Medicare Enrolled
Dr. Karl Chiang, MD
Vascular & Interventional Radiology Physician · Greenville, NC
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Chiang 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 →
Are you Dr. Chiang?
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What this data tells you about Dr. Chiang
Dr. Karl Chiang is a vascular & interventional radiology physician in Greenville, NC, with 20 years of NPI registration. Based on federal Medicare data, Dr. Chiang performed 1,854 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Chiang received a total of $1,685 from 21 pharmaceutical and/or device companies across 63 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Chiang 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.
✓ 20 years of NPI registration
▲ Top 39% volume in NC
$1,685 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗1,854
Medicare services
Top 39% in NC for vascular & interventional radiology physician
Not available
Unique patients (not deduplicated)
$21
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 |
|---|---|---|---|
| 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. |
590 | $8 | $35 |
| 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. |
542 | $7 | $30 |
| 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. |
182 | $10 | $39 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
80 | $7 | $30 |
| Radiologist review of CT-guided needle placement A radiologist reviews the CT imaging used to guide the placement of a needle. |
65 | $54 | $160 |
| 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. |
48 | $11 | $49 |
| 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. |
47 | $14 | $54 |
| 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. |
34 | $9 | $40 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
26 | $51 | $259 |
| 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. |
25 | $196 | $860 |
| Abdominal fluid drainage by tube with imaging guidance A procedure to remove fluid from the abdominal cavity using a tube. Imaging guidance is used to direct the placement of the tube. |
23 | $133 | $645 |
| 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. |
22 | $58 | $238 |
| 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. |
20 | $7 | $29 |
| Hip X-ray, 2-3 views An X-ray imaging test of the hip joint using two to three different angles to visualize the bones and surrounding structures. |
20 | $8 | $34 |
| 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. |
20 | $68 | $264 |
| 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. |
16 | $253 | $1,040 |
| 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. |
15 | $101 | $426 |
| 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. |
14 | $62 | $268 |
| X-ray of thigh bone, minimum 2 views An X-ray imaging test of the thigh bone using at least two different angles to visualize the bone structure. |
14 | $7 | $28 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
14 | $60 | $252 |
| 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. |
13 | $113 | $417 |
| Kidney tube placement through new skin access A radiologist places a tube into the kidney and urinary tract using imaging guidance through a new incision in the skin. |
12 | $202 | $827 |
| Radiologist review of stomach or bowel tube placement A radiologist reviews medical images to confirm the correct placement of a tube in the stomach or large bowel. |
12 | $27 | $109 |
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.
1.3% high complexity
11.5% medium
87.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$1,685
Total received (2018-2024)
Avg $241/year across 7 years
Top 43% in NC for vascular & interventional radiology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
21
Companies
63
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$493
2023
$136
2022
$114
2021
$83
2020
$135
2019
$222
2018
$501
Payments by company (2024)
Medtronic, Inc.
$301
Boston Scientific Corporation
$118
AngioDynamics, Inc.
$20
Teleflex LLC
$19
Bard Peripheral Vascular, Inc.
$18
Terumo Medical Corporation
$16
Top 3 companies account for 89.3% of 2024 payments
All-time payments by company (2018-2024) ›
Medtronic, Inc.
$379
Medtronic USA, Inc.
$309
Merit Medical Systems Inc
$162
Teleflex LLC
$153
AngioDynamics, Inc.
$135
Boston Scientific Corporation
$118
Terumo Medical Corporation
$49
Lilly USA, LLC
$46
ARGON MEDICAL DEVICES, INC.
$40
Penumbra, Inc.
$38
Dova Pharmaceuticals
$38
Cardinal Health 200 LLC
$35
Cook Medical LLC
$33
MicroVention, Inc.
$24
CARDIVA MEDICAL, INC.
$24
QAPEL MEDICAL INC
$19
DePuy Synthes Sales Inc.
$18
Bard Peripheral Vascular, Inc.
$18
Novartis Pharmaceuticals Corporation
$17
Siemens Medical Solutions USA, Inc.
$15
Taiho Oncology, Inc.
$14
Top 3 companies account for 50.4% of all-time payments
Associated products mentioned in payments ›
AFINITOR · ALPHAVAC · ARROW · AXIUM PRIMETM · AZUR CX DETACHABLE · Azur CX Detachable · BALLOON CATHETER · CONCERTOTM · CYRAMZA · Cook Medical Embolization · Denali Vena Cava Filter · Doptelet · EMBOLD Fibered · EMPRINT · HYDROPEARL · Interventional Products · KYPHON Balloon Kyphoplasty · KYPHON EXPRESS II KYPHOPAK TRAY · Lonsurf · MynxGrip Vascular Closure Device · OBSIDIO · OPTION · OSTEOCOOL RF ABLATION · OSTEOCOOL RF ABLATION SYSTEM · OnControl · OnControl Bone Marrow Biopsy Trays · PIPELINE · Penumbra System · Retrieval Kit · SMART PORT CT · SOLITAIRE X · Solitaire · Spectra · TheraSphere Administration Set · Varian CRYOCARE TOUCH System · Vascular Closure Device
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Vascular & interventional radiology physicians in nearby ZIP areas
7
County median income
$58,851
Nearest hospital to ZIP centroid (approximate)
ECU HEALTH MEDICAL CENTER
0.0 mi
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 | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Chiang is a mixed practice specialist, with moderate Medicare volume, with 20 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. Chiang experienced with chest x-ray, 2 views?
Based on Medicare claims data, Dr. Chiang performed 590 chest x-ray, 2 views services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Chiang receive payments from pharmaceutical companies?
Yes. Dr. Chiang received a total of $1,685 from 21 companies across 63 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Chiang's costs compare to other vascular & interventional radiology physicians in Greenville?
Dr. Chiang's average Medicare payment per service is $21. 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. Chiang) 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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Which NC vascular & interventional radiology physicians receive the most from drug and device companies.
By company
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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 ↗, 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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