| 360 URGENT CARE LLC | Organization | WILMINGTON |
| ADVANCED MOBILE PEDIATRICS PLCC | Organization | BRIMFIELD |
| AFC PHYSICIANS OF MASSACHUSETTS | Organization | WORCESTER |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | NATICK |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | WORCESTER |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | WEST SPRINGFIELD |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | MARLBOROUGH |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | SPRINGFIELD |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | MALDEN |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | SPRINGFIELD |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | NATICK |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | DEDHAM |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | MARLBOROUGH |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | LONGMEADOW |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | NEW BEDFORD |
| AFC PHYSICIANS OF MASSACHUSETTS, PC | Organization | SAUGUS |
| ALM MEDICAL LLC | Organization | BROCKTON |
| ALPHA MEDICAL ASSOCIATES PC | Organization | CONCORD |
| AMBULATORY EMPLOYEE INDUSTRIAL OCCUPATIONAL URGENT HEALTHCARE | Organization | AMHERST |
| AMERICAN CURRENT CARE OF MASSACHUSETTS PC | Organization | EAST BOSTON |
| AMERICAN CURRENT CARE OF MASSACHUSETTS PC | Organization | WILMINGTON |
| AMERICAN CURRENT CARE OF MASSACHUSETTS PC | Organization | GREENFIELD |
| AMERICAN CURRENT CARE OF MASSACHUSETTS PC | Organization | SPRINGFIELD |
| BERKSHIRE FACULTY SERVICES INC | Organization | WILLIAMSTOWN |
| BERKSHIRE FACULTY SERVICES INC | Organization | LENOX |
| BETH ISRAEL DEACONESS MEDICAL CENTER, INC | Organization | CHESTNUT HILL |
| BETH ISRAEL DEACONESS MEDICAL CENTER, INC | Organization | CHELSEA |
| BETH ISRAEL LAHEY HEALTH PRIMARY CARE, INC. | Organization | DANVERS |
| BETH ISRAEL LAHEY HEALTH PRIMARY CARE, INC. | Organization | GLOUCESTER |
| BETH ISRAEL LAHEY HEALTH PRIMARY CARE, INC. | Organization | LYNNFIELD |
| BHS URGENT CARE CENTER | Organization | PITTSFIELD |
| BID-MILTON PHYSICIAN ASSOCIATES INC | Organization | QUINCY |
| CAMBRIDGE PUBLIC HEALTH COMMISSION | Organization | SOMERVILLE |
| CAPE COD HEALTHCARE | Organization | SANDWICH |
| CAPE COD TELAMEDICINE | Organization | CATAUMET |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | BOSTON |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | BOSTON |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | BRIGHTON |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | BOSTON |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | DEDHAM |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | BOSTON |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | WEST ROXBURY |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | DEDHAM |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | FRAMINGHAM |
| CARBON HEALTH MEDICAL GROUP OF FLORIDA PA | Organization | BOSTON |
| CARBON HEALTH MEDICAL GROUP OF TEXAS PLLC | Organization | BOSTON |
| CARBON HEALTH URGENT CARE OF MASSACHUSETTS PC | Organization | BOSTON |
| CARECENTRAL URGENT CARE MEDICAL GROUP PC | Organization | STOUGHTON |
| CARECENTRAL URGENT CARE MEDICAL GROUP PC | Organization | HALIFAX |
| CARECENTRAL URGENT CARE MEDICAL GROUP PC | Organization | STOUGHTON |
| CARECENTRAL URGENT CARE MEDICAL GROUP PC | Organization | BRIDGEWATER |
| CAREPOINT PC | Organization | BRAINTREE |
| CAREWELL URGENT CARE CENTERS OF MA, P.C | Organization | TEWKSBURY |
| CAREWELL URGENT CARE CENTERS OF MA, P.C | Organization | LEXINGTON |
| CAREWELL URGENT CARE CENTERS OF MA, P.C | Organization | CAMBRIDGE |
| CAREWELL URGENT CARE CENTERS OF MA, P.C | Organization | NORWELL |
| CAREWELL URGENT CARE CENTERS OF MA, P.C | Organization | SOUTH DENNIS |
| CAREWELL URGENT CARE CENTERS OF MA, PC | Organization | NEEDHAM |
| CAREWELL URGENT CARE CENTERS OF MA, PC | Organization | WORCESTER |
| CAREWELL URGENT CARE CENTERS OF MA, PC | Organization | FITCHBURG |