Grant Doolittle, DO
Internal Medicine · Ames, IANPI 1457464836
Payments from drug & device makers
Across 4 payments — averaging $34.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$87
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$29
- Itamar Medical Inc$23
What the payments were for
- Food & beverage$11079%
- Education$2921%
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 | 1 | $87 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 2 | $29 |
| Itamar Medical Inc | 1 | $23 |
How this compares
$139 in reported general payments places this provider in the 50th percentile of 583 internal medicine providers in Iowa.
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 |
|---|---|---|
| EliquisApixaban | 239 | $252,470 |
| JanuviaSitagliptin Phosphate | 104 | $104,258 |
| JardianceEmpagliflozin | 46 | $70,427 |
| XareltoRivaroxaban | 25 | $40,891 |
| OzempicSemaglutide | 33 | $30,225 |
| TrulicityDulaglutide | 23 | $25,467 |
| Repatha SyringeEvolocumab | 35 | $20,190 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 19 | $15,186 |
| MovantikNaloxegol Oxalate | 16 | $10,995 |
| Atorvastatin Calcium | 1,135 | $9,723 |
| Basaglar Kwikpen U-100Insulin Glargine,hum.Rec.Anlog | 30 | $6,938 |
| Breo ElliptaFluticasone/Vilanterol | 18 | $6,524 |
| Advair HfaFluticasone Propion/Salmeterol | 11 | $6,414 |
| TrintellixVortioxetine Hydrobromide | 26 | $6,343 |
| Rosuvastatin Calcium | 580 | $6,007 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Ames
- Shauna BasenerAmes$127K
- Kathleen JonesWest Des Moines$7.6M
- Jennifer KillionAmes,$4.9M
- Lena Rydberg FreeseWest Des Moines$1.8M
- Isam MararCouncil Bluffs$1.5M
- Mark JohnsonMason City$223K
- Ryan TomlinsonDes Moines$209K
- Mark CarlsonSioux City$174K
- Madalyn WalshIowa City$80K
- Alan KricsfeldCouncil Bluffs$49K
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.