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

Kevin Martin

Nephrology St Louis, MO Medical Doctor

NPI 1235140864 CMS profile 55343

Center For Specialized Medicine / Multi-Disciplinary Cl, 1225 South Grand Blvd, St Louis, MO 63104

Open in the dashboard

General payments

$189,027

142 records reported · program years 2019–2025

Research payments

$29,838

Paid to them · 35 records reported · program years 2019–2025

Ownership & investment interest

$0

None reported

Through program year 2025, Kevin Martin of St Louis, MO is reported in the CMS Open Payments database as having received $189,027 across 142 general payments and $29,838 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 98th percentile of Nephrology profiles with reported payments. Percentile describes the distribution, not the conduct.

By program year

13 rows
Year Kind Relative to this record's peak year Amount Records
2025 General $20 1
2025 Research $3,600 8
2024 General $18,150 16
2024 Research $267 1
2023 General $18,774 5
2023 Research $6,033 9
2022 General $76,350 22
2021 General $4,745 3
2021 Research $1,475 7
2020 General $18,290 22
2020 Research $1,150 4
2019 General $52,697 73
2019 Research $17,313 6

Beside peers

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

In program year 2025, general payments to Kevin Martin were reported at $20. 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 Kevin Martin Nephrology median Middle half National median
2019 $52,697 $236 $90–$588 $163
2020 $18,290 $135 $46–$364 $114
2021 $4,745 $202 $67–$551 $132
2022 $76,350 $242 $77–$695 $149
2023 $18,774 $254 $84–$766 $160
2024 $18,150 $300 $99–$852 $164
2025 $20 $310 $104–$880 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. Amgen Inc. $71,615 93 payments
  2. Ardelyx, Inc. $69,600 21 payments
  3. Intercept Pharmaceuticals, Inc. $35,333 11 payments
  4. Vifor (International) Ltd. $5,165 3 payments
  5. Bayer HealthCare Pharmaceuticals Inc. $3,791 2 payments
  6. Relypsa, Inc. $2,120 2 payments
  7. Alnylam Pharmaceuticals Inc. $1,080 1 payment
  8. Mallinckrodt Hospital Products Inc. $171 2 payments
  9. Otsuka America Pharmaceutical, Inc. $61 1 payment
  10. Aurinia Pharma U.S., Inc. $24 1 payment
  11. Other $68 5 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Consulting Fee $118,678 38 payments
  2. Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $54,879 33 payments
  3. Travel and Lodging $9,783 40 payments
  4. Education $3,991 6 payments
  5. Food and Beverage $1,697 25 payments
Products named General payments · program years 2019–2025
  1. Parsabiv Nephrology $52,636 72 payments
  2. OCALIVA $35,333 11 payments
  3. XPHOZAH 30 MG $33,100 15 payments
  4. Parsabiv Nephrology $18,979 21 payments
  5. Veltassa $5,165 3 payments
  6. Kerendia $3,791 2 payments
  7. ACTHAR $171 2 payments
  8. SAMSCA $61 1 payment
  9. ARISTA AH FlexiTip $22 1 payment
  10. PAXLOVID $20 1 payment
  11. Other $17 1 payment

A payment can name more than one product, so these amounts overlap and do not add up to the general-payment figure.

Research payments came from Research payments · program years 2019–2025
  1. Novo Nordisk AS $11,844 15 payments
  2. Intercept Pharmaceuticals, Inc. $9,900 18 payments
  3. Amgen Inc. $8,094 2 payments

Prescribing to Medicare patients

Part D · data year 2024 · 6 drugs

Part D claims

120

Median for Nephrology: 954

Drug cost

$13,921

Median for Nephrology: $127,050

Branded share of claims

13.3%

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
Kerendia Finerenone Brand 16 $12,139
Potassium Chloride Generic 12 $1,325
Allopurinol Generic 36 $207
Metoprolol Succinate Generic 16 $129
Furosemide Generic 24 $78
Amlodipine Besylate Generic 16 $43

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 · 22 billing codes

Paid by Medicare

$11,026

Medicare's payments for the services billed

Medicare patients

64

Average age 69

Services billed

151

25 women, 39 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%
Ischemic heart disease 67%
Heart failure 58%
Arthritis 52%
Diabetes 42%
COPD 30%
Cancer 30%

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

1 product · 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
XPHOZAH 30 MG
  • Ardelyx, Inc. $18,100
$18,100 — —

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

177 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.

Other Nephrology in Missouri

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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