Medical Doctor Program year 2025 Reported 2019–2025 Source: CMS Open Payments, 2026 publication

William Weiss

Nephrology Phoenix, AZ Medical Doctor

NPI 1881686368 CMS profile 1043298

9321 W Thomas Rd, Ste 400, Phoenix, AZ 85037

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General payments

$7,725

283 records reported · program years 2019–2025

Research payments

$0

Paid to them · None reported · program years 2019–2025

Ownership & investment interest

$0

None reported

Through program year 2025, William Weiss of Phoenix, AZ is reported in the CMS Open Payments database as having received $7,725 across 283 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 86th percentile of Nephrology profiles with reported payments. Percentile describes the distribution, not the conduct.

By program year

7 rows
Year Kind Relative to this record's peak year Amount Records
2025 General $639 19
2024 General $1,411 47
2023 General $1,431 53
2022 General $1,571 67
2021 General $1,628 48
2020 General $493 25
2019 General $552 24

Beside peers

Year by year, beside peers General payments · among profiles paid that year
  • William Weiss
  • Nephrology median
  • Middle half of Nephrology
  • National median

In program year 2025, general payments to William Weiss were reported at $639. Among 8,186 Nephrology profiles paid that year, the median was $310 and the middle half received between $104 and $880.

Show as a table
Year William Weiss Nephrology median Middle half National median
2019 $552 $236 $90–$588 $163
2020 $493 $135 $46–$364 $114
2021 $1,628 $202 $67–$551 $132
2022 $1,571 $242 $77–$695 $149
2023 $1,431 $254 $84–$766 $160
2024 $1,411 $300 $99–$852 $164
2025 $639 $310 $104–$880 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. AstraZeneca Pharmaceuticals LP $1,119 40 payments
  2. Relypsa, Inc. $843 36 payments
  3. Amgen Inc. $764 29 payments
  4. Akebia Therapeutics Inc $665 22 payments
  5. Horizon Therapeutics plc $610 19 payments
  6. Otsuka America Pharmaceutical, Inc. $584 24 payments
  7. GlaxoSmithKline, LLC. $459 15 payments
  8. OPKO Pharmaceuticals, LLC $386 19 payments
  9. Retrophin, Inc. $366 7 payments
  10. Daiichi Sankyo Inc. $339 14 payments
  11. Other $1,591 58 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Food and Beverage $7,466 271 payments
  2. Education $259 12 payments
Products named General payments · program years 2019–2025
  1. LOKELMA $821 23 payments
  2. KRYSTEXXA Krystexxa $610 19 payments
  3. JYNARQUE $554 22 payments
  4. Auryxia $544 21 payments
  5. BENLYSTA $459 15 payments
  6. KRYSTEXXA Inflammation/Rare Disease $402 13 payments
  7. Veltassa $387 22 payments
  8. RAYALDEE $348 17 payments
  9. INJECTAFER $325 13 payments
  10. ACTHAR $262 9 payments
  11. Other $2,593 105 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 · 33 drugs

Part D claims

2,087

Median for Nephrology: 954

Drug cost

$249,130

Median for Nephrology: $127,050

Branded share of claims

17.3%

Median for Nephrology: 17.9%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Veltassa Patiromer Calcium Sorbitex Brand 113 $108,607
Lokelma Sodium Zirconium Cyclosilicate Brand 63 $51,609
Farxiga Dapagliflozin Propanediol Brand 36 $38,378
Auryxia Ferric Citrate Brand 13 $18,100
Sevelamer Carbonate Generic 41 $12,720
Calcitriol Generic 169 $2,471
Nifedipine Er Nifedipine Brand 63 $2,111
Plenamine Parenteral Amino Acid 15% No.6 Brand 43 $1,974
Hydralazine Hcl Generic 66 $1,451
Losartan Potassium Generic 223 $1,434

The 10 drugs with the highest cost, of 33 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 9,003 Part D prescribers listed as Nephrology; they describe a distribution and say nothing about conduct.

Billing to Medicare

Part B · data year 2024 · 17 billing codes

Paid by Medicare

$143,548

Medicare's payments for the services billed

Medicare patients

138

Average age 76

Services billed

2,753

73 women, 65 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%
Chronic kidney disease 75%
Diabetes 52%
Arthritis 51%
Ischemic heart disease 45%
COPD 28%
Heart failure 25%
Atrial fibrillation 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 16 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
KRYSTEXXA
  • Amgen Inc. $278
$278 — —
ACTHAR
  • Mallinckrodt Hospital Products Inc. $164
$164 — —
JYNARQUE
  • Otsuka America Pharmaceutical, Inc. $152
$152 — —
XPHOZAH 30 MG
  • Ardelyx, Inc. $122
$122 — —
IBSRELA
  • Ardelyx, Inc. $90
$90 — —

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 16 in the dashboard with a free account

Records

283 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.

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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