Total Payments
$3,436
2024 Payments
$211.00
Companies
18
Transactions
75
Medicare Patients
76
Medicare Billing
$12,472
Payment Breakdown by Category
Food & Beverage$3,436 (100.0%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Food and Beverage | $3,436 | 75 | 100.0% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Stryker Corporation | $997.47 | 17 | $0 (2019) |
| Medtronic USA, Inc. | $833.74 | 19 | $0 (2019) |
| Penumbra, Inc. | $560.12 | 8 | $0 (2023) |
| Imperative Care, Inc | $438.58 | 5 | $0 (2023) |
| Octapharma USA, Inc. | $110.40 | 3 | $0 (2024) |
| SK Life Science, Inc. | $108.88 | 5 | $0 (2024) |
| Medtronic, Inc. | $69.17 | 2 | $0 (2022) |
| PFIZER INC. | $52.19 | 2 | $0 (2024) |
| ARGENX US, INC. | $47.39 | 2 | $0 (2023) |
| Eisai Inc. | $37.85 | 2 | $0 (2024) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $211.00 | 8 | Octapharma USA, Inc. ($74.70) |
| 2023 | $536.42 | 12 | Imperative Care, Inc ($277.26) |
| 2022 | $214.12 | 5 | Imperative Care, Inc ($161.32) |
| 2021 | $34.06 | 1 | Medtronic, Inc. ($34.06) |
| 2019 | $674.30 | 16 | Stryker Corporation ($249.02) |
| 2018 | $619.23 | 13 | Stryker Corporation ($389.45) |
| 2017 | $1,147 | 20 | Medtronic USA, Inc. ($440.56) |
All Payment Transactions
75 individual payment records from CMS Open Payments — Page 1 of 3
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 09/09/2024 | Octapharma USA, Inc. | BALFAXAR (Biological) | Food and Beverage | In-kind items and services | $37.84 | General |
| Category: INTENSIVE CAREEMERGENCY | ||||||
| 04/11/2024 | Neurocrine Biosciences, Inc. | INGREZZA (Drug) | Food and Beverage | In-kind items and services | $27.75 | General |
| Category: Neuropsychiatry | ||||||
| 03/21/2024 | SK Life Science, Inc. | — | Food and Beverage | In-kind items and services | $23.90 | General |
| 03/07/2024 | Eisai Inc. | Leqembi (Drug) | Food and Beverage | In-kind items and services | $17.54 | General |
| Category: Neurology | ||||||
| 02/29/2024 | SK Life Science, Inc. | — | Food and Beverage | In-kind items and services | $25.11 | General |
| 02/22/2024 | Octapharma USA, Inc. | BALFAXAR (Biological) | Food and Beverage | In-kind items and services | $36.86 | General |
| Category: INTENSIVE CAREEMERGENCY | ||||||
| 01/16/2024 | PFIZER INC. | ELIQUIS (Drug), PAXLOVID, NURTEC ODT | Food and Beverage | In-kind items and services | $26.95 | General |
| Category: CARDIOVASCULAR;METABOLIC DISEASE | ||||||
| 01/05/2024 | SK Life Science, Inc. | — | Food and Beverage | In-kind items and services | $15.05 | General |
| 11/16/2023 | Octapharma USA, Inc. | PANZYGA (Biological) | Food and Beverage | In-kind items and services | $35.70 | General |
| Category: IMMUNOLOGY | ||||||
| 10/16/2023 | SK Life Science, Inc. | — | Food and Beverage | In-kind items and services | $18.75 | General |
| 10/10/2023 | Eisai Inc. | Leqembi (Drug) | Food and Beverage | Cash or cash equivalent | $20.31 | General |
| Category: Neurology | ||||||
| 10/03/2023 | ARGENX US, INC. | VYVGART (Drug) | Food and Beverage | In-kind items and services | $31.85 | General |
| Category: Immunology | ||||||
| 09/13/2023 | ARGENX US, INC. | VYVGART (Drug) | Food and Beverage | In-kind items and services | $15.54 | General |
| Category: Immunology | ||||||
| 08/15/2023 | Otsuka America Pharmaceutical, Inc. | REXULTI (Drug) | Food and Beverage | In-kind items and services | $17.36 | General |
| Category: PSYCHIATRY | ||||||
| 07/18/2023 | Imperative Care, Inc | ZOOM 88-T LARGE DISTAL PLATFORM (Device) | Food and Beverage | In-kind items and services | $131.45 | General |
| Category: VASCULAR | ||||||
| 07/13/2023 | PFIZER INC. | ELIQUIS (Drug), NURTEC ODT, ZAVZPRET | Food and Beverage | In-kind items and services | $25.24 | General |
| Category: CARDIOVASCULAR;METABOLIC DISEASE | ||||||
| 06/20/2023 | SK Life Science, Inc. | — | Food and Beverage | In-kind items and services | $26.07 | General |
| 05/18/2023 | Penumbra, Inc. | RED 72 (Device) | Food and Beverage | Cash or cash equivalent | $47.03 | General |
| Category: Neurointervention | ||||||
| 01/21/2023 | Imperative Care, Inc | ZOOM RDL RADIAL ACCESS SYSTEM, 103CM (Device) | Food and Beverage | In-kind items and services | $145.81 | General |
| Category: VASCULAR | ||||||
| 01/06/2023 | Amneal Pharmaceuticals LLC | RYTARY (Drug) | Food and Beverage | In-kind items and services | $21.31 | General |
| Category: NEUROLOGY | ||||||
| 12/08/2022 | Medtronic, Inc. | PIPELINE (Device) | Food and Beverage | In-kind items and services | $35.11 | General |
| Category: Flow Diversion | ||||||
| 08/09/2022 | Imperative Care, Inc | ZOOM REPERFUSION CATHETER (Device), ZOOM 88-T LARGE DISTAL PLATFORM | Food and Beverage | In-kind items and services | $59.24 | General |
| Category: VASCULAR | ||||||
| 06/17/2022 | Imperative Care, Inc | ZOOM REPERFUSION CATHETER (Device), ZOOM 88-T LARGE DISTAL PLATFORM | Food and Beverage | In-kind items and services | $54.33 | General |
| Category: VASCULAR | ||||||
| 05/26/2022 | Imperative Care, Inc | ZOOM REPERFUSION CATHETER (Device), ZOOM 88-T LARGE DISTAL PLATFORM | Food and Beverage | In-kind items and services | $47.75 | General |
| Category: VASCULAR | ||||||
| 01/14/2022 | E.R. Squibb & Sons, L.L.C. | — | Food and Beverage | Cash or cash equivalent | $17.69 | General |
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 2 | 47 | 53 | $25,168 | $6,833 |
| 2022 | 1 | 15 | 33 | $7,981 | $3,154 |
| 2020 | 1 | 14 | 24 | $5,922 | $2,484 |
Total Patients
76
Total Services
110
Medicare Billing
$12,472
Procedure Codes
4
All Medicare Procedures & Services
4 procedure records from CMS Medicare Utilization
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Facility | 2023 | 24 | 24 | $14,351 | $3,750 | 26.1% |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Facility | 2023 | 23 | 29 | $10,817 | $3,083 | 28.5% |
| 99233 | Follow-up hospital inpatient care per day, typically 35 minutes | Facility | 2022 | 15 | 33 | $7,981 | $3,154 | 39.5% |
| 99214 | Established patient office or other outpatient, visit typically 25 minutes | Office | 2020 | 14 | 24 | $5,922 | $2,484 | 41.9% |
About Dr. Ambooj Tiwari, MD
Dr. Ambooj Tiwari, MD is a Vascular Neurology healthcare provider based in Mission Hills, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 02/17/2010. The National Provider Identifier (NPI) number assigned to this provider is 1609198779.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Ambooj Tiwari, MD has received a total of $3,436 in payments from pharmaceutical and medical device companies, with $211.00 received in 2024. These payments were reported across 75 transactions from 18 companies. The most common payment nature is "Food and Beverage" ($3,436).
As a Medicare-enrolled provider, Tiwari has provided services to 76 Medicare beneficiaries, totaling 110 services with total Medicare billing of $12,472. Data is available for 3 years (2020–2023), covering 4 distinct procedure/service records.
Ad
Practice Information
- Specialty Vascular Neurology
- Other Specialties Vascular & Interventional Radiology, Vascular & Interventional Radiology
- Location Mission Hills, CA
- Active Since 02/17/2010
- Last Updated 08/08/2025
- Taxonomy Code 2084V0102X
- Entity Type Individual
- Practice Solo Practitioner
- NPI Number 1609198779
Products in Payments
- Penumbra System (Device) $396.09
- Solitaire (Device) $343.53
- Trevo (Device) $256.05
- Pipeline (Device) $214.45
- TREVO (Device) $163.75
- ZOOM REPERFUSION CATHETER (Device) $161.32
- TARGET (Device) $157.69
- ZOOM RDL RADIAL ACCESS SYSTEM, 103CM (Device) $145.81
- ZOOM 88-T LARGE DISTAL PLATFORM (Device) $131.45
- SURPASS (Device) $127.45
- ATLAS (Device) $126.80
- Covidien-Access (Device) $122.00
- Penumbra Ruby Coil (Device) $117.00
- Atlas (Device) $102.95
- Axium (Device) $87.50
- BALFAXAR (Biological) $74.70
- ELIQUIS (Drug) $52.19
- VYVGART (Drug) $47.39
- RED 72 (Device) $47.03
- FLOWGATE (Device) $43.39
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Data Sources
Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.