MIKAYEL GRIGORYAN
Allopathic & Osteopathic Physicians|Neurological Surgery GLENDALE, CA NPI 1801003686
Browse related groups: Allopathic & Osteopathic Physicians|Neurological Surgery CA Penumbra, Inc. All categories
General Payments — all program years on this page
$125,419.26
- Category: General Payments
- Program years: PY2018–2024
- Record count: 637
- As of (CMS publication): 2026-01-23
Latest program year (PY2024): $6,515.00 across 102 records · disputed records: 0
Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.
How this figure is 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
Latest program year (PY2024) · sorted by reported total.
| Nature of payment | Amount | Records |
|---|---|---|
| Food and Beverage | $5,301.95 | 94 |
| Travel and Lodging | $1,213.05 | 8 |
By paying entity
Latest program year (PY2024) · sorted by reported total.
| Paying entity | Amount | Records |
|---|---|---|
| Penumbra, Inc. | $1,499.94 | 11 |
| Imperative Care, INc | $1,482.52 | 17 |
| Abbott Laboratories | $1,283.37 | 28 |
| Stryker Corporation | $1,157.12 | 25 |
| MicroVention, Inc. | $376.41 | 3 |
| Acerta Pharma LLC | $333.20 | 3 |
| EISAI INC. | $42.06 | 2 |
| Neurelis, Inc. | $33.87 | 1 |
| Alexion Pharmaceuticals, Inc. | $32.93 | 1 |
| Lilly USA, LLC | $32.41 | 1 |
| SK Life Science, Inc. | $30.18 | 1 |
| PFIZER INC. | $28.56 | 1 |
| Genentech USA, Inc. | $27.97 | 1 |
| Amneal Pharmaceuticals LLC | $26.88 | 1 |
| CSL Behring | $26.59 | 1 |
| Amgen Inc. | $26.09 | 1 |
| Medtronic, Inc. | $20.62 | 1 |
| ABBVIE INC. | $20.14 | 1 |
| Novo Nordisk AS | $18.01 | 1 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $16.13 | 1 |
By program year
Records — PY2024 (102)
Provenance & corrections
- Dataset: CMS Open Payments — General Payments
- Source: CMS Open Payments dataset (bulk file)
- Publisher of source data: Centers for Medicare & Medicaid Services
- Generated from: OP_DTL_GNRL_PGYR2024_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.