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

Matthew Lambert

Nephrology Spartanburg, SC Medical Doctor

NPI 1992840805 CMS profile 1160436

126 Dillon Dr, Spartanburg, SC 29307

Open in the dashboard

General payments

$9,260

456 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, Matthew Lambert of Spartanburg, SC is reported in the CMS Open Payments database as having received $9,260 across 456 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 88th 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 $2,014 78
2024 General $1,604 84
2023 General $1,421 68
2022 General $1,065 54
2021 General $1,067 55
2020 General $1,018 57
2019 General $1,070 60

Beside peers

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

In program year 2025, general payments to Matthew Lambert were reported at $2,014. 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 Matthew Lambert Nephrology median Middle half National median
2019 $1,070 $236 $90–$588 $163
2020 $1,018 $135 $46–$364 $114
2021 $1,067 $202 $67–$551 $132
2022 $1,065 $242 $77–$695 $149
2023 $1,421 $254 $84–$766 $160
2024 $1,604 $300 $99–$852 $164
2025 $2,014 $310 $104–$880 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. Akebia Therapeutics Inc $863 38 payments
  2. AstraZeneca Pharmaceuticals LP $800 45 payments
  3. Novartis Pharmaceuticals Corporation $688 27 payments
  4. Otsuka America Pharmaceutical, Inc. $608 54 payments
  5. Retrophin, Inc. $524 22 payments
  6. Amgen Inc. $510 25 payments
  7. Mallinckrodt Hospital Products Inc. $484 19 payments
  8. ANI Pharmaceuticals, Inc. $473 20 payments
  9. Relypsa, Inc. $446 23 payments
  10. Calliditas Therapeutics US Inc. $444 17 payments
  11. Other $3,419 166 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Food and Beverage $9,034 448 payments
  2. Education $226 8 payments
Products named General payments · program years 2019–2025
  1. Auryxia $785 35 payments
  2. LOKELMA $627 35 payments
  3. JYNARQUE $497 44 payments
  4. Fabhalta $477 17 payments
  5. ACTHAR $399 16 payments
  6. Kerendia $358 18 payments
  7. BENLYSTA $332 18 payments
  8. Veltassa $297 15 payments
  9. KRYSTEXXA $284 14 payments
  10. PURIFIED CORTROPHIN GEL $275 12 payments
  11. Other $4,219 200 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 · 41 drugs

Part D claims

1,875

Median for Internal Medicine: 777

Drug cost

$345,844

Median for Internal Medicine: $73,373

Branded share of claims

21.9%

Median for Internal Medicine: 19.3%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Farxiga Dapagliflozin Propanediol Brand 141 $119,188
Veltassa Patiromer Calcium Sorbitex Brand 74 $69,221
Jardiance Empagliflozin Brand 72 $55,711
Kerendia Finerenone Brand 25 $21,263
Auryxia Ferric Citrate Brand 15 $21,009
Velphoro Sucroferric Oxyhydroxide Brand 11 $15,886
Lokelma Sodium Zirconium Cyclosilicate Brand 12 $8,432
Sps Sodium Polystyrene Sulfon/Sorb Brand 26 $7,342
Calcium Acetate Generic 78 $4,999
Dapagliflozin Dapagliflozin Propanediol Brand 12 $3,594

The 10 drugs with the highest cost, of 41 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 104,182 Part D prescribers listed as Internal Medicine; they describe a distribution and say nothing about conduct.

Billing to Medicare

Part B · data year 2024 · 25 billing codes

Paid by Medicare

$165,437

Medicare's payments for the services billed

Medicare patients

446

Average age 74

Services billed

1,906

209 women, 237 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 58%
Arthritis 47%
Heart failure 45%
Ischemic heart disease 42%
Atrial fibrillation 31%
Depression 29%

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 20 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
JYNARQUE
  • Otsuka America Pharmaceutical, Inc. $147
$147 — —
Fabhalta
  • Novartis Pharmaceuticals Corporation $143
$143 — —
TARPEYO
  • CALLIDITAS THERAPEUTICS US INC. $106
$106 — —
PURIFIED CORTROPHIN GEL
  • ANI Pharmaceuticals, Inc. $105
$105 — —
JARDIANCE
  • Boehringer Ingelheim Pharmaceuticals, Inc. $63
  • Lilly USA, LLC $37
$100 72 —

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 20 in the dashboard with a free account

Records

456 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 South Carolina

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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