Karthikeyan Kanagarajan, MD
Sleep Medicine · Cincinnati, OHNPI 1497704936
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $4,958 of the $6,448 with a category attached, or 76.9%. 30 manufacturers reported payments, led by Inspire Medical Systems, Inc. at 41.8% of the total.
Across 172 payments — averaging $37.49 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Inspire Medical Systems, Inc.$3K
- Jazz Pharmaceuticals Inc.$1K
- GSK$502
- Harmony Biosciences LLC$445
- Axsome Therapeutics, Inc.$255
- Sunovion Pharmaceuticals Inc.$126
- plus $1K from 24 others
Across 1 payment — averaging $1000.00 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- ZOLL Respicardia, Inc.$1K
What the payments were for
- Travel & lodging$1,00616%
- Food & beverage$4,95877%
- Education$3896%
- Gifts$951%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$6,448 in reported general payments places this provider in the 80th percentile of 94 sleep medicine providers in Ohio.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Modafinil | 12 | $1,384 |
| Fluticasone Propionate | 47 | $568 |
| Gabapentin | 107 | $475 |
| Azelastine Hcl | 12 | $429 |
| Doxepin Hcl | 36 | $384 |
| Amitriptyline Hcl | 34 | $295 |
| Ropinirole Hcl | 29 | $154 |
| Clonazepam | 16 | $148 |
| Trazodone Hcl | 28 | $87 |
| Zolpidem Tartrate | 40 | $62 |
| Pramipexole DihydrochloridePramipexole Di-Hcl | 14 | $53 |
| Montelukast Sodium | 15 | $48 |
Paid to pharmacies, not to this prescriber.
Other sleep medicine in Cincinnati
- Shahrokh JavaheriCincinnati$404K
- Anthony SuchoskiCincinnati$89K
- Shayla PullenCincinnati$71K
- Sunil DamaCincinnati$7K
- Omdevasena ThirugnanamCincinnati$7K
- Chiranjeevi Pramodna SiddaguntaCincinnati$3K
- Bashar BrijawiCincinnati$3K
- Ann RomakerCincinnati$2K
- Roma UyCincinnati$1K
- Asim RoyDublin$666K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.