Mary Lee Grewal, D.O.
NPI 1821480732ActiveIndividual· Surgery, Vascular Surgery· Loma Linda, CA
Surgery, Vascular Surgery (D.O.) in Loma Linda, California, licensed in CA, with an NPI issued in March 2015. Medicare paid $1,668 for services to 17 patients in 2024. Endologix LLC was the largest of 6 companies reporting payments in 2025, $2,737 in all, mostly food and beverage.
Overview
| NPI | 1821480732 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 2, 2015 |
| Last updated in NPPES | Jul 17, 2026 |
| Certified by provider | Jul 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 19531 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Vascular Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 33 across 8 procedure codes |
| Paid by Medicare | $1,668 |
Industry payments (Open Payments)
- 2025$2,737 · 18 payments from 6 companies
- 2024$1,803 · 17 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Endologix LLC | $1,490 | 7 |
| Shockwave Medical, Inc | $1,034 | 7 |
| Abbvie Inc. | $90.81 | 1 |
| W. L. Gore & Associates, Inc. | $58.33 | 1 |
| Lemaitre Vascular, Inc. | $44.08 | 1 |
What the 2025 payments were for
- Food and Beverage$1,382 · 12 payments
- Travel and Lodging$1,354 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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