Total Payments
$25,905
2024 Payments
$3,643
Companies
10
Transactions
77
Medicare Patients
3,918
Medicare Billing
$994,804
Payment Breakdown by Category
Consulting$18,450 (71.2%)
Food & Beverage$4,501 (17.4%)
Travel$1,754 (6.8%)
Education$1,200 (4.6%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Consulting Fee | $18,450 | 8 | 71.2% |
| Food and Beverage | $4,501 | 60 | 17.4% |
| Travel and Lodging | $1,754 | 8 | 6.8% |
| Education | $1,200 | 1 | 4.6% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Zimmer Biomet Holdings, Inc. | $15,330 | 35 | $0 (2024) |
| Medical Device Business Services, Inc. | $7,746 | 3 | $0 (2022) |
| Stryker Corporation | $1,624 | 23 | $0 (2024) |
| DePuy Synthes Sales Inc. | $546.90 | 5 | $0 (2023) |
| Mallinckrodt LLC | $177.48 | 2 | $0 (2017) |
| Smith+Nephew, Inc. | $156.82 | 2 | $0 (2024) |
| Halyard Health, Inc. | $124.95 | 3 | $0 (2017) |
| Medtronic USA, Inc. | $96.48 | 1 | $0 (2019) |
| Solventum Corporation | $73.56 | 1 | $0 (2024) |
| Ethicon US, LLC | $28.38 | 2 | $0 (2023) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $3,643 | 18 | Zimmer Biomet Holdings, Inc. ($3,433) |
| 2023 | $11,282 | 13 | Zimmer Biomet Holdings, Inc. ($11,040) |
| 2022 | $4,912 | 9 | Medical Device Business Services, Inc. ($4,500) |
| 2021 | $4,002 | 11 | Medical Device Business Services, Inc. ($3,150) |
| 2020 | $268.82 | 2 | Stryker Corporation ($268.82) |
| 2019 | $622.95 | 7 | Stryker Corporation ($424.05) |
| 2018 | $436.26 | 5 | Stryker Corporation ($339.91) |
| 2017 | $737.51 | 12 | Stryker Corporation ($264.49) |
All Payment Transactions
77 individual payment records from CMS Open Payments — Page 1 of 4
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 11/09/2024 | Zimmer Biomet Holdings, Inc. | — | Food and Beverage | In-kind items and services | $35.78 | General |
| 11/08/2024 | Zimmer Biomet Holdings, Inc. | — | Food and Beverage | In-kind items and services | $143.66 | General |
| 11/01/2024 | Zimmer Biomet Holdings, Inc. | ROSA (Device) | Food and Beverage | In-kind items and services | $16.11 | General |
| Category: Knees | ||||||
| 10/23/2024 | Stryker Corporation | TRITANIUM (Device) | Food and Beverage | In-kind items and services | $94.80 | General |
| Category: HIPS | ||||||
| 09/05/2024 | Solventum Corporation | Ioban 2 (Device), PREVENA, PREVENA RESTOR ARTHROFORM | Food and Beverage | Cash or cash equivalent | $73.56 | General |
| Category: Dressings & Drapes | ||||||
| 08/15/2024 | Zimmer Biomet Holdings, Inc. | ROSA (Device) | Education | Cash or cash equivalent | $1,200.00 | General |
| Category: Knees | ||||||
| 08/08/2024 | Smith+Nephew, Inc. | PICO 7 (Device) | Food and Beverage | In-kind items and services | $15.63 | General |
| Category: Negative Pressure Wound Therapy | ||||||
| 07/25/2024 | Stryker Corporation | PHOTONSABER Y (Device) | Food and Beverage | In-kind items and services | $26.82 | General |
| Category: LIGHTED SUCTION | ||||||
| 07/11/2024 | Zimmer Biomet Holdings, Inc. | G7 (Device) | Travel and Lodging | In-kind items and services | $854.92 | General |
| Category: Hips | ||||||
| 07/11/2024 | Zimmer Biomet Holdings, Inc. | G7 (Device) | Travel and Lodging | In-kind items and services | $35.00 | General |
| Category: Hips | ||||||
| 07/11/2024 | Zimmer Biomet Holdings, Inc. | G7 (Device) | Travel and Lodging | In-kind items and services | $25.00 | General |
| Category: Hips | ||||||
| 07/10/2024 | Zimmer Biomet Holdings, Inc. | G7 (Device) | Travel and Lodging | In-kind items and services | $160.68 | General |
| Category: Hips | ||||||
| 07/10/2024 | Zimmer Biomet Holdings, Inc. | Avenir (Device), Persona | Food and Beverage | In-kind items and services | $144.07 | General |
| Category: Hips | ||||||
| 06/20/2024 | Zimmer Biomet Holdings, Inc. | Persona (Device), mymobility Platform, ROSA | Food and Beverage | In-kind items and services | $96.14 | General |
| Category: Knees | ||||||
| 02/01/2024 | Zimmer Biomet Holdings, Inc. | Persona (Device) | Travel and Lodging | In-kind items and services | $419.84 | General |
| Category: Knees | ||||||
| 02/01/2024 | Zimmer Biomet Holdings, Inc. | Persona (Device) | Travel and Lodging | In-kind items and services | $35.00 | General |
| Category: Knees | ||||||
| 01/31/2024 | Zimmer Biomet Holdings, Inc. | Persona (Device) | Travel and Lodging | In-kind items and services | $166.89 | General |
| Category: Knees | ||||||
| 01/31/2024 | Zimmer Biomet Holdings, Inc. | mymobility Platform (Device) | Food and Beverage | In-kind items and services | $99.58 | General |
| Category: Connected Health | ||||||
| 12/14/2023 | Zimmer Biomet Holdings, Inc. | ROSA (Device) | Consulting Fee | Cash or cash equivalent | $1,200.00 | General |
| Category: Knees | ||||||
| 11/14/2023 | DePuy Synthes Sales Inc. | ATTUNE (Device) | Food and Beverage | In-kind items and services | $112.41 | General |
| Category: Ortho-Knee | ||||||
| 10/12/2023 | Zimmer Biomet Holdings, Inc. | ROSA (Device) | Consulting Fee | Cash or cash equivalent | $1,200.00 | General |
| Category: Knees | ||||||
| 09/22/2023 | Zimmer Biomet Holdings, Inc. | Persona (Device), ROSA | Food and Beverage | In-kind items and services | $18.09 | General |
| Category: Knees | ||||||
| 09/22/2023 | Zimmer Biomet Holdings, Inc. | ROSA (Device) | Food and Beverage | In-kind items and services | $10.73 | General |
| Category: Knees | ||||||
| 08/29/2023 | Zimmer Biomet Holdings, Inc. | ROSA (Device), ROSA | Food and Beverage | In-kind items and services | $117.23 | General |
| Category: Knees | ||||||
| 08/16/2023 | Zimmer Biomet Holdings, Inc. | Persona (Device) | Food and Beverage | In-kind items and services | $94.44 | General |
| Category: Knees | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 11 | 770 | 1,364 | $1.2M | $244,056 |
| 2022 | 13 | 927 | 1,641 | $1.3M | $259,266 |
| 2021 | 15 | 1,151 | 2,960 | $1.3M | $267,695 |
| 2020 | 12 | 1,070 | 3,304 | $1.1M | $223,788 |
Total Patients
3,918
Total Services
9,269
Medicare Billing
$994,804
Procedure Codes
51
All Medicare Procedures & Services
51 procedure records from CMS Medicare Utilization — Page 1 of 3
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 27447 | Replacement of knee joint, both sides of knee | Facility | 2023 | 133 | 138 | $700,250 | $128,941 | 18.4% |
| 27130 | Replacement of thigh bone and hip joint with prosthesis | Facility | 2023 | 57 | 62 | $311,000 | $59,121 | 19.0% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 174 | 192 | $40,704 | $15,422 | 37.9% |
| 27236 | Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement | Facility | 2023 | 13 | 13 | $50,453 | $11,734 | 23.3% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2023 | 138 | 161 | $23,023 | $9,268 | 40.3% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 53 | 54 | $15,768 | $6,602 | 41.9% |
| 20610 | Aspiration and/or injection of fluid from large joint | Office | 2023 | 77 | 131 | $31,040 | $5,721 | 18.4% |
| 20985 | Computer-assisted surgery for muscle and bone procedure | Facility | 2023 | 27 | 27 | $8,829 | $2,970 | 33.6% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2023 | 18 | 18 | $5,994 | $2,147 | 35.8% |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Facility | 2023 | 14 | 14 | $6,370 | $1,730 | 27.2% |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Office | 2023 | 66 | 554 | $45,428 | $400.57 | 0.9% |
| 27447 | Replacement of knee joint, both sides of knee | Facility | 2022 | 128 | 139 | $709,000 | $131,135 | 18.5% |
| 27130 | Replacement of thigh bone and hip joint with prosthesis | Facility | 2022 | 56 | 57 | $287,000 | $55,470 | 19.3% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 217 | 235 | $49,820 | $20,105 | 40.4% |
| 27236 | Treatment of upper end of broken thigh bone with placement of stabilizing device or prosthetic replacement | Facility | 2022 | 14 | 14 | $54,334 | $12,438 | 22.9% |
| 27245 | Treatment of broken neck of thigh bone with bone implant | Facility | 2022 | 12 | 12 | $39,636 | $10,126 | 25.5% |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | Office | 2022 | 137 | 165 | $23,595 | $9,956 | 42.2% |
| 20610 | Aspiration and/or injection of fluid from large joint | Office | 2022 | 90 | 152 | $35,502 | $6,724 | 18.9% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2022 | 41 | 41 | $11,972 | $5,034 | 42.0% |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | Office | 2022 | 28 | 28 | $9,324 | $3,036 | 32.6% |
| 11981 | Insertion of drug delivery implant into tissue | Facility | 2022 | 96 | 103 | $30,385 | $2,477 | 8.2% |
| 99222 | Initial hospital inpatient care per day, typically 50 minutes | Facility | 2022 | 16 | 16 | $4,640 | $1,649 | 35.5% |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | Office | 2022 | 15 | 15 | $1,320 | $589.00 | 44.6% |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Office | 2022 | 77 | 664 | $54,448 | $527.27 | 1.0% |
| 27447 | Repair of knee joint, lower or upper part of joint, inside and outside area | Facility | 2021 | 88 | 95 | $480,000 | $92,344 | 19.2% |
About Dr. Tharun Karthikeyan, MD
Dr. Tharun Karthikeyan, MD is a Orthopaedic Surgery healthcare provider based in Lexington, Kentucky. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 06/05/2007. The National Provider Identifier (NPI) number assigned to this provider is 1922200468.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Tharun Karthikeyan, MD has received a total of $25,905 in payments from pharmaceutical and medical device companies, with $3,643 received in 2024. These payments were reported across 77 transactions from 10 companies. The most common payment nature is "Consulting Fee" ($18,450).
As a Medicare-enrolled provider, Karthikeyan has provided services to 3,918 Medicare beneficiaries, totaling 9,269 services with total Medicare billing of $994,804. Data is available for 4 years (2020–2023), covering 51 distinct procedure/service records.
Ad
Practice Information
- Specialty Orthopaedic Surgery
- Other Specialties Orthopaedic Surgery, Orthopaedic Surgery
- Location Lexington, KY
- Active Since 06/05/2007
- Last Updated 04/21/2025
- Taxonomy Code 207X00000X
- Entity Type Individual
- NPI Number 1922200468
Products in Payments
- ROSA (Device) $8,641
- Persona (Device) $4,662
- G7 (Device) $1,076
- TRIATHLON (Device) $407.40
- TRITANIUM (Device) $339.91
- MAKO (Device) $286.98
- ACTIS (Device) $239.63
- Makoplasty (Device) $233.05
- OFIRMEV (Drug) $177.48
- NONE (Device) $165.82
- ROSA-Knee (Device) $146.16
- Avenir (Device) $144.07
- JOURNEY II (Device) $141.19
- Connected Health-MyMobility (Device) $138.91
- TRIDENT (Device) $116.64
- ATTUNE (Device) $112.41
- ON-Q PUMP AND ACCESSORIES (Device) $109.73
- Persona Revision (Device) $101.72
- mymobility Platform (Device) $99.58
- AQUAMANTYS (Device) $96.48
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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