Product Program year 2025 Source: CMS Open Payments

Xywav

Drug Neurology

NDC 68727-150-01

Open in the dashboard

General payments

$13,737,421

78,543 payments

Research payments

$21,248,065

11,997 payments

Through program year 2025, $13,737,421 in general payments and $21,248,065 in research payments were reported against Xywav (Neurology).

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

12 rows
Year Kind Amount Payments
2025 General $3,246,381 19,523
2025 Research $3,950,408 2,095
2024 General $3,675,101 18,860
2024 Research $9,498,004 6,943
2023 General $3,288,797 16,239
2023 Research $1,754,126 1,589
2022 General $2,155,568 13,069
2022 Research $1,455,225 166
2021 General $1,209,524 9,459
2021 Research $2,412,330 396
2020 General $162,049 1,393
2020 Research $2,177,972 808

Breakdown

Who paid General payments · program years 2020–2025
  1. Jazz Pharmaceuticals Inc. $13,737,421 78,543 payments
Top recipients General payments · program year 2025
  1. Nancy Lynch Hand Surgery · San Mateo, CA $137,413 4% · 10 payments
  2. Richard Bogan Pulmonary Disease · Columbia, SC $120,897 4% · 102 payments
  3. Abhinav Singh Internal Medicine · Greenwood, IN $101,147 3% · 75 payments
  4. Vikas Jain Sleep Medicine · Frisco, TX $90,892 3% · 81 payments
  5. Akinyemi Ajayi Pediatric Pulmonology · Winter Park, FL $83,261 3% · 53 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. Sleep Medicine Psychiatry & Neurology $506,315 16% · 119 practitioners
  2. Pulmonary Disease Internal Medicine $482,721 15% · 1,052 practitioners
  3. Neurology Psychiatry & Neurology $411,597 13% · 479 practitioners
  4. Sleep Medicine Internal Medicine $354,591 11% · 298 practitioners
  5. Sleep Medicine Family Medicine $257,629 8% · 91 practitioners

The top 5 of 114 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. California $412,688 13% · 303 recipients
  2. Florida $402,129 12% · 481 recipients
  3. Texas $294,983 9% · 441 recipients
  4. New York $196,875 6% · 215 recipients
  5. South Carolina $183,456 6% · 76 recipients

The top 5 of 52 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

9,591

Prescriptions dispensed, refills included

Drug cost

$165,287,230

Paid at the pharmacy, in all

Prescribers

537

With 11 or more claims of it

Medicare Part D drugs matched to XYWAV, 2024
Part D drug Name match Relative to the largest Prescribers Claims Drug cost
Xywav Sodium,calcium,mag,pot Oxybate Same name 537 9,591 $165,287,230

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 100 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
Gautam Samadder Internal Medicine OH 164 $2,870,366 $597
Rosanne Barker Neurology TN 90 $1,651,888 $8,301
Adrian Santamaria Neurology TX 70 $1,079,050 $11,915
Gerard Meskill Sleep Medicine TX 67 $855,450 $56,419
Mary Stevens Sleep Medicine KS 65 $1,278,297 $25,998

"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 100 with Patron
78,543 general · 11,997 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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