Cristina Susana Wiese, MD
NPI 1710921564ActiveIndividual· Internal Medicine, Gastroenterology· Thousand Oaks, CA
Internal Medicine, Gastroenterology (MD) in Thousand Oaks, California, trained at New York Medical College (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $1,071,907 for 2,720 claims, against $195,017 paid for services in 2024. Salix Pharmaceuticals, A Division of Bausch Health US, LLC reported $19.95 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1710921564 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 15, 2006 |
| Last updated in NPPES | Jul 25, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A91425 | CA |
| Internal Medicine | 207R00000X | A91425 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,015 |
|---|---|
| Services billed | 1,685 across 30 procedure codes |
| Paid by Medicare | $195,017 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,720 · 5,697 30-day fills |
|---|---|
| Patients | 964 |
| Total drug cost | $1,071,907 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Gastroenterology |
Hospital affiliations
- Los Robles Hospital & Medical CenterThousand Oaks, CA
- St Johns Regional Medical CenterOxnard, CA
Industry payments (Open Payments)
- 2025$19.95 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $19.95 | 1 |
What the 2025 payments were for
- Food and Beverage$19.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 gastroenterologists in Thousand Oaks · All gastroenterologists in California