Reuven Fernandez Sison, M.D.
NPI 1225143274ActiveIndividual· Family Medicine· Monterey Park, CA
Family Medicine (M.D.) with Natalie Driessen MD Inc and 2 other groups, practicing in Monterey Park, California. Their prescriptions cost Medicare Part D more than their services did: $561,123 for 2,436 claims, against $30,407 paid for services in 2024. Abbvie Inc. was the largest of 7 companies reporting payments in 2025, $619.55 in all, mostly food and beverage. Lists Eisenhower Medical Center as a hospital affiliation.
Overview
| NPI | 1225143274 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 20, 2006 |
| Last updated in NPPES | Aug 7, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A85883 | 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 | 162 |
|---|---|
| Services billed | 722 across 42 procedure codes |
| Paid by Medicare | $30,407 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,436 · 3,872 30-day fills |
|---|---|
| Patients | 764 |
| Total drug cost | $561,123 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Family Practice |
| Secondary specialties | Dermatology |
Medical groups
- Natalie Driessen MD IncPalm Desert, CA · 9 clinicians
- Michael P Milligan MD IncRancho Mirage, CA · 3 clinicians
- M.A. Medical Group, IncMonterey Park, CA · 2 clinicians
Hospital affiliation
- Eisenhower Medical CenterRancho Mirage, CA
Other facilities
- Avis Home Health, Inc.Home health agency · Woodland Hills, CA
- Centrum Home Health, Inc.Home health agency · Valley Village, CA
- Efficient Home Health Services, IncHome health agency · Northridge, CA
- Suffolk Home Health, IncHome health agency · Azusa, CA
- Universal Preventive Home Health Care, Inc.Home health agency · Simi Valley, CA
Industry payments (Open Payments)
- 2025$619.55 · 16 payments from 7 companies
- 2024$764.63 · 31 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $236.36 | 7 |
| Journey Medical Corporation | $115.96 | 1 |
| Novartis Pharmaceuticals Corporation | $90.00 | 2 |
| Regeneron Healthcare Solutions, Inc. | $81.70 | 3 |
| Leo Pharma Inc. | $52.45 | 1 |
What the 2025 payments were for
- Food and Beverage$619.55 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 55 family medicine physicians in Monterey Park · All family medicine physicians in California