Amber Davidson
Medical · Greenfield, TNNPI 1891334926
Payments from drug & device makers
Across 10 payments — averaging $16.56 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Dexcom, Inc.$24
- AstraZeneca$22
- GSK$20
- ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.)$19
- Sanofi Pasteur Inc.$19
- Mylan Specialty L.p.$16
- plus $45 from 4 others
What the payments were for
- Food & beverage$166100%
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 |
|---|---|---|
| Dexcom, Inc. | 1 | $24 |
| AstraZeneca | 1 | $22 |
| GSK | 1 | $20 |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 1 | $19 |
| Sanofi Pasteur Inc. | 1 | $19 |
| Mylan Specialty L.p. | 1 | $16 |
| AbbVie | 1 | $16 |
| Boehringer Ingelheim | 1 | $13 |
| Phathom Pharmaceuticals, Inc. | 1 | $13 |
| Genentech USA, Inc. | 1 | $3 |
How this compares
$166 in reported general payments places this provider in the 30th percentile of 480 medical 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 |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 61 | $1,221 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 25 | $583 |
| Gabapentin | 51 | $510 |
| Fluticasone Propionate | 44 | $417 |
| Omeprazole | 19 | $350 |
| Atorvastatin Calcium | 34 | $341 |
| Pantoprazole Sodium | 21 | $303 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 12 | $279 |
| Montelukast Sodium | 17 | $175 |
| Vitamin D2Ergocalciferol (Vitamin D2) | 15 | $174 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 14 | $171 |
| Levothyroxine Sodium | 11 | $156 |
| Ciprofloxacin Hcl | 17 | $152 |
| Methylprednisolone | 15 | $138 |
| Cephalexin | 17 | $99 |
Paid to pharmacies, not to this prescriber.
Other medical in Greenfield
- Maria WoodChattanooga$130K
- Alyssa JamesonFranklin$65K
- Melissa LambertHendersonville$47K
- Stephanie HowardKnoxville$18K
- Evan HatfillNashville$18K
- Meredith McDanielChattanooga$17K
- Janet BreedingKnoxville$15K
- Paul MabenKnoxville$13K
- Hannah KirkGreeneville$13K
- Scarlett FordNashville$12K
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.