Guillermo Guzman Trevino, MD
Obstetrics & Gynecology · Nampa, IDNPI 1881828010
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $12,807 of the $15,057 with a category attached, or 85.1%. Hologic Sales And Service, LLC accounts for 71.6% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2019 at $8,360 and has fallen 98.7% since, to $109 in 2024. Among obstetrics & gynecology clinicians in ID with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 27 payments — averaging $557.68 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Hologic Sales And Service, LLC$11K
- Gen-probe, Inc.$4K
- Intuitive Surgical$76
- AbbVie$74
- Astellas Pharma US Inc$34
- Bayer$31
- plus $62 from 3 others
What the payments were for
- Consulting fees$12,80785%
- Speaking & faculty fees$1,60011%
- Food & beverage$6504%
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 |
|---|---|---|
| Hologic Sales And Service, LLC | 12 | $10,781 |
| Gen-probe, Inc. | 2 | $4,000 |
| Intuitive Surgical | 1 | $76 |
| AbbVie | 5 | $74 |
| Astellas Pharma US Inc | 1 | $34 |
| Bayer | 2 | $31 |
| Merck | 2 | $24 |
| Conmed Corporation | 1 | $19 |
| Cook Medical LLC | 1 | $19 |
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.
- Cervical Cancer Screening$8,237
- Sexually Transmitted Infectious Disease$8,237
- Aptima$1,407
- THINPREP 2000 PROCESSOR$1,000
How this compares
$15,057 in reported general payments places this provider in the 95th percentile of 166 obstetrics & gynecology providers in Idaho.
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 | 21 | $2,332 |
| ElinestNorgestrel-Ethinyl Estradiol | 17 | $271 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in Nampa
- John MercerNampa$13K
- Gary GregersonNampa$8K
- Ryan PettitNampa$4K
- Philip DayleyNampa$3K
- Jeffery ReeseNampa$2K
- Brennan AndersonNampa$2K
- Aileen KingNampa$2K
- Ty EricksonIdaho Falls$286K
- Kim CoxPocatello$24K
- Kelly SiudzinskiMeridian$22K
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.