Gregory Wagner
NPI 1215342423ActiveIndividual· Internal Medicine, Gastroenterology· Stamford, CT
Internal Medicine, Gastroenterology with Nuvance Health Medical Practice CT Inc, practicing in Stamford, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $118,438 for 187 claims, against $50,490 paid for services in 2024. Lists Danbury Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1215342423 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jun 25, 2014 |
| Last updated in NPPES | Aug 13, 2021 |
| Certified by provider | Aug 13, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 67480 | CT |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | 249 |
|---|---|
| Services billed | 460 across 32 procedure codes |
| Paid by Medicare | $50,490 |
Part D prescriptions in 2024
| Prescriptions (claims) | 187 · 309 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $118,438 |
| Generic share | 72% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Nuvance Health Medical Practice CT IncDanbury, CT · 747 clinicians
Hospital affiliations
- Danbury HospitalDanbury, CT
- Griffin HospitalDerby, CT
- Putnam Hospital CenterCarmel, NY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 gastroenterologists in Stamford · All gastroenterologists in Connecticut