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

Marcellus Assiago

Nephrology Riverton, UT Medical Doctor

NPI 1235348897 CMS profile 237935

12523 S Creek Meadow Rd Ste 111, Riverton, UT 84065

Open in the dashboard

General payments

$3,379

67 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, Marcellus Assiago of Riverton, UT is reported in the CMS Open Payments database as having received $3,379 across 67 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 73rd percentile of Nephrology profiles with reported payments. Percentile describes the distribution, not the conduct.

By program year

6 rows
Year Kind Relative to this record's peak year Amount Records
2025 General $2,688 29
2024 General $191 10
2023 General $133 8
2022 General $117 7
2020 General $55 5
2019 General $195 8

Beside peers

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

In program year 2025, general payments to Marcellus Assiago were reported at $2,688. 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 Marcellus Assiago Nephrology median Middle half National median
2019 $195 $236 $90–$588 $163
2020 $55 $135 $46–$364 $114
2021 $0 $202 $67–$551 $132
2022 $117 $242 $77–$695 $149
2023 $133 $254 $84–$766 $160
2024 $191 $300 $99–$852 $164
2025 $2,688 $310 $104–$880 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. Calliditas Therapeutics US Inc. $2,164 3 payments
  2. Otsuka America Pharmaceutical, Inc. $201 7 payments
  3. Amgen Inc. $178 10 payments
  4. Retrophin, Inc. $158 9 payments
  5. AstraZeneca Pharmaceuticals LP $145 10 payments
  6. Boehringer Ingelheim Pharmaceuticals, Inc. $102 6 payments
  7. Bayer HealthCare Pharmaceuticals Inc. $81 5 payments
  8. ANI Pharmaceuticals, Inc. $54 2 payments
  9. Ascendis Pharma, Inc. $35 2 payments
  10. Alnylam Pharmaceuticals Inc. $31 1 payment
  11. Other $230 12 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Consulting Fee $2,000 1 payment
  2. Food and Beverage $1,222 59 payments
  3. Education $157 7 payments
Products named General payments · program years 2019–2025
  1. TARPEYO $2,145 2 payments
  2. LOKELMA $132 9 payments
  3. SAMSCA $122 2 payments
  4. JARDIANCE $102 6 payments
  5. TAVNEOS $94 6 payments
  6. KRYSTEXXA $84 4 payments
  7. Kerendia $81 5 payments
  8. JYNARQUE $76 4 payments
  9. PURIFIED CORTROPHIN GEL $54 2 payments
  10. Yorvipath $35 2 payments
  11. Other $277 17 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 · 29 drugs

Part D claims

913

Median for Nephrology: 954

Drug cost

$100,248

Median for Nephrology: $127,050

Branded share of claims

16.9%

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
Jardiance Empagliflozin Brand 59 $52,128
Farxiga Dapagliflozin Propanediol Brand 49 $34,362
Potassium Citrate Er Potassium Citrate Brand 29 $1,877
Potassium Chloride Generic 68 $1,279
Torsemide Generic 49 $1,134
Gentamicin Sulfate Generic 33 $1,022
Sevelamer Carbonate Generic 11 $940
Calcitriol Generic 75 $909
Amlodipine Besylate Generic 93 $850
Candesartan Cilexetil Generic 12 $838

The 10 drugs with the highest cost, of 29 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 · 20 billing codes

Paid by Medicare

$102,236

Medicare's payments for the services billed

Medicare patients

290

Average age 72

Services billed

949

145 women, 145 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 61%
Arthritis 45%
Heart failure 38%
Ischemic heart disease 38%
Atrial fibrillation 27%
Depression 26%

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

4 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
Kerendia
  • Bayer HealthCare Pharmaceuticals Inc. $34
$34 — —
JARDIANCE
  • Boehringer Ingelheim Pharmaceuticals, Inc. $32
$32 59 —
JYNARQUE
  • Otsuka America Pharmaceutical, Inc. $19
$19 — —
DefenCath
  • CorMedix Inc. $15
$15 — —

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.

Records

67 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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