, with radiological review. |
14 | $170 | $1,950 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
14 | $80 | $358 |
| Fluoroscopic guidance for spine or back muscle injection This procedure uses real-time X-ray imaging to guide the placement of a needle for an injection into the spine or back muscles. |
14 | $23 | $114 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
14 | $152 | $759 |
| Removal of central venous port or pump A procedure to remove a central venous access device, such as a port or pump, from the body. |
13 | $132 | $785 |
| Transvaginal pelvic ultrasound An ultrasound exam using a probe inserted into the vagina to image the uterus, ovaries, fallopian tubes, cervix, and surrounding pelvic structures. |
12 | $95 | $297 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
12 | $77 | $297 |
| Vena cava filter insertion with radiologist review A procedure to place a filter in the vena cava to prevent blood clots from traveling to the lungs, including review by a radiologist. |
11 | $147 | $5,500 |
| 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. |
11 | $61 | $294 |
| 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. |
11 | $20 | $86 |
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.
1.9% high complexity
70.1% medium
28.0% routine
Industry Payment Transparency
Open Payments through 2023 ↗$1,036
Total received (2018-2023)
Avg $173/year across 6 years
Top 24% in CA for radiation oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
11
Companies
23
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$1,036 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2023
$348
2022
$45
2021
$140
2020
$66
2019
$198
2018
$239
Payments by company (2023)
Consulting
Speaking
Meals & Travel
Research
Inari Medical, Inc.
$152
Terumo Medical Corporation
$136
Boston Scientific Corporation
$61
Top 3 companies account for 100.0% of 2023 payments
All-time payments by company (2018-2023) ›
Inari Medical, Inc.
$234
Terumo Medical Corporation
$226
Ethicon US, LLC
$163
Stryker Corporation
$94
Sirtex Medical Inc
$91
Boston Scientific Corporation
$61
Janssen Scientific Affairs, LLC
$55
Penumbra, Inc.
$42
BOSTON SCIENTIFIC CORPORATION
$42
W. L. Gore & Associates, Inc.
$14
Siemens Medical Solutions USA, Inc.
$14
Top 3 companies account for 60.1% of all-time payments
Associated products mentioned in payments ›
AUTOPLEX · AZUR · CERTUS 140 MICROWAVE ABLATION SYSTEM · DARZALEX · FLOWTRIEVER CATHETER · GENERAL EMBOLICS · INTERLOCK · IVS - IVAS · IVS - VERTEBRAL AUGMENTATION PRODUCTS · Indigo System · MAGNETOM Altea · METACROSS OTW · OBSIDIO · S · SIR-Spheres Microspheres · VIABAHN Endoprosthesis with PROPATEN Bioactive Surface
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Radiation oncologists within 10 mi
65
Per 100K population
6.4
County median income
$71,434
Nearest hospital
SAINT AGNES MEDICAL CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2023 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Nguyen is a mixed practice specialist, with above-average Medicare volume (top 30% in CA), with low-engagement industry engagement, with 18 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. Nguyen experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Nguyen performed 2,056 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.
Does Dr. Nguyen receive payments from pharmaceutical companies?
Yes. Dr. Nguyen received a total of $1,036 from 11 companies across 23 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Nguyen's costs compare to other radiation oncologists in Fresno?
Dr. Nguyen's average Medicare payment per service is $28. 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 Very High for Dr. Nguyen) 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 ↗, Open Payments ↗, 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.
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