Physician Assistant Program year 2025 Reported 2021–2025 Source: CMS Open Payments, 2026 publication

Liza Chen

Physician Assistant Bakersfield, CA Physician Assistant

NPI 1043294275 CMS profile 10807891

6501 Truxtun Ave, Bakersfield, CA 93309

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General payments

$13,180

622 records reported · program years 2021–2025

Research payments

$0

Paid to them · None reported · program years 2021–2025

Ownership & investment interest

$0

None reported

Through program year 2025, Liza Chen of Bakersfield, CA is reported in the CMS Open Payments database as having received $13,180 across 622 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 98th 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 $5,490 250
2024 General $3,860 180
2023 General $2,639 136
2022 General $1,089 54
2021 General $102 2

Beside peers

Year by year, beside peers General payments · among profiles paid that year
  • Liza Chen
  • Physician Assistant median
  • Middle half of Physician Assistant
  • National median

In program year 2025, general payments to Liza Chen were reported at $5,490. 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 Liza Chen Physician Assistant median Middle half National median
2019 $0 $34 $17–$122 $163
2020 $0 $33 $16–$78 $114
2021 $102 $132 $37–$438 $132
2022 $1,089 $155 $48–$522 $149
2023 $2,639 $167 $52–$557 $160
2024 $3,860 $178 $55–$600 $164
2025 $5,490 $184 $57–$620 $169

Breakdown

Who paid General payments · program years 2021–2025
  1. Janssen Biotech, Inc. $1,279 67 payments
  2. Daiichi Sankyo Inc. $1,018 64 payments
  3. GlaxoSmithKline, LLC. $1,003 42 payments
  4. Sobi, Inc $845 33 payments
  5. AstraZeneca Pharmaceuticals LP $788 30 payments
  6. Pfizer Inc. $607 37 payments
  7. Exelixis Inc. $566 24 payments
  8. Astellas Pharma US Inc $537 25 payments
  9. Novartis Pharmaceuticals Corporation $446 27 payments
  10. Takeda Pharmaceuticals U.S.A., Inc. $409 16 payments
  11. Other $5,683 257 payments

Every payment, record by record

What the payments were for General payments · program years 2021–2025
  1. Food and Beverage $12,703 617 payments
  2. Education $477 5 payments
Products named General payments · program years 2021–2025
  1. INJECTAFER $530 33 payments
  2. DARZALEX $479 32 payments
  3. OJJAARA $475 27 payments
  4. JEMPERLI $407 11 payments
  5. Doptelet $402 17 payments
  6. Lenvima $392 17 payments
  7. ZEJULA $371 12 payments
  8. CALQUENCE $354 12 payments
  9. TECVAYLI $345 16 payments
  10. CARVYKTI $337 14 payments
  11. Other $11,067 571 payments

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 · 16 drugs

Part D claims

395

Median for Physician Assistant: 241

Drug cost

$173,787

Median for Physician Assistant: $4,110

Branded share of claims

20%

Median for Physician Assistant: 19.6%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Ninlaro Ixazomib Citrate Brand 12 $158,798
Eliquis Apixaban Brand 14 $7,859
Ondansetron Hcl Generic 36 $2,157
Ondansetron Odt Ondansetron Brand 14 $858
Prochlorperazine Maleate Generic 30 $769
Potassium Chloride Generic 28 $757
Warfarin Sodium Generic 87 $714
Dexamethasone Generic 30 $552
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen Brand 19 $320
Acyclovir Generic 21 $272

The 10 drugs with the highest cost, of 16 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.

Billing to Medicare

Part B · data year 2024 · 8 billing codes

Paid by Medicare

$124,706

Medicare's payments for the services billed

Medicare patients

470

Average age 72

Services billed

1,887

288 women, 182 men among their patients

Share of this provider's Medicare patients with each condition
Condition among their Medicare patients Relative to the most common Share of patients
High blood pressure 75%
Diabetes 52%
Arthritis 50%
Ischemic heart disease 46%
Cancer 39%
Chronic kidney disease 36%
COPD 25%
Heart failure 24%

Medicare Part B only: services billed to Medicare. Rows covering fewer than 11 beneficiaries are not published. Only drugs given in the clinic are itemised here; the rest of what this provider billed is in the total above.

Payments and prescribing

First 5 of 64 products · payments 2024

Two 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.

Products this doctor was paid in connection with in 2024, beside Medicare claims for the same product
Product Paid by Related payments Part D claims Part B services
OJJAARA
  • GlaxoSmithKline, LLC. $237
$237 — —
Doptelet
  • Sobi, Inc $216
$216 — —
JEMPERLI
  • GlaxoSmithKline, LLC. $183
$183 — —
INJECTAFER
  • Daiichi Sankyo Inc. $181
$181 — —
Vanflyta
  • Daiichi Sankyo Inc. $175
$175 — —

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 more in the dashboard: 25 with a free account, all 64 with Patron

Records

622 reported

Every 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

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.

Provenance

Source: CMS Open Payments · through program year 2025

Data current to program year 2025, from CMS's 2026 publication.

We reproduce what manufacturers reported. We do not verify, edit or correct the underlying records.

A payment record is not evidence of wrongdoing. Financial relationships between industry and medicine are legal, common and often necessary for research. Who Paid My Doc reports what was disclosed; it does not judge it.

Who Paid My Doc is independent and is not affiliated with, endorsed by or sponsored by CMS or any U.S. government agency. It is not a consumer reporting agency and this is not a consumer report; do not use it for decisions covered by the Fair Credit Reporting Act.

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