Terence Lee Ahern, MD
NPI 1104195916ActiveIndividual· Emergency Medicine· Palo Alto, CA
Emergency Medicine (MD) with Stanford Health Care, practicing in Palo Alto, California. In 2024 Medicare paid $79,442 for 540 patients, and Part D covered 177 of their prescriptions, 88% of them generic. Lists Stanford Health Care as a hospital affiliation.
Overview
| NPI | 1104195916 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Dec 22, 2011 |
| Last updated in NPPES | Jul 5, 2024 |
| Certified by provider | Jul 5, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A123764 | CA |
| Emergency Medicine | 207P00000X | M-13191 | ID |
| Emergency Medicine | 207P00000X | MD170843 | OR |
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 - Emergency Medicine (CA); Practitioner - Emergency Medicine (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 540 |
|---|---|
| Services billed | 743 across 43 procedure codes |
| Paid by Medicare | $79,442 |
Part D prescriptions in 2024
| Prescriptions (claims) | 177 · 178 30-day fills |
|---|---|
| Patients | 126 |
| Total drug cost | $5,817 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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