Medicare Enrolled
Dr. Yun Sun, M.D.
Internal Medicine · Greensboro, NC
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Sun 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. Sun?
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What this data tells you about Dr. Sun
Dr. Yun Sun is an internal medicine specialist in Greensboro, NC, with 20 years of NPI registration. Based on federal Medicare data, Dr. Sun performed 2,467 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Sun received a total of $9,985 from 58 pharmaceutical and/or device companies across 506 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. Sun 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 15% volume in NC
$9,985 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗2,467
Medicare services
Top 15% in NC for internal medicine
Not available
Unique patients (not deduplicated)
$30
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 |
|---|---|---|---|
| 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. |
348 | $80 | $227 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
180 | $8 | $11 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
168 | $0 | $1 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
166 | $8 | $14 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
164 | $10 | $18 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
153 | $13 | $28 |
| Drug screening test A laboratory test that uses a chemistry analyzer to detect the presence of drugs in a sample. |
130 | $61 | $120 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
115 | $29 | $61 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
112 | $10 | $18 |
| Parathyroid hormone level test A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones. |
97 | $40 | $85 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
88 | $16 | $30 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
87 | $9 | $16 |
| Total T3 thyroid hormone test A blood test that measures the total amount of triiodothyronine (T3) hormone in your body. T3 is a thyroid hormone that helps regulate metabolism and energy levels. |
83 | $14 | $25 |
| Ceftriaxone antibiotic injection This code represents the administration of ceftriaxone sodium, an antibiotic medication. The charge is calculated for every 250 mg of the drug administered. |
72 | $0 | $2 |
| 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. |
52 | $57 | $164 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
50 | $4 | $8 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
48 | $10 | $37 |
| Rheumatoid factor level | 43 | $6 | $12 |
| Definitive drug test using GC/MS or LC/MS A definitive drug test that identifies specific drugs and distinguishes between structural isomers using advanced methods like GC/MS or LC/MS. |
40 | $110 | $214 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
37 | $124 | $210 |
| Annual intensive behavioral therapy for cardiovascular disease, 15 minutes A yearly, in-person session focused on intensive behavioral therapy to help manage cardiovascular disease. The session lasts for 15 minutes and is conducted with the patient individually. |
30 | $25 | $55 |
| 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. |
29 | $65 | $200 |
| Smoking cessation counseling, 4-10 minutes A brief counseling session focused on helping patients quit smoking and tobacco use. The provider spends 4 to 10 minutes discussing strategies and support for cessation. |
26 | $14 | $30 |
| Annual alcohol misuse screening, 5 to 15 minutes | 26 | $18 | $39 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
23 | $9 | $25 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
19 | $3 | $6 |
| Quadrivalent influenza vaccine, cell culture-derived A flu shot that protects against four strains of the influenza virus. It is produced using cell culture technology rather than traditional egg-based methods. |
19 | $28 | $35 |
| Definitive drug test using GC/MS or LC/MS A definitive drug test that identifies specific drugs and distinguishes between structural isomers using advanced methods like GC/MS or LC/MS. |
19 | $153 | $303 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
17 | $27 | $37 |
| Hepatitis C antibody test A blood test that checks for antibodies to the hepatitis C virus. This test helps determine if a person has been exposed to the virus. |
14 | $14 | $46 |
| X-ray of lower and sacral spine, 2-3 views An X-ray imaging test that captures 2 to 3 views of the lower back and sacral spine to visualize the bones and joints in this area. |
12 | $25 | $85 |
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.
Industry Payment Transparency
Open Payments through 2024 ↗$9,985
Total received (2018-2024)
Avg $1,426/year across 7 years
Top 10% in NC for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
58
Companies
506
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
$1,308
2023
$1,289
2022
$972
2021
$1,122
2020
$922
2019
$2,108
2018
$2,264
Payments by company (2024)
Collegium Pharmaceutical, Inc.
$215
Novo Nordisk Inc
$181
Amgen Inc.
$157
Mylan Specialty L.P.
$97
Virtus Pharmaceuticals LLC
$94
Exact Sciences Corporation
$87
Lilly USA, LLC
$86
ABBVIE INC.
$66
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$63
Forte Bio-Pharma LLC
$39
Indivior Inc.
$35
Dexcom, Inc.
$34
Bayer Healthcare Pharmaceuticals Inc.
$30
Otsuka America Pharmaceutical, Inc.
$29
Boehringer Ingelheim Pharmaceuticals, Inc.
$23
PFIZER INC.
$21
Vanda Pharmaceuticals Inc.
$17
AstraZeneca Pharmaceuticals LP
$17
GlaxoSmithKline, LLC.
$16
Top 3 companies account for 42.2% of 2024 payments
All-time payments by company (2018-2024) ›
Novo Nordisk Inc
$1,541
Amgen Inc.
$904
AstraZeneca Pharmaceuticals LP
$847
Collegium Pharmaceutical, Inc.
$670
Lilly USA, LLC
$608
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$550
AbbVie Inc.
$499
Allergan Inc.
$484
Forte Bio-Pharma LLC
$278
Synergy Pharmaceuticals Inc
$250
PFIZER INC.
$223
Exact Sciences Corporation
$222
Takeda Pharmaceuticals U.S.A., Inc.
$172
SANOFI-AVENTIS U.S. LLC
$170
Biohaven Pharmaceuticals, Inc.
$170
Virtus Pharmaceuticals LLC
$142
Merck Sharp & Dohme Corporation
$140
ABBVIE INC.
$126
Otsuka America Pharmaceutical, Inc.
$117
GENZYME CORPORATION
$116
Indivior Inc.
$104
Sentynl Therapeutics, Inc.
$100
Dexcom, Inc.
$98
Mylan Specialty L.P.
$97
Genentech USA, Inc.
$90
Ironwood Pharmaceuticals, Inc
$89
Amarin Pharma Inc.
$86
Biohaven Pharmaceutical Holding Company Ltd.
$85
GlaxoSmithKline, LLC.
$82
Xeris Pharmaceuticals, Inc.
$75
IDORSIA PHARMACEUTICALS US INC
$72
FORTE BIO-PHARMA LLC
$62
BioDelivery Sciences International, Inc.
$61
Allergan, Inc.
$60
Boehringer Ingelheim Pharmaceuticals, Inc.
$52
Bayer HealthCare Pharmaceuticals Inc.
$48
Kowa Pharmaceuticals America, Inc.
$45
Abbott Laboratories
$45
ARBOR PHARMACEUTICALS, INC.
$41
Supernus Pharmaceuticals, Inc.
$37
Bayer Healthcare Pharmaceuticals Inc.
$30
Antares Pharma, Inc.
$24
Scilex Pharmaceuticals Inc.
$24
Medtronic, Inc.
$24
Esperion Therapeutics, Inc.
$21
Radius Health, Inc.
$21
Eisai Inc.
$21
Corcept Therapeutics
$20
GRT US Holding, Inc.
$20
Vanda Pharmaceuticals Inc.
$17
Shield Therapeutics Inc
$16
IRONWOOD PHARMACEUTICALS, INC
$16
Sun Pharmaceutical Industries Inc.
$14
Boston Scientific Corporation
$12
Horizon Pharma plc
$12
Teva Pharmaceuticals USA, Inc.
$12
ASSERTIO THERAPEUTICS, Inc.
$11
Janssen Biotech, Inc.
$11
Top 3 companies account for 33.0% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · AIRSUPRA · AJOVY · ANORO · Aimovig · Amitiza · BELBUCA · BELSOMRA · BOTOX COSMETIC · BREO · Belbuca · CHANTIX · COLOGUARD DNA CAPTURE REAGENTS · COMIRNATY · CREON · Cambia · Cologuard Collection Kit · DUPIXENT · DUZALLO · Dayvigo · Dexcom G6 Transmitter · EMGALITY · EUCRISA · FARXIGA · FREESTYLE LIBRE 2 · FreeStyle Lite system · GVOKE PFS · General - Pain Management · HETLIOZ · Horizant · ILUMYA · INTELLIS ADAPTIVESTIM · JANUVIA · JARDIANCE · Kerendia · Korlym · LEVORPHANOL TARTRATE · LINZESS · Levorphanol Tartrate · Linzess · MOTEGRITY · MOUNJARO · MOVANTIK · NALOCET · NEXLETOL · NOCDURNA · NO_PRODUCT · NURTEC ODT · Nalocet · Otezla · Ozempic · PNEUMOVAX 23 · PREMARIN · PREVNAR 20 · PROLATE · Prolia · QULIPTA · QUVIVIQ · Qutenza · RELISTOR · REXULTI · RYBELSUS · Repatha · Rybelsus · SOLIQUA · STELARA · SUBLOCADE · SYMBICORT · Saxenda · Seglentis · TOUJEO · TRELEGY ELLIPTA · TRINTELLIX · TROKENDI XR · TRULANCE · TRULICITY · Tresiba · Trintellix · Trulance · Tymlos · UBRELVY · VIBERZI · VRAYLAR · VYVANSE · Vascepa · Victoza · Wegovy · XIFAXAN · XIFAXANIBSD · XTAMPZA · XTAMPZAER · Xofluza · YUPELRI · ZTLido
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
Internal medicine physicians in nearby ZIP areas
557
County median income
$66,027
Nearest hospital to ZIP centroid (approximate)
MOSES H. CONE MEMORIAL HOSPITAL, THE
7.8 mi
7.8 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. Sun is a clinical cardiology specialist, with above-average Medicare volume (top 15% in NC), 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. Sun experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Sun performed 348 office visit, established patient (30-39 min) 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. Sun receive payments from pharmaceutical companies?
Yes. Dr. Sun received a total of $9,985 from 58 companies across 506 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. Sun's costs compare to other internal medicine physicians in Greensboro?
Dr. Sun's average Medicare payment per service is $30. 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. Sun) 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 ↗, 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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