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

Daniel Iseman

Gastroenterology Columbia, SC Medical Doctor

NPI 1093777310 CMS profile 140934

1520 Taylor St, Suite 200, Columbia, SC 29201

Open in the dashboard

General payments

$16,733

1,018 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, Daniel Iseman of Columbia, SC is reported in the CMS Open Payments database as having received $16,733 across 1,018 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 87th percentile of Gastroenterology 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 $2,723 148
2024 General $2,792 165
2023 General $2,640 153
2022 General $2,270 132
2021 General $2,879 182
2020 General $1,727 120
2019 General $1,702 118

Beside peers

Year by year, beside peers General payments · among profiles paid that year
  • Daniel Iseman
  • Gastroenterology median
  • Middle half of Gastroenterology
  • National median

In program year 2025, general payments to Daniel Iseman were reported at $2,723. Among 13,050 Gastroenterology profiles paid that year, the median was $639 and the middle half received between $167 and $1,700.

Show as a table
Year Daniel Iseman Gastroenterology median Middle half National median
2019 $1,702 $417 $126–$1,100 $163
2020 $1,727 $224 $74–$624 $114
2021 $2,879 $352 $106–$1,054 $132
2022 $2,270 $448 $129–$1,270 $149
2023 $2,640 $533 $150–$1,390 $160
2024 $2,792 $605 $160–$1,606 $164
2025 $2,723 $639 $167–$1,700 $169

Breakdown

Who paid General payments · program years 2019–2025
  1. AbbVie, Inc. $4,676 325 payments
  2. Salix Pharmaceuticals, a division of Bausch Health US, LLC $2,503 147 payments
  3. Takeda Pharmaceuticals U.S.A., Inc. $1,381 73 payments
  4. QOL Medical, LLC $1,070 44 payments
  5. Janssen Biotech, Inc. $1,002 64 payments
  6. Pfizer Inc. $813 52 payments
  7. Merck Sharp & Dohme Corporation $555 34 payments
  8. Ardelyx, Inc. $513 29 payments
  9. Gilead Sciences, Inc. $499 28 payments
  10. Regeneron Healthcare Solutions, Inc. $379 16 payments
  11. Other $3,342 206 payments

Every payment, record by record

What the payments were for General payments · program years 2019–2025
  1. Food and Beverage $16,542 1,012 payments
  2. Education $192 6 payments
Products named General payments · program years 2019–2025
  1. XIFAXAN $1,995 115 payments
  2. RINVOQ $1,420 74 payments
  3. ENTYVIO $941 50 payments
  4. STELARA $911 56 payments
  5. SKYRIZI $881 40 payments
  6. HUMIRA $873 61 payments
  7. CREON $860 87 payments
  8. LINZESS $813 72 payments
  9. MAVYRET $708 49 payments
  10. XELJANZ $674 43 payments
  11. Other $9,692 564 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 · 34 drugs

Part D claims

1,524

Median for Gastroenterology: 569

Drug cost

$2,604,196

Median for Gastroenterology: $104,976

Branded share of claims

35.2%

Median for Gastroenterology: 31.8%

Drugs this doctor was counted under in Medicare Part D 2024, by drug cost
Drug Type Relative to their largest Claims Drug cost
Stelara Ustekinumab Brand 39 $1,051,261
Humira(Cf) Pen Adalimumab Brand 38 $559,861
Skyrizi On-Body Risankizumab-Rzaa Brand 25 $544,666
Zenpep Lipase/Protease/Amylase Brand 29 $120,956
Creon Lipase/Protease/Amylase Brand 18 $57,218
Ibsrela Tenapanor Hcl Brand 21 $53,423
Linzess Linaclotide Brand 74 $44,403
Mesalamine Generic 53 $36,959
Viberzi Eluxadoline Brand 11 $17,329
Trulance Plecanatide Brand 15 $16,863

The 10 drugs with the highest cost, of 34 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 14,294 Part D prescribers listed as Gastroenterology; they describe a distribution and say nothing about conduct.

Billing to Medicare

Part B · data year 2024 · 27 billing codes

Paid by Medicare

$108,539

Medicare's payments for the services billed

Medicare patients

554

Average age 73

Services billed

1,104

318 women, 236 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%
Arthritis 48%
Diabetes 28%
Ischemic heart disease 27%
Depression 20%
Chronic kidney disease 17%
Cancer 17%
Atrial fibrillation 14%

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 31 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
Sucraid
$288 — —
RINVOQ
$282 — —
SKYRIZI
$233 25 —
ENTYVIO
$233 — —
DUPIXENT
$198 — —

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 more in the dashboard: 25 with a free account, all 31 with Patron

Records

1,018 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 Gastroenterology 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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