Patricia Shih-Ting Tsai, M.D.
NPI 1538100896ActiveIndividual· Internal Medicine, Gastroenterology· Newport Beach, CA
Internal Medicine, Gastroenterology (M.D.) in Newport Beach, California, trained at University of Chicago, Pritzker School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $577,285 for 2,393 claims, against $319,582 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 19 companies reporting payments in 2025, $5,208 in all, mostly food and beverage.
Overview
| NPI | 1538100896 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 9, 2006 |
| Last updated in NPPES | Jun 7, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A64184 | 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 | 643 |
|---|---|
| Services billed | 4,697 across 27 procedure codes |
| Paid by Medicare | $319,582 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,393 · 4,099 30-day fills |
|---|---|
| Patients | 697 |
| Total drug cost | $577,285 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Chicago, Pritzker School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$5,208 · 158 payments from 19 companies
- 2024$4,426 · 168 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $882.34 | 17 |
| Abbvie Inc. | $711.25 | 34 |
| Janssen Biotech, Inc. | $681.22 | 20 |
| Ardelyx, Inc. | $490.36 | 15 |
| Pfizer Inc. | $396.08 | 18 |
What the 2025 payments were for
- Food and Beverage$5,208 · 158 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 gastroenterologists in Newport Beach · All gastroenterologists in California