Cassius Iyad N. Ochoa Chaar, M.D., M.S.
NPI 1669600698ActiveIndividual· Surgery, Vascular Surgery· New Haven, CT
Surgery, Vascular Surgery (M.D., M.S.) with Yale University, practicing in New Haven, Connecticut. In 2024 Medicare paid $99,592 for 192 patients, and Part D covered 98 of their prescriptions, 66% of them generic. Stryker Corporation was the largest of 3 companies reporting payments in 2025, $401.09 in all, mostly food and beverage. Lists Bridgeport Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1669600698 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., M.S. |
| Sole proprietor | Yes |
| NPI issued | Jun 29, 2009 |
| Last updated in NPPES | Oct 8, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 049872 | CT |
| Specialist | 174400000X | MT195605 | PA |
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 - Vascular Surgery (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 192 |
|---|---|
| Services billed | 622 across 97 procedure codes |
| Paid by Medicare | $99,592 |
Part D prescriptions in 2024
| Prescriptions (claims) | 98 · 192 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $32,046 |
| Generic share | 66% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Vascular Surgery |
| Secondary specialties | General Surgery |
| Telehealth | Offers telehealth |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Greenwich Hospital Association -Greenwich, CT
- Lawrence & Memorial HospitalNew London, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$401.09 · 4 payments from 3 companies
- 2024$468.42 · 5 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $189.35 | 1 |
| Penumbra, Inc. | $160.34 | 1 |
| Merck Sharp & Dohme LLC | $51.40 | 2 |
What the 2025 payments were for
- Food and Beverage$349.69 · 2 payments
- Education$51.40 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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