Margaret Ann Baumbusch, MD, FACOG
NPI 1225336134ActiveIndividual· Obstetrics & Gynecology· New Haven, CT
Obstetrics & Gynecology (MD, FACOG) in New Haven, Connecticut, trained at Yale University School of Medicine (class of 2009). In 2024 Medicare paid $8,118 for 50 patients, and Part D covered 81 of their prescriptions, 84% of them generic. Millicent US Inc was the largest of 3 companies reporting payments in 2025, $91.81 in all, mostly food and beverage.
Overview
| NPI | 1225336134 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, FACOG |
| Sole proprietor | No |
| NPI issued | Mar 2, 2011 |
| Last updated in NPPES | May 21, 2024 |
| Certified by provider | May 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 51924 | CT |
| Obstetrics & Gynecology | 207V00000X | A113503 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 50 |
|---|---|
| Services billed | 137 across 15 procedure codes |
| Paid by Medicare | $8,118 |
Part D prescriptions in 2024
| Prescriptions (claims) | 81 · 158 30-day fills |
|---|---|
| Patients | 41 |
| Total drug cost | $9,911 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Yale University School of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$91.81 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Millicent US Inc | $45.00 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $24.91 | 1 |
| Exeltis, USA Inc. | $21.90 | 1 |
What the 2025 payments were for
- Food and Beverage$46.81 · 2 payments
- Education$45.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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