Cosmo Lyle Fraser, MD
NPI 1215026760ActiveIndividual· Internal Medicine, Nephrology· Yuba City, CA
Internal Medicine, Nephrology (MD) in Yuba City, California, trained at New York University School of Medicine (class of 1979). 556 Medicare patients in 2024, $485,917 paid; nearly all of their 1,078 Part D prescriptions were generic (91%). Ardelyx, Inc. was the largest of 3 companies reporting payments in 2024, $104.85 in all, mostly food and beverage.
Overview
| NPI | 1215026760 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 12, 2006 |
| Last updated in NPPES | Oct 30, 2023 |
| Certified by provider | Oct 30, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | C40203 | 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 - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 556 |
|---|---|
| Services billed | 4,073 across 16 procedure codes |
| Paid by Medicare | $485,917 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,078 · 2,020 30-day fills |
|---|---|
| Patients | 221 |
| Total drug cost | $111,947 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Adventist Health and RideoutMarysville, CA
- Colusa Medical CenterColusa, CA
- Enloe HealthChico, CA
- Oroville HospitalOroville, CA
- University of California Davis Medical CenterSacramento, CA
Other facilities
- Davita Marysville Dialysis CenterDialysis facility · Marysville, CA
- Yuba Sutter DialysisDialysis facility · Yuba City, CA
Industry payments (Open Payments)
- 2024$104.85 · 5 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $60.40 | 3 |
| Cormedix Inc. | $26.37 | 1 |
| Astrazeneca Pharmaceuticals LP | $18.08 | 1 |
What the 2024 payments were for
- Food and Beverage$104.85 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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