Silvio Alexander Mandara, MD
NPI 1134292881ActiveIndividual· Obstetrics & Gynecology, Gynecology· Stamford, CT
Obstetrics & Gynecology, Gynecology (MD) in Stamford, Connecticut, licensed in CT, with an NPI issued in November 2006. Their prescriptions cost Medicare Part D more than their services did: $91,974 for 494 claims, against $18,349 paid for services in 2024. Astellas Pharma US Inc was the largest of 5 companies reporting payments in 2025, $329.61 in all, mostly food and beverage. Lists Stamford Hospital as a hospital affiliation.
Overview
| NPI | 1134292881 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 17, 2006 |
| Last updated in NPPES | Jan 8, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology, Gynecology Primary | 207VG0400X | 22881 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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 | 150 |
|---|---|
| Services billed | 484 across 10 procedure codes |
| Paid by Medicare | $18,349 |
Part D prescriptions in 2024
| Prescriptions (claims) | 494 · 891 30-day fills |
|---|---|
| Patients | 143 |
| Total drug cost | $91,974 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1976 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Hospital affiliation
- Stamford HospitalStamford, CT
Industry payments (Open Payments)
- 2025$329.61 · 16 payments from 5 companies
- 2024$339.19 · 13 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $153.03 | 7 |
| Amgen Inc. | $94.70 | 5 |
| Mayne Pharma Commercial LLC | $37.47 | 2 |
| Sumitomo Pharma America, Inc. | $23.94 | 1 |
| Exact Sciences Corporation | $20.47 | 1 |
What the 2025 payments were for
- Food and Beverage$329.61 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gynecologists in Stamford
- 1457431934
- 1073847851
- 1275626673
- 1730817248
- 1902081011
- 1467645754
- 1780021550