Ruby Jane Sia, MD
NPI 1518061860ActiveIndividual· Internal Medicine· Apple Valley, CA
Internal Medicine (MD) in Apple Valley, California, licensed in CA, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $1,211,271 for 9,893 claims, against $35,264 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 16 companies reporting payments in 2025, $1,003 in all, mostly food and beverage.
Overview
| NPI | 1518061860 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 8, 2006 |
| Last updated in NPPES | Oct 12, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A63962 | 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 | 134 |
|---|---|
| Services billed | 465 across 22 procedure codes |
| Paid by Medicare | $35,264 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,893 · 17,184 30-day fills |
|---|---|
| Patients | 343 |
| Total drug cost | $1,211,271 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Internal Medicine |
Industry payments (Open Payments)
- 2025$1,003 · 44 payments from 16 companies
- 2024$961.29 · 33 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $256.42 | 16 |
| Medtronic, Inc. | $144.74 | 1 |
| Corcept Therapeutics | $104.32 | 4 |
| Pfizer Inc. | $85.31 | 4 |
| Amgen Inc. | $82.06 | 3 |
What the 2025 payments were for
- Food and Beverage$1,003 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 54 internal medicine physicians in Apple Valley · All internal medicine physicians in California