Douglas Thomas Johnston, DO
NPI 1124048079ActiveIndividual· Allergy & Immunology· Greenville, SC
Allergy & Immunology (DO) in Greenville, South Carolina, licensed in SC, NC and AL, with an NPI issued in July 2006. Enrolled in Medicare as practitioner - allergy/immunology and practitioner - allergy/immunology.
Overview
| NPI | 1124048079 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Jul 20, 2006 |
| Last updated in NPPES | Aug 16, 2022 |
| Certified by provider | Aug 16, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 967 | SC |
| Allergy & Immunology | 207K00000X | 2011-01906 | NC |
| Allergy & Immunology | 207K00000X | DO840 | AL |
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 - Allergy/Immunology (NC); Practitioner - Allergy/Immunology (SC) |
|---|
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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