John William Kunstman, MD
NPI 1265666184ActiveIndividual· Surgery, Surgical Oncology· New Haven, CT
Surgery, Surgical Oncology (MD) in New Haven, Connecticut, trained at University of Wisconsin School of Medicine (class of 2009). Mostly services rather than prescriptions: Medicare paid $55,970 for 74 patients in 2024, with only 35 Part D claims. Dilon Technologies, Inc. was the largest of 2 companies reporting payments in 2025, $529.25 in all, mostly food and beverage.
Overview
| NPI | 1265666184 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 6, 2009 |
| Last updated in NPPES | Aug 29, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Surgical Oncology Primary | 2086X0206X | 61821 | CT |
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 - Surgical Oncology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 74 |
|---|---|
| Services billed | 141 across 26 procedure codes |
| Paid by Medicare | $55,970 |
Part D prescriptions in 2024
| Prescriptions (claims) | 35 · 44 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $36,244 |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Surgical Oncology |
| 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
Other facilities
- Elara CaringHome health agency · Rocky Hill, CT
Industry payments (Open Payments)
- 2025$529.25 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dilon Technologies, Inc. | $379.25 | 3 |
| Histosonics, Inc. | $150.00 | 1 |
What the 2025 payments were for
- Food and Beverage$529.25 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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