Total Payments
$6,925
2024 Payments
$3,632
Companies
14
Transactions
56
Medicare Patients
4,124
Medicare Billing
$387,717
Payment Breakdown by Category
Travel$4,500 (65.0%)
Food & Beverage$2,342 (33.8%)
Education$74.12 (1.1%)
Gifts$8.74 (0.1%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Travel and Lodging | $4,500 | 26 | 65.0% |
| Food and Beverage | $2,342 | 25 | 33.8% |
| Education | $74.12 | 4 | 1.1% |
| Gift | $8.74 | 1 | 0.1% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| INTUITIVE SURGICAL, INC. | $3,199 | 22 | $0 (2024) |
| Ethicon Inc. | $1,294 | 11 | $0 (2024) |
| Pulmonx Corporation | $1,114 | 4 | $0 (2023) |
| Noah Medical Corporation | $441.33 | 4 | $0 (2024) |
| Inari Medical, Inc. | $200.00 | 2 | $0 (2021) |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $198.82 | 5 | $0 (2019) |
| Medical Device Business Services, Inc. | $120.00 | 1 | $0 (2019) |
| Gilead Sciences, Inc. | $110.70 | 1 | $0 (2023) |
| ABIOMED | $96.92 | 1 | $0 (2022) |
| ZOLL Circulation Inc | $48.00 | 1 | $0 (2018) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $3,632 | 26 | INTUITIVE SURGICAL, INC. ($3,118) |
| 2023 | $509.13 | 8 | Ethicon Inc. ($300.09) |
| 2022 | $178.05 | 2 | ABIOMED ($96.92) |
| 2021 | $100.00 | 1 | Inari Medical, Inc. ($100.00) |
| 2020 | $867.87 | 6 | Ethicon Inc. ($745.91) |
| 2019 | $1,552 | 11 | Pulmonx Corporation ($1,057) |
| 2018 | $86.00 | 2 | ZOLL Circulation Inc ($48.00) |
All Payment Transactions
56 individual payment records from CMS Open Payments — Page 1 of 3
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/19/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $328.30 | General |
| Category: SURGERY | ||||||
| 12/18/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $110.16 | General |
| Category: SURGERY | ||||||
| 12/18/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $19.00 | General |
| Category: SURGERY | ||||||
| 09/17/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Food and Beverage | In-kind items and services | $100.95 | General |
| Category: SURGERY | ||||||
| 09/17/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Food and Beverage | In-kind items and services | $92.87 | General |
| Category: SURGERY | ||||||
| 08/03/2024 | Noah Medical Corporation | GALAXY (Device) | Travel and Lodging | Cash or cash equivalent | $142.04 | General |
| Category: Bronchoscope (Flexible Or Rigid) And Accessories | ||||||
| 08/03/2024 | Noah Medical Corporation | GALAXY (Device) | Travel and Lodging | Cash or cash equivalent | $30.00 | General |
| Category: Bronchoscope (Flexible Or Rigid) And Accessories | ||||||
| 08/03/2024 | Noah Medical Corporation | GALAXY (Device) | Travel and Lodging | Cash or cash equivalent | $30.00 | General |
| Category: Bronchoscope (Flexible Or Rigid) And Accessories | ||||||
| 06/20/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $181.10 | General |
| Category: SURGERY | ||||||
| 06/20/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $19.00 | General |
| Category: SURGERY | ||||||
| 05/22/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $337.99 | General |
| Category: SURGERY | ||||||
| 05/22/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $212.98 | General |
| Category: SURGERY | ||||||
| 05/22/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $19.00 | General |
| Category: SURGERY | ||||||
| 05/22/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $19.00 | General |
| Category: SURGERY | ||||||
| 05/21/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Food and Beverage | In-kind items and services | $87.57 | General |
| Category: SURGERY | ||||||
| 05/07/2024 | Ethicon Inc. | Monarch Platform (Device) | Food and Beverage | In-kind items and services | $72.67 | General |
| Category: Endo-Mechanical | ||||||
| 04/30/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Food and Beverage | In-kind items and services | $126.88 | General |
| Category: SURGERY | ||||||
| 04/20/2024 | Noah Medical Corporation | GALAXY (Device) | Food and Beverage | Cash or cash equivalent | $239.29 | General |
| Category: Bronchoscope (Flexible Or Rigid) And Accessories | ||||||
| 04/10/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $658.16 | General |
| Category: SURGERY | ||||||
| 04/10/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $19.00 | General |
| Category: SURGERY | ||||||
| 04/09/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Food and Beverage | In-kind items and services | $344.29 | General |
| Category: SURGERY | ||||||
| 04/09/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Gift | In-kind items and services | $8.74 | General |
| Category: SURGERY | ||||||
| 03/07/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $223.54 | General |
| Category: SURGERY | ||||||
| 03/07/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $171.60 | General |
| Category: SURGERY | ||||||
| 03/07/2024 | INTUITIVE SURGICAL, INC. | Da Vinci Surgical System (Device) | Travel and Lodging | In-kind items and services | $19.00 | General |
| Category: SURGERY | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 23 | 1,021 | 1,424 | $496,062 | $93,727 |
| 2022 | 22 | 1,084 | 1,485 | $412,441 | $97,377 |
| 2021 | 20 | 984 | 1,327 | $394,982 | $99,072 |
| 2020 | 20 | 1,035 | 1,398 | $406,140 | $97,540 |
Total Patients
4,124
Total Services
5,634
Medicare Billing
$387,717
Procedure Codes
98
All Medicare Procedures & Services
98 procedure records from CMS Medicare Utilization — Page 3 of 4
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 94375 | Test to measure rate of airflow | Facility | 2022 | 15 | 15 | $690.00 | $163.24 | 23.7% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Office | 2021 | 176 | 309 | $102,897 | $28,987 | 28.2% |
| 99291 | Critical care delivery critically ill or injured patient, first 30-74 minutes | Facility | 2021 | 88 | 150 | $104,400 | $24,839 | 23.8% |
| 99233 | Subsequent hospital inpatient care, typically 35 minutes per day | Facility | 2021 | 84 | 154 | $49,742 | $11,865 | 23.9% |
| 99204 | New patient outpatient visit, total time 45-59 minutes | Office | 2021 | 46 | 46 | $23,460 | $5,976 | 25.5% |
| 94375 | Respiratory diagnostic testing (flow volume loop) | Office | 2021 | 127 | 157 | $19,154 | $4,519 | 23.6% |
| 99213 | Established patient outpatient visit, total time 20-29 minutes | Office | 2021 | 56 | 58 | $12,992 | $3,872 | 29.8% |
| 99223 | Initial hospital inpatient care, typically 70 minutes per day | Facility | 2021 | 23 | 23 | $14,490 | $3,359 | 23.2% |
| 99442 | Physician telephone patient service, 11-20 minutes of medical discussion | Office | 2021 | 31 | 38 | $10,513 | $2,388 | 22.7% |
| 99215 | Established patient outpatient visit, total time 40-54 minutes | Office | 2021 | 13 | 16 | $7,200 | $2,134 | 29.6% |
| 99232 | Subsequent hospital inpatient care, typically 25 minutes per day | Facility | 2021 | 22 | 32 | $7,168 | $1,792 | 25.0% |
| 99443 | Physician telephone patient service, 21-30 minutes of medical discussion | Office | 2021 | 18 | 18 | $6,020 | $1,667 | 27.7% |
| 94729 | Measurement of lung diffusing capacity | Office | 2021 | 34 | 36 | $6,084 | $1,603 | 26.3% |
| 71046 | X-ray of chest, 2 views | Office | 2021 | 51 | 61 | $5,795 | $1,553 | 26.8% |
| 94726 | Determination of lung volumes using plethysmography | Office | 2021 | 34 | 36 | $5,904 | $1,390 | 23.5% |
| 90682 | Vaccine for influenza derived from dna for injection into muscle, quadrivalent, preservative and antibiotic free | Office | 2021 | 12 | 12 | $852.00 | $717.86 | 84.3% |
| 95012 | Measurement of inhaled nitric oxide gas | Office | 2021 | 31 | 42 | $2,562 | $647.22 | 25.3% |
| 31624 | Irrigation and suction of lung airways to obtain cells using an endoscope | Facility | 2021 | 18 | 18 | $8,460 | $549.47 | 6.5% |
| 94618 | Test for exercise-induced lung stress | Office | 2021 | 14 | 15 | $1,605 | $395.10 | 24.6% |
| 94726 | Determination of lung volumes using plethysmography | Facility | 2021 | 30 | 30 | $1,170 | $241.00 | 20.6% |
| 94729 | Measurement of lung diffusing capacity | Facility | 2021 | 29 | 29 | $841.00 | $178.25 | 21.2% |
| 94375 | Respiratory diagnostic testing (flow volume loop) | Facility | 2021 | 16 | 16 | $736.00 | $139.08 | 18.9% |
| 94060 | Measurement and graphic recording of the amount and speed of breathed air, before and following medication administration | Facility | 2021 | 17 | 17 | $697.00 | $131.84 | 18.9% |
| 99152 | Moderate sedation services by physician also performing a procedure, patient 5 years of age or older, first 15 minutes | Facility | 2021 | 14 | 14 | $2,240 | $127.14 | 5.7% |
| 99214 | Established patient office or other outpatient, visit typically 25 minutes | Office | 2020 | 185 | 325 | $108,225 | $25,087 | 23.2% |
About Dr. Karthik Mahadevan, MD
Dr. Karthik Mahadevan, MD is a Internal Medicine healthcare provider based in Eugene, Oregon. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 04/20/2006. The National Provider Identifier (NPI) number assigned to this provider is 1144285263.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Karthik Mahadevan, MD has received a total of $6,925 in payments from pharmaceutical and medical device companies, with $3,632 received in 2024. These payments were reported across 56 transactions from 14 companies. The most common payment nature is "Travel and Lodging" ($4,500).
As a Medicare-enrolled provider, Mahadevan has provided services to 4,124 Medicare beneficiaries, totaling 5,634 services with total Medicare billing of $387,717. Data is available for 4 years (2020–2023), covering 98 distinct procedure/service records.
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Practice Information
- Specialty Internal Medicine
- Other Specialties Critical Care Medicine, Sleep Medicine
- Location Eugene, OR
- Active Since 04/20/2006
- Last Updated 10/25/2022
- Taxonomy Code 207R00000X
- Entity Type Individual
- NPI Number 1144285263
Products in Payments
- Da Vinci Surgical System (Device) $3,199
- Monarch Platform (Device) $1,119
- Pulmonx Endobronchial Valve EBV (Device) $1,057
- GALAXY (Device) $441.33
- MONARCH (Device) $175.50
- BIOKNOTLESS (Device) $120.00
- Trodelvy (Drug) $110.70
- FLOWTRIEVER CATHETER, S (Device) $100.00
- FlowTriever (Device) $100.00
- Impella (Device) $96.92
- CHARTIS CATHETER (Device) $56.60
- Temperature Management System (Device) $48.00
- Esbriet (Biological) $38.00
- NUCALA (Biological) $22.50
- Zemaira (Biological) $21.96
- WatchPATONE (Device) $19.24
- SPIRIVA RESPIMAT (Drug) $14.16
- OFEV (Drug) $8.85
Explore
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.
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