Christopher James Aho, M.D.
NPI 1295775807ActiveIndividual· Neurological Surgery· Valencia, CA
Neurological Surgery (M.D.) in Valencia, California, trained at University of Michigan Medical School (class of 1999). 92 Medicare patients in 2024, $38,888 paid; nearly all of their 52 Part D prescriptions were generic (96%). Stryker Corporation reported $155.56 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1295775807 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 8, 2006 |
| Last updated in NPPES | Jul 24, 2026 |
| Certified by provider | Jul 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | A79102 | 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 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 - Neurosurgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 92 |
|---|---|
| Services billed | 192 across 28 procedure codes |
| Paid by Medicare | $38,888 |
Part D prescriptions in 2024
| Prescriptions (claims) | 52 · 60 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $3,913 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Neurosurgery |
Medical group
- Neurosurgical Associates of Los Angeles, Inc.Valencia, CA · 7 clinicians
Hospital affiliation
- Antelope Valley HospitalLancaster, CA
Industry payments (Open Payments)
- 2025$155.56 · 1 payment from 1 company
- 2024$24.61 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $155.56 | 1 |
What the 2025 payments were for
- Food and Beverage$155.56 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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