William Vasilos Kastrinakis, MD
NPI 1164481743ActiveIndividual· Surgery· Danvers, MA
Surgery (MD) in Danvers, Massachusetts, trained at Tufts University School of Medicine (class of 1990). 451 Medicare patients in 2024, $188,376 paid; nearly all of their 100 Part D prescriptions were generic (91%). Medtronic, Inc. reported $739.91 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1164481743 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2006 |
| Last updated in NPPES | May 18, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 75212 | MA |
| Surgery, Surgical Critical Care | 2086S0102X | 75212 | MA |
| Surgery, Pediatric Surgery | 2086S0120X | 75212 | MA |
| Surgery, Trauma Surgery | 2086S0127X | 75212 | MA |
| Surgery, Surgical Oncology | 2086X0206X | 75212 | MA |
| Colon & Rectal Surgery | 208C00000X | 75212 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 451 |
|---|---|
| Services billed | 800 across 113 procedure codes |
| Paid by Medicare | $188,376 |
Part D prescriptions in 2024
| Prescriptions (claims) | 100 · 112 30-day fills |
|---|---|
| Patients | 73 |
| Total drug cost | $4,950 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | General Surgery |
| Telehealth | Offers telehealth |
Medical group
- Massachusetts General Physicians Organization IncBoston, MA · 3,558 clinicians
Hospital affiliations
- Massachusetts General HospitalBoston, MA
- North Shore Medical Center -Salem, MA
Other facilities
- Mass General Brigham Home Care, IncHome health agency · Newton, MA
Industry payments (Open Payments)
- 2025$739.91 · 8 payments from 1 company
- 2024$2,802 · 12 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $739.91 | 8 |
What the 2025 payments were for
- Food and Beverage$739.91 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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