Karanbir S. Grewal, M.D.
NPI 1235105610ActiveIndividual· Internal Medicine, Interventional Cardiology· Marysville, CA
Internal Medicine, Interventional Cardiology (M.D.) with Adventist Health Physicians Network, practicing in Marysville, California. In 2024 Medicare paid $192,522 for 1,216 patients, and Part D covered 1,805 of their prescriptions, 83% of them generic. Abbott Laboratories was the largest of 4 companies reporting payments in 2025, $1,484 in all, mostly travel and lodging. Lists Adventist Health and Rideout and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1235105610 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 27, 2006 |
| Last updated in NPPES | Sep 13, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | A53044 | CA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | A53044 | 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 - Interventional Cardiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,216 |
|---|---|
| Services billed | 2,951 across 72 procedure codes |
| Paid by Medicare | $192,522 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,805 · 3,376 30-day fills |
|---|---|
| Patients | 268 |
| Total drug cost | $240,229 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Interventional Cardiology |
| Telehealth | Offers telehealth |
Medical group
- Adventist Health Physicians NetworkSaint Helena, CA · 628 clinicians
Hospital affiliations
- Adventist Health and RideoutMarysville, CA
- Adventist Health St HelenaSaint Helena, CA
- Colusa Medical CenterColusa, CA
- Enloe HealthChico, CA
- Oroville HospitalOroville, CA
Industry payments (Open Payments)
- 2025$1,484 · 18 payments from 4 companies
- 2024$493.70 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $1,131 | 15 |
| Shockwave Medical, Inc | $183.80 | 1 |
| Abiomed | $147.69 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $21.61 | 1 |
What the 2025 payments were for
- Travel and Lodging$852.56 · 5 payments
- Food and Beverage$631.48 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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