Chiemeziem Nwanyanwu
Infectious Disease · Memphis, TNNPI 1477937548
Payments from drug & device makers
Across 54 payments — averaging $16.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$391
- La Jolla Pharmaceutical Company$157
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$127
- Johnson & Johnson$68
- Merck$43
- Shionogi Inc$37
- plus $76 from 4 others
What the payments were for
- Food & beverage$899100%
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 |
|---|---|---|
| AbbVie(2 entities) | 29 | $391 |
| La Jolla Pharmaceutical Company | 9 | $157 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 2 | $127 |
| Johnson & Johnson | 5 | $68 |
| Merck | 2 | $43 |
| Shionogi Inc | 2 | $37 |
| Viiv Healthcare Company | 2 | $27 |
| Ferring Pharmaceuticals Inc. | 1 | $23 |
| Gilead | 1 | $13 |
| Paratek Pharmaceuticals, Inc. | 1 | $13 |
How this compares
$899 in reported general payments places this provider in the 60th percentile of 156 infectious disease 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 |
|---|---|---|
| ErtapenemErtapenem Sodium | 17 | $7,179 |
| Cefepime Hcl | 22 | $7,145 |
| Vancomycin Hcl | 28 | $6,153 |
| CeftriaxoneCeftriaxone Sodium | 14 | $191 |
Paid to pharmacies, not to this prescriber.
Other infectious disease in Memphis
- Michael GelfandMemphis$486K
- Kerry ClevelandMemphis$427K
- Nathan SummersMemphis$80K
- Stephen ThrelkeldMemphis$27K
- Imad OmerMemphis$22K
- Margarita LamotheMemphis$12K
- Daniel MurrellMemphis$12K
- James DaleMemphis$8K
- Michael ThrelkeldMemphis$5K
- Kristie NowakMemphis$2K
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.