Ann Gessner, DO
Obstetrics & Gynecology · Marshalltown, IANPI 1598768269
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 92.6% of the total across 178 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 28 manufacturers reported payments, led by AbbVie at 26.6% of the total.
Across 178 payments — averaging $19.62 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$928
- Astellas Pharma US Inc$506
- Pfizer$227
- Biogen$202
- Exeltis, USA Inc.$196
- Therapeuticsmd, Inc.$189
- plus $1K from 22 others
What the payments were for
- Food & beverage$3,23293%
- Education$2607%
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) | 53 | $928 |
| Astellas Pharma US Inc | 15 | $506 |
| Pfizer | 11 | $227 |
| Biogen | 8 | $202 |
| Exeltis, USA Inc. | 12 | $196 |
| Therapeuticsmd, Inc. | 13 | $189 |
| Bayer | 10 | $164 |
| Coopersurgical, Inc. | 6 | $103 |
| Myovant Sciences Inc. | 6 | $99 |
| Caldera Medical, Inc | 1 | $98 |
| Sumitomo Pharma America, Inc. | 5 | $95 |
| Idorsia Pharmaceuticals US Inc | 5 | $93 |
| Hologic Sales And Service, LLC | 5 | $81 |
| Mayne Pharma Commercial LLC | 5 | $76 |
| Daiichi Sankyo Inc. | 3 | $73 |
| Biohaven Pharmaceutical Holding Company Ltd. | 2 | $48 |
| Octapharma USA, Inc. | 2 | $48 |
| Merck | 3 | $47 |
| Medtronic | 1 | $28 |
| Amgen | 2 | $26 |
| Exact Sciences | 1 | $26 |
| Organon | 2 | $25 |
| Agile Therapeutics, Inc. | 2 | $24 |
| Davol Inc. | 1 | $23 |
| Minerva Surgical, Inc | 1 | $19 |
| Mallinckrodt Enterprises LLC | 1 | $18 |
| Novo Nordisk | 1 | $16 |
| Smith+Nephew | 1 | $14 |
How this compares
$3,492 in reported general payments places this provider in the 85th percentile of 274 obstetrics & gynecology 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 |
|---|---|---|
| Estradiol | 23 | $1,561 |
| Solifenacin Succinate | 17 | $536 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in Marshalltown
- Jorge SotolongoCouncil Bluffs$171K
- Laura NealDubuque$157K
- Amy BingamanDes Moines$44K
- Alvadore OsbornWest Des Moines$34K
- Jason RexrothCedar Rapids$16K
- Maxwell MageeWest Des Moines$16K
- Lori PlattCouncil Bluffs$14K
- Heather MarthersWaterloo$14K
- Jerry RozeboomCedar Rapids$12K
- Emily Boevers SolversonIowa City$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.