Tammi Williams, MD
Obstetrics & Gynecology · Gilbert, AZNPI 1003876509
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 98.4% of the total across 88 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 27 manufacturers, the largest accounting for just 16.2% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2020 at $414 and has fallen 75.4% since, to $102 in 2025.
Across 88 payments — averaging $17.99 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$257
- Mayne Pharma Commercial LLC$150
- Coopersurgical, Inc.$150
- Avion Pharmaceuticals$111
- Bayer$111
- Therapeuticsmd, Inc.$86
- plus $719 from 21 others
What the payments were for
- Food & beverage$1,55998%
- Education$252%
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 | 17 | $257 |
| Mayne Pharma Commercial LLC | 3 | $150 |
| Coopersurgical, Inc. | 5 | $150 |
| Avion Pharmaceuticals | 8 | $111 |
| Bayer | 8 | $111 |
| Therapeuticsmd, Inc. | 7 | $86 |
| Applied Medical Resources Corporation | 1 | $75 |
| Hologic Sales And Service, LLC | 3 | $74 |
| Daiichi Sankyo Inc. | 4 | $66 |
| Merck | 3 | $57 |
| Lupin Inc. | 4 | $54 |
| Evofem Biosciences, Inc. | 2 | $47 |
| Medicem Inc. | 2 | $35 |
| Duchesnay USA Incorporated | 2 | $35 |
| Covidien LP | 2 | $32 |
| Astellas Pharma US Inc | 2 | $32 |
| Mylan Pharmaceuticals Inc. | 2 | $29 |
| Vertical Pharmaceuticals, LLC | 2 | $27 |
| AMAG Pharmaceuticals, Inc. | 2 | $25 |
| Pfizer | 2 | $23 |
| Optumhealth Care Solutions, LLC | 1 | $20 |
| Terumo Medical Corporation | 1 | $16 |
| Baxter Healthcare | 1 | $16 |
| Smith+Nephew | 1 | $15 |
| Biohaven Pharmaceuticals, Inc. | 1 | $14 |
| Exeltis, USA Inc. | 1 | $14 |
| Boston Scientific | 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.
- NEXTSTELLIS$120
How this compares
$1,584 in reported general payments places this provider in the 65th percentile of 757 obstetrics & gynecology providers in Arizona.
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.
Other obstetrics & gynecology in Gilbert
- Sheetal KaleGilbert$9K
- Catherine BrainardTucson$302K
- Micah HarrisScottsdale$217K
- Steven NelsonPhoenix$159K
- Ernesto GomezMesa$145K
- Bj HoPhoenix$134K
- Chijioke SoribePhoenix$117K
- Shruti BalaTucson$108K
- Heather ZechmanPhoenix$92K
- David GlassmanPhoenix$90K
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.