Karen Ann P. Rayos, M.D.
NPI 1114300209ActiveIndividual· Family Medicine· Modesto, CA
Family Medicine (M.D.) with Family First Medical Care A Professional Corporation, practicing in Modesto, California. Their prescriptions cost Medicare Part D more than their services did: $63,609 for 726 claims, against $12,041 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 7 companies reporting payments in 2025, $616.19 in all, mostly food and beverage.
Overview
| NPI | 1114300209 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2015 |
| Last updated in NPPES | Jul 17, 2023 |
| Certified by provider | Jul 17, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A158600 | 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 | 38 |
|---|---|
| Services billed | 145 across 25 procedure codes |
| Paid by Medicare | $12,041 |
Part D prescriptions in 2024
| Prescriptions (claims) | 726 · 1,302 30-day fills |
|---|---|
| Patients | 155 |
| Total drug cost | $63,609 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Family First Medical Care A Professional CorporationModesto, CA · 18 clinicians
Industry payments (Open Payments)
- 2025$616.19 · 20 payments from 7 companies
- 2024$368.19 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $187.13 | 7 |
| Sanofi-Aventis U.S. LLC | $104.78 | 1 |
| Mayne Pharma Commercial LLC | $104.52 | 1 |
| Amgen Inc. | $87.27 | 5 |
| Lilly USA, LLC | $72.95 | 3 |
What the 2025 payments were for
- Food and Beverage$571.19 · 19 payments
- Education$45.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 205 family medicine physicians in Modesto · All family medicine physicians in California