Siddique Akbar, MD
Nephrology · Jackson, TNNPI 1295290328
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $896 of the $1,070 with a category attached, or 83.7%. It is spread thinly across 11 manufacturers, the largest accounting for just 16.4% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $440, 2.5 times the $179 reported in 2019. That places this record below the midpoint for nephrology clinicians in TN, where the typical reported total is $1,232.
Across 16 payments — averaging $66.88 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Travere Therapeutics, Inc.$175
- Nxstage Medical, Inc.$135
- Novo Nordisk$125
- AstraZeneca$119
- Amgen$105
- Mallinckrodt Enterprises LLC$95
- plus $316 from 5 others
What the payments were for
- Food & beverage$89684%
- Education$17416%
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.
| Company | Payments | Total |
|---|---|---|
| Travere Therapeutics, Inc. | 5 | $175 |
| Nxstage Medical, Inc. | 1 | $135 |
| Novo Nordisk | 1 | $125 |
| AstraZeneca | 1 | $119 |
| Amgen | 1 | $105 |
| Mallinckrodt Enterprises LLC | 1 | $95 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 1 | $86 |
| Vifor Pharma, Inc. | 1 | $84 |
| Vantive US Healthcare LLC | 1 | $77 |
| Akebia Therapeutics Inc | 2 | $40 |
| OPKO Pharmaceuticals, LLC | 1 | $29 |
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.
- NXSTAGE SYSTEM ONE$135
- Ozempic$125
- LOKELMA$119
- Aranesp$105
How this compares
$1,070 in reported general payments places this provider in the 45th percentile of 229 nephrology providers in Tennessee.
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 |
|---|---|---|
| Calcitriol | 50 | $527 |
| Amlodipine Besylate | 52 | $337 |
| Losartan Potassium | 25 | $311 |
| Hydralazine Hcl | 24 | $244 |
| Lisinopril | 48 | $207 |
| Ciprofloxacin Hcl | 32 | $158 |
| Furosemide | 49 | $143 |
| Clonidine Hcl | 12 | $77 |
Paid to pharmacies, not to this prescriber.
Other nephrology in Jackson
- Victor NwazueJackson$7K
- Jamie DwyerNashville$461K
- Ross NesbitKnoxville$452K
- Gerald BorrelliKnoxville$190K
- Volker HaaseNashville$123K
- Chike NzerueCookeville$95K
- Talat IkizlerNashville$93K
- Omar HamzeMemphis$90K
- Julia LewisNashville$87K
- Osama El ShamyNashville$87K
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.