Allion Healthcare, Inc. and Subsidiaries

Exhibit 21.1

Allion Healthcare, Inc. and Subsidiaries

Allion Healthcare, Inc. a Delaware Corporation

0000 Xxxx Xxxxxxx Xxxx Xxxxx 000, Xxxxxxxx, XX 00000

MOMS Pharmacy, Inc., a California Corporation

00000 X. Xxxxxxxx Xxx, Xxxxx 000, Xxxxxxx, XX 00000

Medicine Made Easy, a California Corporation

00000 X. Xxxxxxxx Xxx, Xxxxx 000, Xxxxxxx, XX 00000

0000 Xxxxxx Xxx, Xxxxx 000, Xxx Xxxxx XX 00000

MOMS Pharmacy, Inc., a New York Corporation

0000 Xxxx Xxxxxxx Xxxx, Xxxxx 000, Xxxxxxxx, XX 00000

MOMS Pharmacy, LLC, a Florida Limited Liability Company; d/b/a MOMS Specialty Care Pharmacy

0000 Xxxxxxxx Xxxx., Xxxxx, XX 00000

North American Home Health Supply, Inc. a California Corporation

00000 Xxxxxxxx Xx., Xxx Xxxx XX 00000

0000 Xxx Xxx., xxxxx 000, Xx Xxxxx XX 00000

Specialty Pharmacies, Inc. a Washington Corporation

000 Xxxxxx Xxxx Xxx., Xxx Xxxxxxxxx XX 00000

0000 Xxxxxx Xxxxxx, Xxxxxxx XX 00000

00 Xxxxxx Xxxxxx, Xxxxx 000, Xxx Xxxxxxxxx XX 00000

Oris Health, Inc. a California Corporation

000 Xxxxxx Xxx Xxx, Xxx. 000, Xxx Xxx XX 00000

MOMS Pharmacy of Brooklyn, Inc. a New York Corporation

000 Xxxxxxxx Xxxxxx, Xxxxxxxx XX 00000