Covered recipient · General Payments record
MARK G LOOMUS
Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology
A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.
General Payments · PY2025
$1,459.67
95 records · 0 disputed
“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”
— Centers for Medicare & Medicaid Services, Open Payments
A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.
These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.
A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.
How these totals are calculated
- This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
- General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
- Methodology & Data — sourcing, labeling, and limitations.
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By nature of payment
PY2025 · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $1,459.67 | 95 |
By paying entity
PY2025 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| ABBVIE INC. | $902.12 | 78 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $151.73 | 10 |
| TG THERAPEUTICS, INC. | $124.22 | 1 |
| EISAI INC. | $122.57 | 1 |
| Genentech USA, Inc. | $58.70 | 2 |
| EMD Serono, Inc. | $40.39 | 1 |
| JAZZ PHARMACEUTICALS INC. | $30.37 | 1 |
| Biogen, Inc. | $29.57 | 1 |
Payment records · PY2025 (95)
Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them
By program year
All program years on this page · sorted by year
Source & provenance
- Dataset
- CMS Open Payments — General Payments
- Publisher of source data
- Centers for Medicare & Medicaid Services
- CMS publication date
- 2026-06-30
- Program years on this page
- 2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
- Source files
- Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
- Generated from
- OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv
One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.
Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.
Cite this record.
Permalink https://industrypayments.org/provider/npi-1821198599
- Plain
- MARK G LOOMUS, NPI 1821198599. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1821198599.
- APA 7
- IndustryPayments. (2026). MARK G LOOMUS, NPI 1821198599 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1821198599
- Bluebook
- MARK G LOOMUS, NPI 1821198599, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1821198599.
Source: Centers for Medicare & Medicaid Services, Open Payments.