Michelle Birkenholz, DO
Obstetrics · Dublin, OHNPI 1083889216
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $24,555 of the $29,833 with a category attached, or 82.3%. Organon accounts for 91.5% of it on its own, with 14 other manufacturers making up the rest. Reporting peaked in 2023 at $16,400 and has fallen 94.3% since, to $938 in 2025. Among obstetrics clinicians in OH 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 82 payments — averaging $363.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Organon$27K
- Alydia Health$766
- Hologic Sales And Service, LLC$664
- Aspira Women's Health Inc$295
- Therapeuticsmd, Inc.$251
- Minerva Surgical, Inc$195
- plus $350 from 9 others
What the payments were for
- Consulting fees$1,9176%
- Speaking & faculty fees$24,55582%
- Travel & lodging$1,5765%
- Food & beverage$1,7856%
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 |
|---|---|---|
| Organon | 36 | $27,311 |
| Alydia Health | 4 | $766 |
| Hologic Sales And Service, LLC | 13 | $664 |
| Aspira Women's Health Inc | 7 | $295 |
| Therapeuticsmd, Inc. | 7 | $251 |
| Minerva Surgical, Inc | 4 | $195 |
| Gynesonics, Inc. | 1 | $156 |
| Mayne Pharma Commercial LLC | 3 | $46 |
| Meditrina | 1 | $30 |
| Intuitive Surgical | 1 | $27 |
| Conmed Corporation | 1 | $24 |
| Exact Sciences | 1 | $24 |
| Bayer | 1 | $15 |
| Astellas Pharma US Inc | 1 | $15 |
| Avion Pharmaceuticals | 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
$29,833 in reported general payments places this provider in the 95th percentile of 39 obstetrics providers in Ohio.
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 | 33 | $2,177 |
| ValacyclovirValacyclovir Hcl | 22 | $496 |
| ProgesteroneProgesterone, Micronized | 11 | $371 |
| Oxybutynin Chloride | 11 | $12 |
Paid to pharmacies, not to this prescriber.
Other obstetrics in Dublin
- Rebekah McClainDublin$2K
- Rebecca FlycktCleveland$10K
- Jennifer MittlesteadDayton$9K
- Bonnie CorleyGrove City$9K
- Elizabeth VenardCincinnati$6K
- Chanel SinclairGrandview Heights$3K
- Blaise MilburnSteubenville$2K
- Melinda SmithPoland$2K
- Amanda WhittakerToledo$2K
- Barry FishFairlawn$2K
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.