Janie Gia-Lin Weng Grumley, MD
NPI 1063616142ActiveIndividual· Surgery· Santa Monica, CA
Surgery (MD) in Santa Monica, California, trained at University of Southern California Keck School of Medicine (class of 2005). Mostly services rather than prescriptions: Medicare paid $111,644 for 266 patients in 2024, with only 18 Part D claims. Hologic Sales and Service, LLC was the largest of 7 companies reporting payments in 2025, $1,152 in all, mostly food and beverage.
Overview
| NPI | 1063616142 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 13, 2007 |
| Last updated in NPPES | Jan 25, 2024 |
| Certified by provider | Jan 25, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A97413 | CA |
| Surgery | 208600000X | MD60223684 | WA |
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 - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 266 |
|---|---|
| Services billed | 718 across 32 procedure codes |
| Paid by Medicare | $111,644 |
Part D prescriptions in 2024
| Prescriptions (claims) | 18 · 22 30-day fills |
|---|---|
| Total drug cost | $254.08 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | General Surgery |
Medical groups
- Providence Facey Medical FoundationValencia, CA · 385 clinicians
- Providence Saint Johns Medical FoundationSanta Monica, CA · 281 clinicians
Hospital affiliations
- Providence Saint Joseph Medical CtrBurbank, CA
- Saint John's Health CenterSanta Monica, CA
Industry payments (Open Payments)
- 2025$1,152 · 17 payments from 7 companies
- 2024$1,692 · 19 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $562.77 | 7 |
| Endomagnetics Ltd | $287.24 | 5 |
| Vector Surgical, LLC | $131.67 | 1 |
| Stryker Corporation | $57.07 | 1 |
| Caris Mpi, Inc. | $51.16 | 1 |
What the 2025 payments were for
- Food and Beverage$1,152 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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