| ACCURATE AESTHETICS | Organization | WELLESLEY |
| ADVANCED EYE SURGERY CENTER | Organization | N DARTMOUTH |
| ANDOVER SURGERY CENTER, LP | Organization | ANDOVER |
| ARC WORCESTER CENTER, L.P. | Organization | WORCESTER |
| ASSOCIATES IN OTOLARYNGOLOGY HEAD & NECK SURGERY PC | Organization | WORCESTER |
| BAYSTATE NEW ENGLAND ORTHOPEDIC SURGEONS ALLIANCE, LLC | Organization | SPRINGFIELD |
| BERKSHIRE COSMETIC & RECONSTRUCTIVE SURGERY CENTER INC. | Organization | PITTSFIELD |
| BETH ISRAEL LAHEY HEALTH SURGERY CENTER PLYMOUTH LLC | Organization | PLYMOUTH |
| BOSTON CENTER FOR FACIAL AESTHETICS | Organization | MEDFORD |
| BOSTON EYE SURGERY & LASER CENTER TRUST | Organization | BOSTON |
| BOSTON EYE SURGERY & LASER CENTER TRUST | Organization | WALTHAM |
| BOSTON IVF, INC. | Organization | WALTHAM |
| BOSTON LASER EYE INSTITUTE, PC | Organization | BROOKLINE |
| BOSTON LASER SURGERY CENTER LLC | Organization | LAWRENCE |
| BOSTON MEDICAL CENTER | Organization | BOSTON |
| BOSTON OUT-PATIENT SURGICAL SUITES, LLC | Organization | WALTHAM |
| BOSTON UNIVERSITY EYE ASSOCIATES, INC. | Organization | RAYNHAM |
| BOSTON VISION NETWORK ONE-MILFORD LLC | Organization | MILFORD |
| BWH HOSPITAL | Organization | CHESTNUT HILL |
| C.M.F.-CRANIO-MAXILLOFACIAL SURGERY ASSOCIATES | Organization | MEDFORD |
| CAMBRIDGE HEALTH ALLIANCE | Organization | SOMERVILLE |
| CAMBRIDGE HEALTH ALLIANCE | Organization | CAMBRIDGE |
| CANDESCENT EYE HEALTH SURGICENTER, LLC | Organization | DARTMOUTH |
| CAPE COD ASC LLC | Organization | SANDWICH |
| CAPE COD EYE SURGERY & LASER CENTER, LLC | Organization | SANDWICH |
| CAPE COD SURGERY CENTER, INC. | Organization | MASHPEE |
| CAROL MANNONE, RN, MSN | Individual | CAMBRIDGE |
| CATARACT & LASER CENTER, INC. | Organization | DEDHAM |
| CATARACT AND LASER CENTER ASSOCIATES PC | Organization | ADAMS |
| CATARACT AND LASER CENTER OF THE NORTH SHORE, LLC | Organization | ANDOVER |
| CENTRAL MASSACHUSETTS AMBULATORY ENDOSCOPY CENTER LLC | Organization | LEOMINSTER |
| CHELMSFORD SURGERY CENTER LLC | Organization | N CHELMSFORD |
| CHRISTINE A. HAMORI M.D. PC | Organization | DUXBURY |
| CHRISTOPHER J. DAVIDSON, M.D., LLC | Organization | WELLESLEY |
| DHA ENDOSCOPY LLC | Organization | STONEHAM |
| EAST POND ENTERPRISES INC | Organization | CARVER |
| EASTERN MASSACHUSETTS SURGERY CENTER LLC | Organization | NORWOOD |
| EMERSON ENDOSCOPY AND DIGESTIVE HEALTH CENTER, LLC | Organization | CONCORD |
| ENDOSCOPY CENTER OF SOUTHEAST MASSACHUSETTS LLC | Organization | BROCKTON |
| EXCEL SURGERY CENTER LLC | Organization | METHUEN |
| EYE INSTITUTE OF THE MERRIMACK VALLEY INC | Organization | LAWRENCE |
| FACULTY PRACTICE FOUNDATION , EVANS MEDICAL FOUNDATION | Organization | BOSTON |
| FOUR WOMEN | Organization | ATTLEBORO |
| FRANCISCAN HOSPITAL FOR CHILDREN | Organization | BRIGHTON |
| GREATER NEW BEDFORD SURGICENTER | Organization | NORTH DARTMOUTH |
| GREATER SPRINGFIELD SURGERY CENTER, LLC | Organization | SPRINGFIELD |
| HEALTHCARE ENTERPRISES LLC | Organization | SHREWSBURY |
| HYANNIS EAR, NOSE AND THROAT ASSOC INC | Organization | HYANNIS |
| HYDE PARK PAIN MANAGEMENT, LLC | Organization | HYDE PARK |
| INTEGRATED GASTROENTEROLOGY CONSULTANTS PC | Organization | ANDOVER |
| JEFFREY SPIEGEL, M.D. | Individual | NEWTON |
| LIBERTY STREET FACILITY | Organization | SPRINGFIELD |
| LONGWOOD PLASTIC SURGERY, P.C. | Organization | BROOKLINE |
| MASS GENERAL BRIGHAM AMBULATORY SURGERY WEYMOUTH, LLC | Organization | BRAINTREE |
| MASSACHUSETTS EYE SURGERY LLC | Organization | NATICK |
| MDSINE, LLC | Organization | SPRINGFIELD |
| MEDFORD SURGERY CENTER LLC | Organization | MEDFORD |
| MEDICAL AFFILIATES OF CAPE COD, INC. | Organization | MASHPEE |
| MERRIMACK VALLEY ENDOSCOPY, LLC | Organization | HAVERHILL |
| MILFORD-FRANKLIN EYE CENTER, LLC | Organization | MILFORD |