| AIM SLEEP CLINIC | Organization | SILVER SPRING |
| ANNAPOLIS SLEEP CENTER LLC | Organization | ANNAPOLIS |
| BIOSERENITY DT, INC. | Organization | GLEN BURNIE |
| BIOSERENITY USA INC. | Organization | GLEN BURNIE |
| BIOSERENITY USA INC. | Organization | GERMANTOWN |
| BIOSERENITY USA INC. | Organization | GREENBELT |
| BLACKSTONE MEDICAL SERVICES LLC | Organization | BURTONSVILLE |
| BOWIE SLEEP & WELLNESS DIAGNOSTICS LLC | Organization | BOWIE |
| CHESAPEAKE PULMONARY ASSOCIATES, LLC | Organization | FALLSTON |
| CHESTER RIVER HOSPITAL CENTER | Organization | CHESTERTOWN |
| DDP MEDICAL SERVICES, LLC | Organization | SILVER SPRING |
| DIGITRACE CARE SERVICES INC | Organization | BETHESDA |
| DIGITRACE CARE SERVICES INC | Organization | FALLSTON |
| DIGITRACE CARE SERVICES INC | Organization | GREENBELT |
| DIGITRACE CARE SERVICES INC | Organization | FREDERICK |
| DIGITRACE CARE SERVICES INC | Organization | OLNEY |
| DIGITRACE CARE SERVICES INC | Organization | FREDERICK |
| DIGITRACE CARE SERVICES INC | Organization | ROCKVILLE |
| DIGITRACE CARE SERVICES, INC | Organization | TIMONIUM |
| DIGITRACE CARE SERVICES, INC. | Organization | HAGERSTOWN |
| DIGITRACE CARE SERVICES, INC. | Organization | BOWIE |
| FAMILY SLEEP SERVICES LLC | Organization | GAITHERSBURG |
| FORWARD HEALTHCARE LLC | Organization | OWINGS MILLS |
| GREATER WASHINGTON SLEEP DISORDERS CENTERS | Organization | ROCKVILLE |
| HELENE A. EMSELLEM, MD, PC | Organization | CHEVY CHASE |
| KAISER FOUNDATION HEALTH PLAN OF THE MID ATLANTIC STATES, INC | Organization | HALETHORPE |
| KAISER FOUNDATION HEALTH PLAN OF THE MID ATLANTIC STATES, INC | Organization | LUTHERVILLE TIMONIUM |
| KAISER FOUNDATION HEALTH PLAN OF THE MID ATLANTIC STATES, INC | Organization | GAITHERSBURG |
| KAISER FOUNDATION HEALTH PLAN OF THE MID ATLANTIC STATES, INC | Organization | LARGO |
| MARYLAND SLEEP MEDICINE LLC | Organization | ROCKVILLE |
| MD SLEEP MED LLC | Organization | BALTIMORE |
| METRO STAR SLEEP CARE CENTER LLC | Organization | FORT WASHINGTON |
| MID-ATLANTIC SLEEP SOLUTIONS, LLC | Organization | TIMONIUM |
| NEOSOM EAST, LLC | Organization | OWINGS MILLS |
| NEWBRIDGE SPINE AND PAIN CENTER, LLC | Organization | WALDORF |
| NOVASOM INC. | Organization | GLEN BURNIE |
| POTOMAC SLEEP AND WELLNESS | Organization | ROCKVILLE |
| POTOMAC VALLEY SLEEP CENTER, LLC | Organization | CUMBERLAND |
| QUALITY SLEEP SLEEP DISORDERS CENTER. LLC | Organization | WESTMINSTER |
| REM SLEEP DIAGNOSTICS, LLC | Organization | CALIFORNIA |
| REST ASSURED SLEEP CENTERS LLC | Organization | GAMBRILLS |
| REST ASSURED SLEEP CENTERS, LLC | Organization | FREDERICK |
| REST ASSURED SLEEP DISORDERS, INC | Organization | ANNAPOLIS |
| REST ASSURED SLEEP DISORDERS, INC | Organization | LANDOVER |
| SENSIBLE SLEEP SERVICES LLC | Organization | BEL AIR |
| SERENITY SLEEP CARE, LLC | Organization | CLINTON |
| SHORE HEALTH SYSTEM SLEEP CENTER | Organization | QUEENSTOWN |
| SLEEP DISORDERS CTRS OF THE MID ATLANTIC LLC | Organization | ANNAPOLIS |
| SLEEP DISORDERS CTRS OF THE MID ATLANTIC LLC | Organization | ROCKVILLE |
| SLEEP IN MIND LLC | Organization | BETHESDA |
| SLEEP SOLUTION LLC | Organization | BALTIMORE |
| SLEEP WAVES, INC. | Organization | SALISBURY |
| SLEEPMED, INC. | Organization | FREDERICK |
| SLEEPMED, INC. | Organization | BOWIE |
| SNORING AND SLEEP CENTER, LLC | Organization | GREENBELT |
| THE CAPITAL SLEEP SPECIALISTS & DIAGNOSTIC CTR | Organization | ROCKVILLE |
| THE GARRETT COUNTY SLEEP CENTER | Organization | OAKLAND |
| USA SLEEP DIAGNOSTIC MOBILE SERVICES, LLC | Organization | ODENTON |
| USA SLEEP DIAGNOSTIC MOBILE SERVICES, LLC | Organization | COLUMBIA |