Cynthia Ronan, MD
Obstetrics & Gynecology · Derby, CTNPI 1346251659
Payments from drug & device makers
Across 521 payments — averaging $19.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Exeltis, USA Inc.$3K
- AbbVie$1K
- Astellas Pharma US Inc$824
- Mayne Pharma Commercial LLC$681
- Sumitomo Pharma America, Inc.$665
- Pfizer$553
- plus $3K from 29 others
What the payments were for
- Food & beverage$9,971100%
- Education$450%
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 |
|---|---|---|
| Exeltis, USA Inc. | 164 | $3,124 |
| AbbVie(2 entities) | 80 | $1,301 |
| Astellas Pharma US Inc | 43 | $824 |
| Mayne Pharma Commercial LLC | 33 | $681 |
| Sumitomo Pharma America, Inc. | 37 | $665 |
| Pfizer | 26 | $553 |
| Therapeuticsmd, Inc. | 19 | $339 |
| Exact Sciences | 12 | $327 |
| Ardelyx, Inc. | 19 | $300 |
| Agile Therapeutics, Inc. | 12 | $236 |
| Davol Inc. | 2 | $226 |
| Lupin Inc. | 14 | $207 |
| Sage Therapeutics, LLC | 8 | $179 |
| Vertical Pharmaceuticals, LLC | 6 | $104 |
| Millicent US Inc | 3 | $91 |
| Avion Pharmaceuticals | 4 | $83 |
| Evofem Biosciences, Inc. | 4 | $80 |
| Duchesnay USA Incorporated | 4 | $73 |
| Hologic Sales And Service, LLC | 4 | $69 |
| Aspira Women's Health Inc | 3 | $66 |
| Coopersurgical, Inc. | 3 | $62 |
| Organon | 3 | $55 |
| Conmed Corporation | 2 | $54 |
| Supernus Pharmaceuticals, Inc. | 2 | $46 |
| Mission Pharmacal Company | 2 | $34 |
| Mylan Pharmaceuticals Inc. | 2 | $32 |
| Urovant Sciences Inc | 2 | $32 |
| QOL Medical, LLC | 1 | $29 |
| Merck | 1 | $29 |
| Shield Therapeutics Inc | 1 | $24 |
| Scynexis, Inc. | 1 | $22 |
| Medtronic | 1 | $22 |
| Minerva Surgical, Inc | 1 | $19 |
| Monaghan Medical Corporation | 1 | $14 |
| BD | 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.
How this compares
$10,016 in reported general payments places this provider in the 95th percentile of 605 obstetrics & gynecology providers in Connecticut.
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 |
|---|---|---|
| GemtesaVibegron | 15 | $17,780 |
| MyrbetriqMirabegron | 11 | $14,952 |
| PremarinEstrogens, Conjugated | 32 | $9,153 |
| ValacyclovirValacyclovir Hcl | 26 | $1,675 |
| Estradiol | 39 | $1,354 |
| Raloxifene Hcl | 18 | $965 |
| Metronidazole | 17 | $558 |
| Nitrofurantoin Mono-MacroNitrofurantoin Monohyd/M-Cryst | 25 | $522 |
| Medroxyprogesterone Acetate | 21 | $471 |
| Nystatin | 14 | $264 |
| Fluconazole | 23 | $149 |
| Terconazole | 11 | $141 |
| Zolpidem Tartrate | 13 | $131 |
| Ibuprofen | 12 | $37 |
| Alprazolam | 17 | $30 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Sumitomo Pharma America, Inc.Gemtesa | $665 | $17,78015 claims |
| Astellas Pharma US IncMyrbetriq | $824 | $14,95211 claims |
| PfizerPremarin | $553 | $9,15332 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 605 obstetrics & gynecology providers in Connecticut.
Other obstetrics & gynecology in Derby
- Alessandro SantinNew Haven$14.1M
- Mark LeondiresNorwalk$1.4M
- Alan FineHartford$974K
- Mary MinkinNew Haven$285K
- Elena RatnerNew Haven$119K
- Frederick RauHartford$89K
- Daniel WellingManchester$63K
- Peter AuerbachGroton$41K
- Sangini ShethNew Haven$39K
- Shieva GhofranyStamford$33K
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.