Katherine Fan, MD
Gastroenterology · Gig Harbor, WANPI 1417227703
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $3,404 of the $4,594 with a category attached, or 74.1%. Olympus Corporation Of The Americas accounts for 77.5% of it on its own, with 8 other manufacturers making up the rest. 2025 is the largest year on record at $3,592, 6.4 times the $563 reported in 2019.
Across 41 payments — averaging $112.05 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Olympus Corporation Of The Americas$4K
- AbbVie$340
- Janssen Scientific Affairs, LLC$188
- Gilead$122
- Intercept Pharmaceuticals, Inc.$119
- Johnson & Johnson$99
- plus $165 from 3 others
What the payments were for
- Travel & lodging$3,40474%
- Food & beverage$1,09124%
- Education$992%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Olympus Corporation Of The Americas | 29 | $3,562 |
| AbbVie | 4 | $340 |
| Janssen Scientific Affairs, LLC | 2 | $188 |
| Gilead | 1 | $122 |
| Intercept Pharmaceuticals, Inc. | 1 | $119 |
| Johnson & Johnson | 1 | $99 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $92 |
| Boston Scientific | 1 | $42 |
| ERBE USA Inc | 1 | $30 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Single Use Electrosurgical Knife KD-655$2,935
- DISPOSABLE DISTAL ATTACHMENT$2,935
- Olympus$2,400
- Vemlidy$122
- Humira$120
- OCALIVA$119
- STELARA$117
How this compares
$4,594 in reported general payments places this provider in the 80th percentile of 447 gastroenterology providers in Washington.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 21 | $1,180 |
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 48 | $805 |
| Omeprazole | 53 | $649 |
| Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl | 41 | $599 |
| Famotidine | 18 | $236 |
| Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl | 11 | $133 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Gig Harbor
- Michael ChioreanIssaquah$1.4M
- Kris KowdleySeattle$1.4M
- Venkatachala MohanBellevue$564K
- Scott LeeSeattle$220K
- John SunTacoma$219K
- Klaus MergenerEdmonds$185K
- Alyssa ChoiSeattle$102K
- Andrew RossSeattle$99K
- Jaime Aranda-MichelVancouver$82K
- Christian HornTacoma$65K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.