Zachary Logan Birch, DO
NPI 1043846181ActiveIndividual· Internal Medicine· Blacksburg, VA
Internal Medicine (DO) with Southeastern Physician Services PC, practicing in Blacksburg, Virginia. 195 Medicare patients in 2024, $64,077 paid; nearly all of their 1,086 Part D prescriptions were generic (91%). Vertex Pharmaceuticals Incorporated reported $19.08 in payments in 2025, mostly food and beverage. Lists Johnson City Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1043846181 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Mar 20, 2020 |
| Last updated in NPPES | May 21, 2023 |
| Certified by provider | May 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 5093 | TN |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 195 |
|---|---|
| Services billed | 730 across 12 procedure codes |
| Paid by Medicare | $64,077 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,086 · 1,360 30-day fills |
|---|---|
| Patients | 324 |
| Total drug cost | $47,066 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Southeastern Physician Services PCSaint Peters, MO · 593 clinicians
Hospital affiliations
- Johnson City Medical CenterJohnson City, TN
- Johnston Memorial HospitalAbingdon, VA
- Wellmont Bristol Regional Medical CenterBristol, TN
- Wellmont Holston Valley Medical CenterKingsport, TN
Other facilities
- Ballad Health HospiceHospice · Bristol, TN
Industry payments (Open Payments)
- 2025$19.08 · 1 payment from 1 company
- 2024$33.10 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vertex Pharmaceuticals Incorporated | $19.08 | 1 |
What the 2025 payments were for
- Food and Beverage$19.08 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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