Smita Dinesh Mandal, M.D.
NPI 1285876854ActiveIndividual· Internal Medicine· Simi Valley, CA
Internal Medicine (M.D.) with Inpatient Specialists of California PC and 1 other group, practicing in Simi Valley, California. Their prescriptions cost Medicare Part D more than their services did: $483,264 for 3,822 claims, against $10,357 paid for services in 2024. Exact Sciences Corporation was the largest of 3 companies reporting payments in 2025, $74.23 in all, mostly food and beverage. Lists Adventist Health Simi Valley and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1285876854 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 29, 2009 |
| Last updated in NPPES | Sep 6, 2023 |
| Certified by provider | Sep 6, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A114250 | 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 | 89 |
|---|---|
| Services billed | 105 across 20 procedure codes |
| Paid by Medicare | $10,357 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,822 · 8,047 30-day fills |
|---|---|
| Patients | 221 |
| Total drug cost | $483,264 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Inpatient Specialists of California PCOakdale, CA · 385 clinicians
- County of VenturaVentura, CA · 344 clinicians
Hospital affiliations
- Adventist Health Simi ValleySimi Valley, CA
- St Johns Regional Medical CenterOxnard, CA
- Ventura County Medical CenterVentura, CA
Other facilities
- Access Tlc Home Health CareHome health agency · San Fernando, CA
Industry payments (Open Payments)
- 2025$74.23 · 3 payments from 3 companies
- 2024$174.26 · 7 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $31.75 | 1 |
| Novo Nordisk Inc | $22.28 | 1 |
| Xeris Pharmaceuticals, Inc. | $20.20 | 1 |
What the 2025 payments were for
- Food and Beverage$74.23 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 internal medicine physicians in Simi Valley · All internal medicine physicians in California