Nicholas Geoffrey Ashenburg, MD
NPI 1104238336ActiveIndividual· Emergency Medicine· Stanford, CA
Emergency Medicine (MD) in Stanford, California, trained at Tufts University School of Medicine (class of 2014). Mostly services rather than prescriptions: Medicare paid $47,774 for 311 patients in 2024, with only 45 Part D claims. Ge Healthcare reported $10,018 in payments in 2025, mostly consulting fees.
Overview
| NPI | 1104238336 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 22, 2014 |
| Last updated in NPPES | Mar 14, 2024 |
| Certified by provider | Mar 14, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A155400 | CA |
| Emergency Medicine | 207P00000X | 39364 | SC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 311 |
|---|---|
| Services billed | 381 across 27 procedure codes |
| Paid by Medicare | $47,774 |
Part D prescriptions in 2024
| Prescriptions (claims) | 45 · 45 30-day fills |
|---|---|
| Patients | 33 |
| Total drug cost | $1,015 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Emergency Medicine |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$10,018 · 5 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ge Healthcare | $10,018 | 5 |
What the 2025 payments were for
- Consulting Fee$10,018 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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