Dr. Jun F. Sun, M.D.
Hematology & Oncology (Hematology & Oncology Physician)
8926 Woodyard Rd Ste 201
Clinton, MD 20735
Who else practices at this address →
Prince George's County includes primary care (19% of residents) and mental health (13% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- State University of New York at Buffalo School of Medicine (2005)
- Years since graduation
- 21
- In the NPI registry since
- 2008
- Medicare patients seen, 2024
- 954
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2005Medical school: State University of New York at Buffalo School of Medicine
- 2008Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Hematology & Oncology Physician primary
MD license D71785
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- University of MD Capital Region Medical Center Upper Marlboro, MD
- Luminis Health Doctors Community Medical Ctr, Inc Lanham, MD
- University of MD Charles Regional Medical Center La Plata, MD
Medical groups
- Maryland Oncology Hematology PA (104 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 954
- Services billed
- 233,651
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Injection, ferric carboxymaltose, 1 mg | 76,500 | 55 |
| Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 54,480 | 83 |
| Injection, iron sucrose, 1 mg | 24,200 | 44 |
| Injection, denosumab, 1 mg | 9,000 | 60 |
| Injection, aprepitant, 1 mg | 8,970 | 28 |
| Injection, pembrolizumab, 1 mg | 8,600 | 20 |
| Injection, oxaliplatin, 0.5 mg | 7,800 | 12 |
| Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg | 5,140 | 13 |
| Injection, dexamethasone sodium phosphate, 1 mg | 4,766 | 96 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 2,516 | 544 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Eliquis (apixaban) Other prescribers in Clinton, MD | 224 |
| Warfarin Sodium Other prescribers in Clinton, MD | 59 |
| Oxycodone Hcl Other prescribers in Clinton, MD | 47 |
| Lenalidomide | 46 |
| Pomalyst (pomalidomide) | 39 |
| Xarelto (rivaroxaban) Other prescribers in Clinton, MD | 38 |
| Fondaparinux Sodium | 36 |
| Anastrozole Other prescribers in Clinton, MD | 32 |
| Acyclovir Other prescribers in Clinton, MD | 31 |
| Exemestane | 30 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 44 companies reported 114 payments worth $5,309 in total to this clinician.
| Karyopharm Therapeutics Inc. | $2,649 |
|---|---|
| Pfizer Inc. | $332 |
| Merck Sharp & Dohme LLC | $256 |
| Janssen Biotech, Inc. | $197 |
| AstraZeneca Pharmaceuticals LP | $165 |
| Genentech USA, Inc. | $133 |
| Novartis Pharmaceuticals Corporation | $126 |
| Daiichi Sankyo Inc. | $112 |
| Food and Beverage | $2,660 |
|---|---|
| Consulting Fee | $2,649 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Karyopharm Therapeutics Inc. Jan 7, 2025 | Consulting Fee XPOVIO · Oncology | $1,223 |
| Karyopharm Therapeutics Inc. Apr 17, 2025 | Consulting Fee XPOVIO · Oncology | $611 |
| Karyopharm Therapeutics Inc. Mar 6, 2025 | Consulting Fee XPOVIO · Oncology | $408 |
| Karyopharm Therapeutics Inc. Apr 3, 2025 | Consulting Fee XPOVIO · Oncology | $408 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 2 industry-funded studies in 2025, from 2 companies. The companies reported $2,500 in research payments for these studies, mostly to the institutions running them.
- Study to Compare Tivozanib in Combination With Nivolumab to Tivozanib Monotherapy in Subjects With Renal Cell Carcinoma
Aveo Pharmaceuticals, Inc. · Completed · NCT04987203 - Phase II Open Label, Study of IMMU-132 in Metastatic Urothelial Cancer After Failure of Platinum-Based Regimen or Anti-PD-1/PD-L1 Based Immunotherapy
Gilead Sciences, Inc.
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.