Dr. Corey Casper, MD
Infectious Disease (Infectious Disease Physician)
Who else practices at this address →
King County includes primary care (5% of residents) and dental (4% of residents) and mental health (4% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 15
Licensed in Washington since 2000, according to the Washington State Department of Health. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
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
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
-
Infectious Disease Physician primary
WA license MD00038917 (first issued 2000; expired)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare patients and services
- Medicare patients, 2024
- 15
- Services billed
- 34
- Patients’ average age
- 72
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.
Payments from drug and device companies
In 2025, 2 companies reported 34 payments worth $37,627 in total to this clinician.
| Recordati_rare_diseases_inc. | $37,554 |
|---|---|
| Medtronic, Inc. | $73.42 |
| Honoraria | $31,875 |
|---|---|
| Travel and Lodging | $5,234 |
| Food and Beverage | $280 |
| Compensation for services other than consulting (speaking, faculty) | $238 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Recordati_rare_diseases_inc. Jan 23, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $5,750 |
| Recordati_rare_diseases_inc. Oct 8, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $4,875 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $4,750 |
| Recordati_rare_diseases_inc. Jun 18, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $4,750 |
| Recordati_rare_diseases_inc. Feb 16, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $3,750 |
| Recordati_rare_diseases_inc. Mar 28, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,500 |
| Recordati_rare_diseases_inc. Feb 16, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to SEATTLE, WA | $1,322 |
| Recordati_rare_diseases_inc. Jun 10, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,250 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,000 |
| Recordati_rare_diseases_inc. Jun 11, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,000 |
All 31 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Recordati_rare_diseases_inc. Dec 31, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to HOUSTON, TX | $229 |
| Recordati_rare_diseases_inc. Dec 9, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $750 |
| Recordati_rare_diseases_inc. Oct 11, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to LOPEZ ISLAND, WA | $223 |
| Recordati_rare_diseases_inc. Oct 9, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to LOPEZ ISLAND, WA | $241 |
| Recordati_rare_diseases_inc. Oct 8, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $4,875 |
| Recordati_rare_diseases_inc. Oct 8, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to GALVESTON, TX | $200 |
| Recordati_rare_diseases_inc. Oct 8, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to LOPEZ ISLAND, WA | $33.00 |
| Recordati_rare_diseases_inc. Sep 16, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,000 |
| Recordati_rare_diseases_inc. Aug 13, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to LOPEZ ISLAND, WA | $413 |
| Recordati_rare_diseases_inc. Jul 17, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,000 |
| Recordati_rare_diseases_inc. Jun 21, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to SEATTLE, WA | $374 |
| Recordati_rare_diseases_inc. Jun 20, 2025 | Compensation for services other than consulting (speaking, faculty) SYLVANT · ONCOLOGIC AGENT | $35.68 |
| Recordati_rare_diseases_inc. Jun 19, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to CHICAGO, IL | $473 |
| Recordati_rare_diseases_inc. Jun 18, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $4,750 |
| Recordati_rare_diseases_inc. Jun 11, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,000 |
| Recordati_rare_diseases_inc. Jun 10, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,250 |
| Recordati_rare_diseases_inc. Mar 28, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,500 |
| Recordati_rare_diseases_inc. Feb 16, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $3,750 |
| Recordati_rare_diseases_inc. Feb 16, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to SEATTLE, WA | $1,322 |
| Recordati_rare_diseases_inc. Feb 16, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to SEATTLE, WA | $154 |
| Recordati_rare_diseases_inc. Feb 16, 2025 | Compensation for services other than consulting (speaking, faculty) SYLVANT · ONCOLOGIC AGENT | $95.37 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $5,750 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $4,750 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $1,000 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to SEATTLE, WA | $682 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to SEATTLE, WA | $376 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to SEATTLE, WA | $299 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Travel and Lodging SYLVANT · ONCOLOGIC AGENT · travel to SEATTLE, WA | $215 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Compensation for services other than consulting (speaking, faculty) SYLVANT · ONCOLOGIC AGENT | $53.91 |
| Recordati_rare_diseases_inc. Jan 23, 2025 | Compensation for services other than consulting (speaking, faculty) SYLVANT · ONCOLOGIC AGENT | $53.45 |
| Recordati_rare_diseases_inc. Jan 7, 2025 | Honoraria SYLVANT · ONCOLOGIC AGENT | $500 |
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.