Therese Grace Sumague Santos, DO
NPI 1851929111ActiveIndividual· Family Medicine· Yorba Linda, CA
Family Medicine (DO) with Providence Medical Foundation, practicing in Yorba Linda, California. Their prescriptions cost Medicare Part D more than their services did: $100,795 for 1,392 claims, against $44,475 paid for services in 2024. Novo Nordisk Inc was the largest of 9 companies reporting payments in 2025, $584.88 in all, mostly food and beverage. Lists Providence St. Jude Medical Center as a hospital affiliation.
Overview
| NPI | 1851929111 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 31, 2020 |
| Last updated in NPPES | Nov 9, 2023 |
| Certified by provider | Nov 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 20A19785 | 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 | 145 |
|---|---|
| Services billed | 1,294 across 57 procedure codes |
| Paid by Medicare | $44,475 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,392 · 3,096 30-day fills |
|---|---|
| Patients | 302 |
| Total drug cost | $100,795 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliation
- Providence St. Jude Medical CenterFullerton, CA
Industry payments (Open Payments)
- 2025$584.88 · 15 payments from 9 companies
- 2024$864.87 · 23 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $179.44 | 3 |
| Abbott Laboratories | $121.37 | 1 |
| Janssen Pharmaceuticals, Inc | $76.79 | 3 |
| Glaxosmithkline, LLC. | $39.64 | 2 |
| Amgen Inc. | $37.85 | 2 |
What the 2025 payments were for
- Food and Beverage$584.88 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 60 family medicine physicians in Yorba Linda · All family medicine physicians in California