| Item | Obligations |
|---|---|
| Offices of Physicians (except Mental Health Specialists) | $1.8B |
| Offices of Physicians, Mental Health Specialists | $11M |
| All Other Outpatient Care Centers | $10.8M |
| All Other Miscellaneous Ambulatory Health Care Services | $719K |
Offices of Physicians (except Mental Health Specialists) is OptumServe Health Services's largest federal market, with $1.8B in obligations.