Karen Kohatsu
Obstetrics & Gynecology · San Diego, CANPI 1679517239
Payments from drug & device makers
Across 484 payments — averaging $37.36 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$12K
- Mayne Pharma Commercial LLC$1K
- Evofem Biosciences, Inc.$496
- Sumitomo Pharma America, Inc.$483
- Avion Pharmaceuticals$378
- Therapeuticsmd, Inc.$350
- plus $3K from 32 others
What the payments were for
- Speaking & faculty fees$8,95049%
- Food & beverage$9,06850%
- Education$660%
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(2 entities) | 146 | $12,486 |
| Mayne Pharma Commercial LLC | 69 | $1,366 |
| Evofem Biosciences, Inc. | 38 | $496 |
| Sumitomo Pharma America, Inc. | 43 | $483 |
| Avion Pharmaceuticals | 41 | $378 |
| Therapeuticsmd, Inc. | 24 | $350 |
| Myovant Sciences Inc. | 22 | $275 |
| Astellas Pharma US Inc | 4 | $203 |
| Galderma Laboratories, L.p. | 7 | $201 |
| Aspira Women's Health Inc | 7 | $175 |
| Exact Sciences | 9 | $166 |
| AstraZeneca | 1 | $125 |
| Organon | 6 | $117 |
| Hologic Sales And Service, LLC | 6 | $104 |
| Roche Diagnostics Corporation | 4 | $102 |
| Coopersurgical, Inc. | 5 | $102 |
| Millicent US Inc | 5 | $100 |
| Pfizer | 5 | $96 |
| Exeltis, USA Inc. | 5 | $92 |
| Lupin Inc. | 5 | $86 |
| BD | 4 | $86 |
| Merck | 4 | $76 |
| Daiichi Sankyo Inc. | 3 | $45 |
| Impel Pharmaceuticals Inc. | 2 | $42 |
| Duchesnay USA Incorporated | 2 | $39 |
| AMAG Pharmaceuticals, Inc. | 2 | $36 |
| Bayer | 2 | $36 |
| Mycovia Pharmaceuticals, Inc. | 2 | $30 |
| Minerva Surgical, Inc | 2 | $28 |
| Revance Therapeutics, Inc. | 1 | $24 |
| Agile Therapeutics, Inc. | 1 | $22 |
| Iroko Pharmaceuticals, LLC | 1 | $21 |
| Acella Pharmaceuticals, LLC | 1 | $18 |
| Myriad Women's Health, Inc. | 1 | $17 |
| Olympus America Inc. | 1 | $16 |
| Dysis Medical, Inc. | 1 | $16 |
| Ascend Therapeutics US, LLC | 1 | $15 |
| Meditrina | 1 | $14 |
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
$18,084 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| CombipatchEstradiol/Norethindrone Acet | 17 | $5,273 |
| ProgesteroneProgesterone, Micronized | 73 | $4,221 |
| Estradiol (Twice Weekly)Estradiol | 30 | $3,805 |
| Estradiol | 67 | $2,158 |
| Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst | 35 | $1,259 |
| Clobetasol Propionate | 14 | $843 |
| Nystatin-TriamcinoloneNystatin/Triamcinolone Acet | 14 | $498 |
| Nystatin | 28 | $321 |
| Acyclovir | 16 | $185 |
| Fluconazole | 22 | $158 |
| Cephalexin | 19 | $151 |
| Metformin Hcl | 17 | $143 |
| Medroxyprogesterone Acetate | 14 | $138 |
| Triamcinolone Acetonide | 26 | $116 |
| Ciprofloxacin Hcl | 25 | $65 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in San Diego
- Rovena ReaganSan Diego$1.7M
- Denis TarakjianSan Diego$973K
- Sheila ModySan Diego$465K
- Antoinette Marengo BarbickSan Diego$141K
- Peyman BanooniBeverly Hills$9.2M
- Vellore BhupathyWhittier$4.3M
- Edwin RamirezOxnard$3.5M
- Nam TranSan Francisco$3M
- Dmitriy RomanenkoSouth Gate$2.7M
- Anita NelsonTorrance$2.1M
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.