People · Operator
Named in public records as an officer, director or promoter · active 2017–2017 · Other Health Care
| Company | Role | Sector | Stage | Raised · real | Value · est | Tied |
|---|---|---|---|---|---|---|
| Spine Holdings LLC | — | Other Health Care | Series B | $38.4M | $851.6M | 2017 |
Donald R. Johnson, II, M.D. at the center, the companies they're named on, and every other operator named alongside them — an interlock map of shared founding teams, boards and funds. Name-matched, so treat as a research lead.
People named alongside Donald R. Johnson, II, M.D. on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.
| Operator | Shared | Their companies |
|---|---|---|
| Alexander S. McGrath | 1 | 5 |
| D. Andrew Tatman II | 1 | 2 |
| Stephen C. Poletti, M.D. | 1 | 1 |
| John Andrew Harrison | 1 | 1 |
| Benjamin S. Geis | 1 | 1 |
| Robert J. Nixon | 1 | 1 |
| Sally A. Border | 1 | 1 |
People are matched by normalized name across records; a common name may merge distinct individuals. Treat as a research lead, the same way modeled valuations are directional, not quoted.