Crystal Wallace, NP
Nurse Practitioner · Hattiesburg, MSNPI 1629550496
Payments from drug & device makers
Across 33 payments — averaging $16.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$131
- Collegium Pharmaceutical, Inc.$77
- Amgen$59
- Exact Sciences$41
- Novo Nordisk$41
- Johnson & Johnson$38
- plus $161 from 8 others
What the payments were for
- Food & beverage$549100%
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 | 6 | $131 |
| Collegium Pharmaceutical, Inc. | 5 | $77 |
| Amgen | 4 | $59 |
| Exact Sciences | 2 | $41 |
| Novo Nordisk | 2 | $41 |
| Johnson & Johnson | 2 | $38 |
| Boston Scientific | 2 | $31 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $24 |
| Medtronic | 1 | $23 |
| Tris Pharma Inc | 1 | $21 |
| Scpharmaceuticals Inc. | 1 | $20 |
| Phathom Pharmaceuticals, Inc. | 2 | $15 |
| AstraZeneca | 1 | $14 |
| Genentech USA, Inc. | 3 | $13 |
How this compares
$549 in reported general payments places this provider in the 65th percentile of 1,090 nurse practitioner providers in Mississippi.
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 |
|---|---|---|
| Albuterol Sulfate HfaAlbuterol Sulfate | 43 | $1,120 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 122 | $973 |
| Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst | 39 | $518 |
| Azithromycin | 96 | $489 |
| Doxycycline Hyclate | 84 | $471 |
| Cefdinir | 24 | $454 |
| Mupirocin | 45 | $429 |
| Oseltamivir Phosphate | 11 | $262 |
| Fluticasone Propionate | 14 | $184 |
| Cephalexin | 27 | $132 |
| Ondansetron OdtOndansetron | 11 | $106 |
| Prednisone | 70 | $98 |
| Fluconazole | 15 | $61 |
| Cyclobenzaprine Hcl | 24 | $52 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 17 | $41 |
Paid to pharmacies, not to this prescriber.
Other nurse practitioner in Hattiesburg
- Kaylon LewisHattiesburg$25K
- Lindsey MillerHattiesburg$13K
- Brittany RobertsHattiesburg$5K
- Sarah KellyHattiesburg$5K
- Christina TreppendahlRidgeland$673K
- Catherine WellsJackson$75K
- Jo Anna WarrenJackson$73K
- Marisa StringerBiloxi$68K
- Sara KlausFlowood$48K
- Micaela PerkinsOxford$32K
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.