Has Jj Zhang, MD received payments from drug or device companies?

Yes. Drug and device makers reported $36,841 in general payments to Jj Zhang, MD across 83 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Jj Zhang, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Jj Zhang, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Jj Zhang, MD

Urology · Los Angeles, CANPI 1235523598

Payments from drug & device makers

What this record shows

This record is dominated by speaking fees: $24,401 of the $36,841 with a category attached, or 66.2%. 22 manufacturers reported payments, led by Progenics Pharmaceuticals, Inc. at 50.5% of the total. 2025 is the largest year on record at $30,027, more than ten times the $34 reported in 2021. Among urology clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$36,841in general payments, 2019–2025

Across 83 payments — averaging $443.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Progenics Pharmaceuticals, Inc.$19K
Johnson & Johnson$9K
Intuitive Surgical$5K
Ferring Pharmaceuticals AS$1K
EDAP Technomed Inc$624
Astellas Pharma US Inc$285
plus $2K from 16 others

What the payments were for

Consulting fees$1,3634%
Speaking & faculty fees$24,40166%
Travel & lodging$3,53410%
Food & beverage$5,35915%
Education$2,1846%

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
Progenics Pharmaceuticals, Inc.	16	$18,599
Johnson & Johnson	17	$9,317
Intuitive Surgical	14	$4,511
Ferring Pharmaceuticals AS	4	$1,433
EDAP Technomed Inc	3	$624
Astellas Pharma US Inc	3	$285
Dendreon Pharmaceuticals LLC	2	$278
Janssen Scientific Affairs, LLC	2	$212
Boston Scientific	3	$196
Procept Biorobotics Corporation	1	$178
Calyxo, Inc.	1	$158
AVEO Pharmaceuticals, Inc.	1	$144
Smith+Nephew	1	$144
Exelixis Inc.	1	$125
Pfizer	2	$124
Endo USA, Inc.	1	$111
Laborie Medical Technologies Corp.	1	$90
Astellas Pharma Global Development	2	$89
Merck	2	$65
Coloplast	1	$58
Rochester Medical Corporation	3	$49
C. R. Bard, Inc. & Subsidiaries	2	$48

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.

How this compares

$36,841 in reported general payments places this provider in the 90th percentile of 1,324 urology providers in California.

See all urology providers in California →

Medicare billing

Part B allowed, 2024

$209,763

Medicare patients

309

Services billed

1,483

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
Tamsulosin Hcl	69	$1,162
Oxybutynin Chloride ErOxybutynin Chloride	28	$714
Trospium Chloride	18	$648
Finasteride	15	$225
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim	11	$58

Paid to pharmacies, not to this prescriber.

Other urology in Los Angeles

Arie BelldegrunLos Angeles$1.8M
Mihir DesaiLos Angeles$1.5M
Stuart HoldenLos Angeles$1.1M
William AronsonLos Angeles$540K
Amir LebastchiLos Angeles$478K
Nazy ZomorodianLos Angeles$309K
Jeffrey Loh-DoyleLos Angeles$308K
Siamak DaneshmandLos Angeles$306K
Karim ChamieLos Angeles$291K
Brian ShuchLos Angeles$166K

See the full list for California →

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.

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