John D. Wysocki, MD
NPI 1457594103ActiveIndividual· Internal Medicine, Gastroenterology· South Windsor, CT
Internal Medicine, Gastroenterology (MD) in South Windsor, Connecticut, trained at Tulane University School of Medicine (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $3,639,521 for 1,348 claims, against $178,511 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $2,466 in all, mostly food and beverage.
Overview
| NPI | 1457594103 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 10, 2009 |
| Last updated in NPPES | Jul 21, 2022 |
| Certified by provider | Dec 12, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 055947 | 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 - Gastroenterology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 250 |
|---|---|
| Services billed | 8,256 across 40 procedure codes |
| Paid by Medicare | $178,511 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,348 · 2,387 30-day fills |
|---|---|
| Patients | 357 |
| Total drug cost | $3,639,521 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Hartford Healthcare Medical Group Specialists PLLCBridgeport, CT · 1,588 clinicians
- Connecticut Gi PLLCWallingford, CT · 248 clinicians
Hospital affiliations
- Griffin HospitalDerby, CT
- Hartford HospitalHartford, CT
Industry payments (Open Payments)
- 2025$2,466 · 110 payments from 15 companies
- 2024$3,306 · 112 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $1,048 | 46 |
| Takeda Pharmaceuticals U.S.A., Inc. | $470.30 | 19 |
| Janssen Biotech, Inc. | $207.55 | 11 |
| Lilly USA, LLC | $186.35 | 9 |
| Ardelyx, Inc. | $155.89 | 8 |
What the 2025 payments were for
- Food and Beverage$2,447 · 108 payments
- Education$19.30 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in South Windsor
- 1144665969
- 1164600615
- 1306821863