Mitchell Creinin, MD
Obstetrics & Gynecology · Sacramento, CANPI 1801868484
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (58.6%), consulting fees and travel and lodging — rather than concentrated in one kind of arrangement. Mayne Pharma Commercial LLC accounts for 68.3% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2023 at $54,990 and has fallen 84.5% since, to $8,504 in 2025. Among obstetrics & gynecology clinicians in CA 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 317 payments — averaging $630.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mayne Pharma Commercial LLC$137K
- Organon$26K
- Medicines360$16K
- Merck$12K
- Viiv Healthcare Company$5K
- AbbVie$3K
- plus $1K from 2 others
Across 238 payments — averaging $4226.59 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Organon$351K
- Sumitomo Pharma America, Inc.$246K
- Exeltis, USA Inc.$153K
- Evofem Biosciences, Inc.$127K
- Merck$53K
- Sebela Pharmaceuticals Inc.$50K
- plus $25K from 3 others
What the payments were for
- Consulting fees$37,19819%
- Speaking & faculty fees$117,21559%
- Travel & lodging$27,94714%
- Food & beverage$14,5717%
- Education$3,0402%
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 | 67 | $136,551 |
| Organon | 25 | $26,237 |
| Medicines360 | 200 | $15,620 |
| Merck | 11 | $12,404 |
| Viiv Healthcare Company | 2 | $5,200 |
| AbbVie | 2 | $2,622 |
| Bayer | 9 | $1,215 |
| AMAG Pharmaceuticals, Inc. | 1 | $122 |
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
$199,971 in reported general payments places this provider in the 95th percentile of 3,784 obstetrics & gynecology providers in California.
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 Sacramento
- Wilfredo RamosSacramento$55K
- Cheryl WalkerSacramento$46K
- Steve YuNorthridge$964K
- Samir HageRedlands$640K
- Malcolm MunroLos Angeles$609K
- Michael KrychmanCosta Mesa$547K
- Anita NelsonTorrance$530K
- Jan SegnitzSan Jose$511K
- Risa KaganBerkeley$497K
- Michael GreenOxnard$424K
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.