Maria Virginia Garcia Sioson-Ayala, MD
NPI 1922137173ActiveIndividual· Family Medicine· El Monte, CA
Family Medicine (MD) with Healthcare Partners Affiliates Medical Group, practicing in El Monte, California. Their prescriptions cost Medicare Part D more than their services did: $297,029 for 5,576 claims, against $14,392 paid for services in 2024. Ucb, Inc. reported $15.00 in payments in 2025, mostly education.
Overview
| NPI | 1922137173 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Mar 5, 2007 |
| Last updated in NPPES | Feb 21, 2026 |
| Certified by provider | Feb 21, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A105436 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 69 |
|---|---|
| Services billed | 204 across 36 procedure codes |
| Paid by Medicare | $14,392 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,576 · 14,058 30-day fills |
|---|---|
| Patients | 848 |
| Total drug cost | $297,029 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
Other facilities
- Family Home Health Agency, LLCHome health agency · Glendora, CA
- Pacific Sun HospiceHospice · Arcadia, CA
Industry payments (Open Payments)
- 2025$15.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ucb, Inc. | $15.00 | 1 |
What the 2025 payments were for
- Education$15.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 family medicine physicians in El Monte · All family medicine physicians in California