| Company | TRUE NORTH NPA HOLDINGS, LLC |
| Business Number | 6314268 |
| Company | MD ON BOARD, LLC |
| Business Number | 6349758 |
| Company | TRUE NORTH MEDICAL AT WORK, P.C. |
| Business Number | 6400129 |
| Company | TRUE NORTH MEDICAL AT NORTH SUFFOLK, PLLC |
| Business Number | 6532296 |
| Company | TRUE NORTH SLEEP LABS, LLC |
| Business Number | 6591061 |
| Company | TRUE NORTH SPECIAL PURPOSE COMPANY B, LLC |
| Business Number | 6599528 |
| Company | MEDICAL SERVICES OF MANHASSET, P.C. |
| Business Number | 6641321 |
| Company | MEDICAL SERVICES OF LENOX HILL, P.C. |
| Business Number | 6641323 |
| Company | MEDICAL SERVICES OF STONY BROOK, P.C. |
| Business Number | 6641329 |
| Company | MEDICAL SERVICES OF NASSAU, P.C. |
| Business Number | 6641332 |
| Company | MEDICAL SERVICES OF SUFFOLK, P.C. |
| Business Number | 6672288 |