Helmut V. Ammon, M.D.
NPI 1457387896ActiveIndividual· Internal Medicine, Gastroenterology· Milwaukee, WI
Internal Medicine, Gastroenterology (M.D.) with The Medical College of Wisconsin Inc, practicing in Milwaukee, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $18,576 for 89 claims, against $1,510 paid for services in 2024. Lists Froedtert Memorial Lutheran Hospital as a hospital affiliation.
Overview
| NPI | 1457387896 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 25, 2006 |
| Last updated in NPPES | Oct 22, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 18489 | WI |
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 - Gastroenterology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 22 across 7 procedure codes |
| Paid by Medicare | $1,510 |
Part D prescriptions in 2024
| Prescriptions (claims) | 89 · 162 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $18,576 |
| Generic share | 69% of claims |
Education and affiliations
| Graduation year | 1963 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- The Medical College of Wisconsin IncMilwaukee, WI · 2,115 clinicians
Hospital affiliation
- Froedtert Memorial Lutheran HospitalMilwaukee, WI
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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