Who Paid My Doc
Oi Chung
Physician Assistant Monterey Park, CA Physician Assistant
NPI 1104085893 CMS profile 10440785
525 N Garfield Ave, Monterey Park, CA 91754
General payments
$5,075
Research payments
$0
Ownership & investment interest
$0
Through program year 2025, Oi Chung of Monterey Park, CA is reported in the CMS Open Payments database as having received $5,075 across 150 general payments and $0 in research payments paid to them.
No combined total General, research and ownership are kept apart. Each is reported under its own rules, and ownership is not money that moved at all but the value of a stake held. A meal, a clinical trial grant and a shareholding do not add up to anything meaningful, so this site does not add them.
General payments for this record sit in the 92nd percentile of Physician Assistant profiles with reported payments. Percentile describes the distribution, not the conduct.
By program year
5 rows| Year | Kind | Relative to this record's peak year | Amount | Records |
|---|---|---|---|---|
| 2025 | General | $267 | 12 | |
| 2024 | General | $1,251 | 33 | |
| 2023 | General | $579 | 25 | |
| 2022 | General | $2,002 | 49 | |
| 2021 | General | $976 | 31 |
Beside peers
- Oi Chung
- Physician Assistant median
- Middle half of Physician Assistant
- National median
In program year 2025, general payments to Oi Chung were reported at $267. Among 68,903 Physician Assistant profiles paid that year, the median was $184 and the middle half received between $57 and $620.
Show as a table
| Year | Oi Chung | Physician Assistant median | Middle half | National median |
|---|---|---|---|---|
| 2019 | $0 | $34 | $17–$122 | $163 |
| 2020 | $0 | $33 | $16–$78 | $114 |
| 2021 | $976 | $132 | $37–$438 | $132 |
| 2022 | $2,002 | $155 | $48–$522 | $149 |
| 2023 | $579 | $167 | $52–$557 | $160 |
| 2024 | $1,251 | $178 | $55–$600 | $164 |
| 2025 | $267 | $184 | $57–$620 | $169 |
Breakdown
A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.
Prescribing to Medicare patients
Part D · data year 2024 · 23 drugsPart D claims
1,003
Drug cost
$328,901
Branded share of claims
52.4%
| Drug | Type | Relative to their largest | Claims | Drug cost |
|---|---|---|---|---|
| Vemlidy Tenofovir Alafenamide | Brand | 178 | $252,872 | |
| Creon Lipase/Protease/Amylase | Brand | 17 | $20,137 | |
| Zenpep Lipase/Protease/Amylase | Brand | 13 | $17,916 | |
| Linzess Linaclotide | Brand | 15 | $7,964 | |
| Clenpiq Sod Picosulf/Mag Ox/Citric Ac | Brand | 45 | $7,656 | |
| Tenofovir Disoproxil Fumarate | Generic | 96 | $5,513 | |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | Brand | 71 | $4,456 | |
| Ursodiol | Generic | 23 | $2,519 | |
| Mesalamine | Generic | 17 | $2,239 | |
| Gavilyte-G Peg3350/Sod Sulf,bicarb,cl/Kcl | Brand | 136 | $2,153 |
The 10 drugs with the highest cost, of 23 counted.
Drug cost is what was paid for the drugs at the pharmacy — by Medicare, the patient and others — and is not money to the prescriber. Medicare Part D only: drugs dispensed to Medicare beneficiaries. A drug with fewer than 11 claims for this prescriber is not published, so a missing drug does not mean zero. The medians are for the 114,276 Part D prescribers listed as Physician Assistant; they describe a distribution and say nothing about conduct.
Payments and prescribing
First 5 of 9 products · payments 2024Two separate records. The payments come from Open Payments and the claims from Medicare. They are set side by side because they name the same product; they do not show that a payment affected a prescription.
| Product | Paid by | Related payments | Part D claims | Part B services |
|---|---|---|---|---|
| VOQUEZNA |
|
$234 | — | — |
| Vemlidy |
|
$150 | 178 | — |
| Epclusa |
|
$125 | — | — |
| Livdelzi |
|
$125 | — | — |
| REZDIFFRA |
|
$125 | — | — |
A dash means Medicare published no figure for this doctor and product — fewer than 11 claims, or the product is not covered under that part — which is not the same as none. Payments are general payments only; one that names several products is split evenly between them, so an amount is payments related to the product, not money paid for it.
See all 9 in the dashboard with a free accountRecords
150 reportedEvery payment, record by record
Date, company, amount, what it was for and the product named — filter by year, kind and company, or download as CSV.
Other Physician Assistant in California
Related records
Physician Assistant in California
Practitioners in the same specialty and state, ranked by reported value.
All Physician Assistant
Everyone recorded under this specialty, nationwide.
Doctors in California
Every practitioner in the state with a reported payment.
How to read this page
What each amount means, and what it does not mean.
What this means
U.S. law requires drug and medical device manufacturers to report payments and transfers of value they make to physicians and teaching hospitals. The Centers for Medicare & Medicaid Services publishes that record each year. This page shows what was reported about this person, and nothing else.
An ownership interest is different from the other two. It is not a payment: it is a stake — shares, options, a partnership holding — that a physician or an immediate family member held in a manufacturer during that year. The figure shown is what the stake was reported to be worth.
Research payments frequently pass through a clinician to the institution running a trial, and rarely represent personal income. They should be read differently from general payments.