Antonio A. Tan, M.D.
NPI 1134277569ActiveIndividual· Internal Medicine· Moreno Valley, CA
Internal Medicine (M.D.) in Moreno Valley, California, licensed in CA, with an NPI issued in January 2007. Their prescriptions cost Medicare Part D more than their services did: $1,940,228 for 14,163 claims, against $220,205 paid for services in 2024. Stryker Corporation was the largest of 21 companies reporting payments in 2025, $2,294 in all, mostly food and beverage. Lists Riverside Community Hospital as a hospital affiliation.
Overview
| NPI | 1134277569 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 8, 2007 |
| Last updated in NPPES | Jul 9, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A45416 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 308 |
|---|---|
| Services billed | 6,503 across 35 procedure codes |
| Paid by Medicare | $220,205 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,163 · 27,864 30-day fills |
|---|---|
| Patients | 574 |
| Total drug cost | $1,940,228 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1975 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- Riverside Community HospitalRiverside, CA
Other facilities
- Angelus Home HealthHome health agency · Ontario, CA
- Destiny Home Health Agency, IncHome health agency · Moreno Valley, CA
- Lorian HealthHome health agency · Riverside, CA
- Newline Home Health and Palliative Care, Inc.Home health agency · Colton, CA
- Destiny Hospice Care IncHospice · Moreno Valley, CA
Industry payments (Open Payments)
- 2025$2,294 · 88 payments from 21 companies
- 2024$1,671 · 82 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $784.24 | 1 |
| Astrazeneca Pharmaceuticals LP | $300.89 | 23 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $185.24 | 8 |
| Novo Nordisk Inc | $158.35 | 12 |
| Amgen Inc. | $157.86 | 10 |
What the 2025 payments were for
- Food and Beverage$1,510 · 87 payments
- Travel and Lodging$784.24 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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