Allen Sebastian Mathew, MD
NPI 1417053075ActiveIndividual· Internal Medicine, Nephrology· Eureka, CA
Internal Medicine, Nephrology (MD) in Eureka, California, trained at University of Missouri, Columbia School of Medicine (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $721,828 for 3,617 claims, against $179,730 paid for services in 2024. Amgen Inc. was the largest of 5 companies reporting payments in 2025, $605.57 in all, mostly food and beverage.
Overview
| NPI | 1417053075 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 14, 2006 |
| Last updated in NPPES | Apr 23, 2024 |
| Certified by provider | Apr 23, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | G84898 | 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 | 125 |
|---|---|
| Services billed | 1,280 across 35 procedure codes |
| Paid by Medicare | $179,730 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,617 · 6,772 30-day fills |
|---|---|
| Patients | 141 |
| Total drug cost | $721,828 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Mad River Community HospitalArcata, CA
- Providence St Joseph HospitalEureka, CA
- Shasta Regional Medical CenterRedding, CA
- Sutter Coast HospitalCrescent City, CA
Other facilities
- Fmc EurekaDialysis facility · Eureka, CA
- Srs-Crescent City, LLCDialysis facility · Crescent City, CA
Industry payments (Open Payments)
- 2025$605.57 · 9 payments from 5 companies
- 2024$2,753 · 11 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $290.28 | 3 |
| Gastroklenz, Inc. DBA Cloudcath | $116.55 | 2 |
| Travere Therapeutics, Inc. | $97.90 | 2 |
| Novo Nordisk Inc | $80.77 | 1 |
| Novartis Pharmaceuticals Corporation | $20.07 | 1 |
What the 2025 payments were for
- Food and Beverage$605.57 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Nephrology providers in Eureka
- 1780944579
- 1457734741