Graciela Lia Imbastari, MD
NPI 1801809983ActiveIndividual· Internal Medicine· Orange, CA
Internal Medicine (MD) with Astra Medical Group, practicing in Orange, California. Their prescriptions cost Medicare Part D more than their services did: $598,205 for 7,655 claims, against $24,064 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 14 companies reporting payments in 2025, $1,244 in all, mostly food and beverage.
Overview
| NPI | 1801809983 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 13, 2006 |
| Last updated in NPPES | Oct 25, 2022 |
| Certified by provider | Oct 25, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A46536 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 80 |
|---|---|
| Services billed | 247 across 11 procedure codes |
| Paid by Medicare | $24,064 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,655 · 17,371 30-day fills |
|---|---|
| Patients | 425 |
| Total drug cost | $598,205 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Astra Medical GroupOrange, CA · 2 clinicians
Industry payments (Open Payments)
- 2025$1,244 · 62 payments from 14 companies
- 2024$1,334 · 66 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $348.31 | 22 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $190.35 | 6 |
| Abbvie Inc. | $106.78 | 4 |
| Glaxosmithkline, LLC. | $96.04 | 4 |
| Pfizer Inc. | $75.36 | 4 |
What the 2025 payments were for
- Food and Beverage$1,244 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 224 internal medicine physicians in Orange · All internal medicine physicians in California