Gayle Simmons, MD
Obstetrics & Gynecology · Downers Grove, ILNPI 1154482024
Payments from drug & device makers
Across 163 payments — averaging $19.30 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mayne Pharma Commercial LLC$508
- Exeltis, USA Inc.$282
- Hologic Sales And Service, LLC$262
- Amgen$220
- AbbVie$182
- Avion Pharmaceuticals$181
- plus $2K from 26 others
What the payments were for
- Food & beverage$3,09498%
- Education$512%
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 |
|---|---|---|
| Mayne Pharma Commercial LLC | 25 | $508 |
| Exeltis, USA Inc. | 18 | $282 |
| Hologic Sales And Service, LLC | 8 | $262 |
| Amgen | 11 | $220 |
| AbbVie(2 entities) | 6 | $182 |
| Avion Pharmaceuticals | 12 | $181 |
| Therapeuticsmd, Inc. | 9 | $145 |
| Myovant Sciences Inc. | 6 | $128 |
| Merck | 6 | $104 |
| Pfizer | 6 | $103 |
| Coopersurgical, Inc. | 5 | $98 |
| GSK | 5 | $89 |
| Astellas Pharma US Inc | 4 | $89 |
| Duchesnay USA Incorporated | 6 | $84 |
| Lilly USA, LLC | 4 | $73 |
| Exact Sciences | 3 | $73 |
| Bayer | 3 | $68 |
| Novo Nordisk | 3 | $56 |
| Agile Therapeutics, Inc. | 3 | $52 |
| AMAG Pharmaceuticals, Inc. | 3 | $51 |
| Organon | 2 | $49 |
| Ascend Therapeutics US, LLC | 3 | $42 |
| Johnson & Johnson | 1 | $36 |
| Mylan Pharmaceuticals Inc. | 2 | $31 |
| Evofem Biosciences, Inc. | 2 | $26 |
| Daiichi Sankyo Inc. | 1 | $20 |
| AstraZeneca | 1 | $19 |
| Minerva Surgical, Inc | 1 | $17 |
| Sanara Medtech Inc. | 1 | $16 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $14 |
| Xeris Pharmaceuticals, Inc. | 1 | $14 |
| Teva Pharmaceuticals USA, Inc. | 1 | $13 |
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
$3,146 in reported general payments places this provider in the 85th percentile of 1,732 obstetrics & gynecology providers in Illinois.
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 | 57 | $2,602 |
| Raloxifene Hcl | 11 | $768 |
| ProgesteroneProgesterone, Micronized | 16 | $617 |
| Clobetasol Propionate | 15 | $510 |
| Alendronate Sodium | 19 | $188 |
| ValacyclovirValacyclovir Hcl | 17 | $129 |
| Medroxyprogesterone Acetate | 11 | $125 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in Downers Grove
- Phyllis MarxSkokie$2M
- Mary Jenkins VogelEvanston$886K
- Charles MillerNaperville$603K
- Lee ShulmanChicago$577K
- Anne SchaibleOak Lawn$546K
- Christopher OlsonNaperville$530K
- Laura PearlmanSkokie$426K
- Maria TamChicago$378K
- Amy WhitakerChicago$351K
- Gregory UrsinoChicago$242K
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.