Susan Cox Ahern, D.O.
NPI 1508156597ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Ventura, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (D.O.) in Ventura, California, trained at Western University of Health Sciences College of Dental Med (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $1,658,163 for 3,330 claims, against $324,275 paid for services in 2024. Novo Nordisk Inc was the largest of 2 companies reporting payments in 2025, $122.06 in all, mostly food and beverage.
Overview
| NPI | 1508156597 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Apr 12, 2011 |
| Last updated in NPPES | May 21, 2020 |
| Certified by provider | May 21, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 20A12600 | 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 | 461 |
|---|---|
| Services billed | 20,166 across 26 procedure codes |
| Paid by Medicare | $324,275 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,330 · 8,035 30-day fills |
|---|---|
| Patients | 469 |
| Total drug cost | $1,658,163 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Western University of Health Sciences College of Dental Med |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- The Regents of the University of CaliforniaSanta Monica, CA · 1,462 clinicians
Hospital affiliations
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
- St Johns Regional Medical CenterOxnard, CA
- UCLA West Valley Medical CenterWest Hills, CA
Industry payments (Open Payments)
- 2025$122.06 · 2 payments from 2 companies
- 2024$131.23 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $102.08 | 1 |
| Abbott Laboratories | $19.98 | 1 |
What the 2025 payments were for
- Food and Beverage$102.08 · 1 payment
- Long term medical supply or device loan$19.98 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Endocrinology, Diabetes & Metabolism providers in Ventura
- 1225494636
- 1376689786
- 1396142386
- 1730116930
- 1609912666
- 1033261144
- 1639253735
- 1407078215
- 1487016952
All Internal Medicine, Endocrinology, Diabetes & Metabolism providers in California →