Product Program year 2025 Source: CMS Open Payments

Zerbaxa

Drug Infectious Disease

NDC 67919-030-01

Open in the dashboard

General payments

$3,463,345

53,066 payments

Research payments

$5,921,740

469 payments

Through program year 2025, $3,463,345 in general payments and $5,921,740 in research payments were reported against Zerbaxa (Infectious Disease).

No combined total These are different kinds of money, reported under different rules. A meal and a clinical trial grant do not add up to anything meaningful, so this site does not add them.

By program year

14 rows
Year Kind Amount Payments
2025 General $639,199 10,709
2025 Research $742,823 15
2024 General $235,311 8,723
2024 Research $908,093 24
2023 General $314,195 8,082
2023 Research $658,386 79
2022 General $246,616 6,513
2022 Research $681,256 45
2021 General $19,945 839
2021 Research $361,182 24
2020 General $358,723 4,775
2020 Research $1,189,432 89
2019 General $1,649,355 13,425
2019 Research $1,380,567 193

Breakdown

Who paid General payments · program years 2019–2025
  1. Merck Sharp & Dohme Corporation $3,463,345 53,066 payments
Top recipients General payments · program year 2025
  1. Amar Safdar Infectious Disease · Houston, TX $79,187 12% · 61 payments
  2. Kerry Cleveland Infectious Disease · Memphis, TN $43,932 7% · 50 payments
  3. Amesh Adalja Infectious Disease · Pittsburgh, PA $40,393 6% · 50 payments
  4. Javeed Siddiqui Infectious Disease · Roseville, CA $28,121 4% · 21 payments
  5. Marcus Zervos Infectious Disease · Detroit, MI $24,590 4% · 20 payments

The top 5 of the 100 largest recipients; each share is of general payments naming this product in 2025.

The top 25 recipients, free in the app

Specialties paid General payments · program year 2025
  1. Infectious Disease Internal Medicine $349,877 62% · 873 practitioners
  2. Pulmonary Disease Internal Medicine $41,116 7% · 721 practitioners
  3. Critical Care Medicine Internal Medicine $34,382 6% · 194 practitioners
  4. Internal Medicine $30,032 5% · 748 practitioners
  5. Nurse Practitioner, Family Nurse Practitioner $21,920 4% · 456 practitioners

The top 5 of 112 specialties; each share is of general payments naming this product to practitioners with a specialty in 2025. Each practitioner is counted under their primary specialty.

The top 25 specialties, free in the app

Where the money went General payments · program year 2025
  1. Texas $106,320 17% · 485 recipients
  2. California $83,490 13% · 386 recipients
  3. New York $58,660 9% · 395 recipients
  4. Florida $53,527 8% · 432 recipients
  5. Tennessee $52,422 8% · 169 recipients

The top 5 of 51 states; each share is of general payments naming this product in 2025 where a state was reported.

The top 25 states, free in the app

Prescribed to Medicare patients

Part D · data year 2024

Part D claims

1,917

Prescriptions dispensed, refills included

Drug cost

$7,368,298

Paid at the pharmacy, in all

Prescribers

95

With 11 or more claims of it

Medicare Part D drugs matched to ZERBAXA, 2024
Part D drug Name match Relative to the largest Prescribers Claims Drug cost
Zerbaxa Ceftolozane/Tazobactam Same name 95 1,917 $7,368,298

Matched to this product by name; CMS does not link its files to Open Payments, so a similar name can be a different strength, form or brand. Prescriber counts include only prescribers with 11 or more claims of the drug, because CMS publishes nothing below that. Part D covers drugs dispensed to Medicare beneficiaries at a pharmacy; it does not include drugs given in a clinic or hospital, or patients with other insurance.

Largest prescribers

First 5 of 95 by claims · 2024

Two separate records. Claims come from Medicare and related payments from Open Payments. They are shown in one row because they name the same product; they do not show that a payment affected a prescription.

The prescribers with the most Part D claims of this drug in 2024
Prescriber Specialty State Claims Drug cost Related payments
Kathryn Ripley Nurse Practitioner VA 74 $324,747 None on record
Daniel Zimmerman Infectious Disease IL 71 $232,348 None on record
Patricia Bartley Infectious Disease OH 52 $153,142 None on record
Kavya Patel Infectious Disease OH 51 $359,969 No profile
Anmary Fernandez De Checo Infectious Disease FL 50 $187,649 None on record

"No profile" means the prescriber has no Open Payments record here; "None on record" means no payment naming this product in the payment year. Related payments are general payments, and one that names several products is split evenly, so an amount is payments related to the product, not money paid for it. The list is the prescribers with the most claims, up to 100 per drug.

See more in the dashboard: 25 with a free account, all 95 with Patron

Given in the clinic

Part B · billing code
Medicare Part B billing codes matched to ZERBAXA
Billing code Providers Services Paid by Medicare
Injection, ceftolozane 50 mg and tazobactam 25 mg J0695 1 24 $140

Drugs given by a clinician are billed to Medicare Part B, not Part D. The product is tied to a billing code through the NDC on CMS's crosswalk, which was published for a later quarter than the payments, so a code that changed in between can be missed. Providers with fewer than 11 patients for the code are not published. Medicare's payment here is what it paid for the services, to the billing practice.

53,066 general · 469 research

Every payment, record by record

Date, amount, who was paid and what for — filter by year and kind, or download as CSV, free, in files of 5,000 rows.

What you are looking at

Manufacturers name the drug, biological or device a payment relates to. CMS does not give products their own identifiers, so a product here is assembled from how it was reported — a brand may appear under more than one spelling, and this page covers one of them rather than the brand as a whole.

Provenance

Source: CMS Open Payments · through program year 2025

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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