Christopher W. Vanderzant, DO
NPI 1285616391ActiveIndividual· Neurological Surgery· San Angelo, TX
Neurological Surgery (DO) with Shannon Clinic and 1 other group, practicing in San Angelo, Texas. Their prescriptions cost Medicare Part D more than their services did: $216,374 for 438 claims, against $87,443 paid for services in 2024. Emd Serono, Inc. was the largest of 18 companies reporting payments in 2025, $942.14 in all, mostly food and beverage. Lists Shannon Medical Center as a hospital affiliation.
Overview
| NPI | 1285616391 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Nov 15, 2005 |
| Last updated in NPPES | Jul 9, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | F4626 | TX |
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 - Neurology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 67 |
|---|---|
| Services billed | 13,710 across 23 procedure codes |
| Paid by Medicare | $87,443 |
Part D prescriptions in 2024
| Prescriptions (claims) | 438 · 607 30-day fills |
|---|---|
| Patients | 122 |
| Total drug cost | $216,374 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1979 |
|---|---|
| Medicare specialty | Neurology |
Medical groups
- Shannon ClinicSan Angelo, TX · 559 clinicians
- The West Texas Rehabilitation CenterSan Angelo, TX · 466 clinicians
Hospital affiliation
- Shannon Medical CenterSan Angelo, TX
Industry payments (Open Payments)
- 2025$942.14 · 42 payments from 18 companies
- 2024$399.37 · 19 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Emd Serono, Inc. | $140.49 | 8 |
| Janssen Biotech, Inc. | $122.36 | 2 |
| Biogen, Inc. | $103.88 | 5 |
| Vanda Pharmaceuticals Inc. | $86.92 | 4 |
| Abbvie Inc. | $72.74 | 4 |
What the 2025 payments were for
- Food and Beverage$843.14 · 41 payments
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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