Covered recipient · General Payments record
VISWANATHAN NAGARAJAN
Allopathic & Osteopathic Physicians Internal Medicine Infectious Disease
General Payments · PY2018–2019
$598.22
- Reported across 26 records
- CMS publication 2026-01-23
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How these totals are calculated
- The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. 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.
- Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
- Methodology & Data — sourcing, labeling, and limitations.
By nature of payment
PY2019 · sorted by reported total
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $127.26 | 9 |
| Education | $59.99 | 1 |
By paying entity
PY2019 · sorted by reported total
| Paying entity | Amount | Records |
|---|---|---|
| Astellas Pharma US Inc | $85.97 | 3 |
| PFIZER INC. | $25.57 | 2 |
| TETRAPHASE PHARMACEUTICALS, INC. | $23.45 | 2 |
| Gilead Sciences, Inc. | $20.25 | 1 |
| Insmed, Inc. | $18.08 | 1 |
| Janssen Biotech, Inc. | $13.93 | 1 |
By program year
All program years on this page · sorted by year
Payment records · PY2019 (10)
Sorted by paying entity, then date · as published by CMS
| Paying entity | Amount | Date | Nature of payment | Dispute status | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|
| Astellas Pharma US Inc | $14.85 | 02/14/2019 | Food and Beverage | Undisputed | 01/23/2026 | 655705879 | CMS |
| Astellas Pharma US Inc | $59.99 | 02/15/2019 | Education | Undisputed | 01/23/2026 | 655705883 | CMS |
| Astellas Pharma US Inc | $11.13 | 04/11/2019 | Food and Beverage | Undisputed | 01/23/2026 | 655705885 | CMS |
| Gilead Sciences, Inc. | $20.25 | 05/09/2019 | Food and Beverage | Undisputed | 01/23/2026 | 681570513 | CMS |
| Insmed, Inc. | $18.08 | 04/18/2019 | Food and Beverage | Undisputed | 01/23/2026 | 693319483 | CMS |
| Janssen Biotech, Inc. | $13.93 | 01/03/2019 | Food and Beverage | Undisputed | 01/23/2026 | 658611749 | CMS |
| PFIZER INC. | $14.75 | 05/30/2019 | Food and Beverage | Undisputed | 01/23/2026 | 673100723 | CMS |
| PFIZER INC. | $10.82 | 11/13/2019 | Food and Beverage | Undisputed | 01/23/2026 | 673655505 | CMS |
| TETRAPHASE PHARMACEUTICALS, INC. | $12.47 | 01/24/2019 | Food and Beverage | Undisputed | 01/23/2026 | 693350265 | CMS |
| TETRAPHASE PHARMACEUTICALS, INC. | $10.98 | 03/28/2019 | Food and Beverage | Undisputed | 01/23/2026 | 693350267 | CMS |
Source & provenance
- Dataset
- CMS Open Payments — General Payments
- Publisher of source data
- Centers for Medicare & Medicaid Services
- CMS publication date
- 2026-01-23
- Program years on this page
- 2018, 2019
- Source files
- Dataset page · Bulk file · PY2018 , PY2019
- Generated from
- OP_DTL_GNRL_PGYR2019_P01232026_01102026.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.