Shima Ghavimi, M.D.
NPI 1811316458ActiveIndividual· Internal Medicine, Gastroenterology· Corona, CA
Internal Medicine, Gastroenterology (M.D.) with Allen Memorial Hospital Corporation, practicing in Corona, California. In 2024 Medicare paid $76,193 for 314 patients, and Part D covered 627 of their prescriptions, 84% of them generic. Phathom Pharmaceuticals, Inc. was the largest of 3 companies reporting payments in 2025, $180.42 in all, mostly food and beverage. Lists Allen Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1811316458 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 10, 2014 |
| Last updated in NPPES | Aug 28, 2026 |
| Certified by provider | Aug 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | C208749 | CA |
| Internal Medicine, Gastroenterology | 207RG0100X | MD-50743 | IA |
| Internal Medicine | 207R00000X | 29355 | WV |
| Internal Medicine, Hepatology | 207RI0008X | C208749 | CA |
| Internal Medicine | 207R00000X | C208749 | CA |
| Internal Medicine, Gastroenterology | 207RG0100X | 29355 | WV |
| Internal Medicine | 207R00000X | 25MA10563700 | NJ |
| Internal Medicine, Hepatology | 207RI0008X | 29355 | WV |
| Internal Medicine, Gastroenterology | 207RG0100X | 25MA10563700 | NJ |
| Internal Medicine, Hepatology | 207RI0008X | MD-50743 | IA |
| Student in an Organized Health Care Education/Training Program | 390200000X | 25MA10563700 | NJ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 314 |
|---|---|
| Services billed | 681 across 33 procedure codes |
| Paid by Medicare | $76,193 |
Part D prescriptions in 2024
| Prescriptions (claims) | 627 · 709 30-day fills |
|---|---|
| Patients | 246 |
| Total drug cost | $53,951 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Allen Memorial Hospital CorporationWaterloo, IA · 157 clinicians
Hospital affiliations
- Allen HospitalWaterloo, IA
- Buchanan County Health CenterIndependence, IA
- Community Memorial Hospital Medical CenterSumner, IA
- Floyd County Medical CenterCharles City, IA
- Waverly Health CenterWaverly, IA
Industry payments (Open Payments)
- 2025$180.42 · 3 payments from 3 companies
- 2024$367.01 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $76.61 | 1 |
| Madrigal Pharmaceuticals | $60.72 | 1 |
| Regeneron Healthcare Solutions, Inc. | $43.09 | 1 |
What the 2025 payments were for
- Food and Beverage$180.42 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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