Mary Missak, MD
Internal Medicine · Southaven, MSNPI 1962507061
Payments from drug & device makers
Across 291 payments — averaging $16.48 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novo Nordisk$983
- Lilly USA, LLC$660
- Boehringer Ingelheim$482
- GSK$380
- Bayer$362
- Johnson & Johnson$313
- plus $2K from 23 others
What the payments were for
- Food & beverage$4,797100%
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 |
|---|---|---|
| Novo Nordisk | 63 | $983 |
| Lilly USA, LLC | 47 | $660 |
| Boehringer Ingelheim | 30 | $482 |
| GSK | 23 | $380 |
| Bayer | 20 | $362 |
| Johnson & Johnson | 22 | $313 |
| Astellas Pharma US Inc | 16 | $272 |
| Abbott | 13 | $259 |
| Intuitive Surgical | 2 | $173 |
| AstraZeneca | 11 | $163 |
| Pfizer | 7 | $108 |
| AbbVie | 5 | $106 |
| Sanofi-aventis U.S. LLC | 6 | $103 |
| Sumitomo Pharma America, Inc. | 4 | $66 |
| Teva Pharmaceuticals USA, Inc. | 3 | $49 |
| Otsuka America Pharmaceutical, Inc. | 2 | $48 |
| Phathom Pharmaceuticals, Inc. | 3 | $45 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $37 |
| Idorsia Pharmaceuticals US Inc | 2 | $31 |
| Azurity Pharmaceuticals, Inc. | 1 | $22 |
| Exact Sciences | 1 | $20 |
| Amgen | 1 | $19 |
| Novartis | 1 | $18 |
| Kowa Pharmaceuticals America, Inc. | 1 | $14 |
| Dexcom, Inc. | 1 | $14 |
| Shield Therapeutics Inc | 1 | $13 |
| Hikma Pharmaceuticals USA | 1 | $13 |
| Merck | 1 | $12 |
| Sanofi Pasteur Inc. | 1 | $12 |
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
$4,797 in reported general payments places this provider in the 85th percentile of 846 internal medicine 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 |
|---|---|---|
| MounjaroTirzepatide | 39 | $57,855 |
| EliquisApixaban | 48 | $50,877 |
| OzempicSemaglutide | 30 | $49,807 |
| JardianceEmpagliflozin | 26 | $35,771 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 36 | $32,847 |
| XareltoRivaroxaban | 30 | $31,651 |
| JanuviaSitagliptin Phosphate | 18 | $26,035 |
| LinzessLinaclotide | 12 | $14,615 |
| MyrbetriqMirabegron | 23 | $12,827 |
| FarxigaDapagliflozin Propanediol | 20 | $12,408 |
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 34 | $5,453 |
| Fluticasone-SalmeterolFluticasone Propion/Salmeterol | 11 | $4,554 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 98 | $3,375 |
| Soliqua 100-33Insulin Glargine/Lixisenatide | 15 | $2,625 |
| Levothyroxine Sodium | 247 | $2,340 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Lilly USA, LLCMounjaro | $660 | $57,85539 claims |
| PfizerEliquis | $108 | $50,87748 claims |
| Novo NordiskOzempic | $983 | $49,80730 claims |
| Boehringer IngelheimJardiance | $482 | $35,77126 claims |
| GSKTrelegy Ellipta | $380 | $32,84736 claims |
| Johnson & JohnsonXarelto | $313 | $31,65130 claims |
| MerckJanuvia | $12 | $26,03518 claims |
| AbbVieLinzess, Synthroid | $106 | $15,77443 claims |
| Astellas Pharma US IncMyrbetriq | $272 | $12,82723 claims |
| AstraZenecaFarxiga | $163 | $12,40820 claims |
| Sanofi-aventis U.S. LLCSoliqua 100-33 | $103 | $2,62515 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 85th percentile of 846 internal medicine providers in Mississippi.
Other internal medicine in Southaven
- James HallBrookhaven$4.8M
- Bob HutchinsJackson$4.6M
- Sidney GortonBelzoni$571K
- David PendleyGulfport$336K
- Sarah KerutJackson$319K
- Gabriel HernandezJackson$196K
- Kelly WilkinsonJackson$183K
- Magdy Gorgi-MikhailBiloxi$157K
- Christina BarlowJackson$129K
- Arnold JacksonHattiesburg$121K
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.