Transaction List - Material Change Notices

MCN Parties	Transaction Type1	Date HPC Received2	CMIR?
Atrius MSO, LLC Shields Imaging Services, LLC	Provider partnership for joint contracting	November 22, 2023
Greater Springfield Surgery Center, LLC Mercy Medical Center	Provider partnership for joint contracting	November 16, 2023
Tufts Medical Center Physicians Organization Sturdy Health	Clinical Affiliation	November 3, 2023	No
Dana-Farber Cancer Institute Beth Israel Deaconess Medical Center Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center, Inc.	Clinical Affiliation	October 24, 2023
Beth Israel Lahey Health Performance Network	Provider merger/affiliation increasing NPSR $10mil	October 17, 2023
BIDCO Physician LLC d/b/a Physician Performance LLC Mount Auburn Cambridge IPA	Provider merger/affiliation increasing NPSR $10mil	October 17, 2023
Baystate Medical Center Laboratory Corporation of America Holdings	Provider merger/affiliation increasing NPSR $10mil	October 16, 2023
UnitedHealth Group Amedisys	Provider merger/affiliation increasing NPSR $10mil	September 21, 2023
Tufts Medicine Laboratory Corporation of America Holdings	Clinical Affiliation	September 20, 2023	No
Tufts Medicine Laboratory Corporation of America Holdings	Provider merger/affiliation increasing NPSR $10mil	August 4, 2023	No
Greater Boston Urology US Urology Partners	Provider merger/affiliation increasing NPSR $10M	August 1, 2023	No
Beth Israel Deaconess Medical Center Cambridge Health Alliance Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center, Inc. Mount Auburn Hospital	Clinical Affiliation	April 26, 2023	No
Mass General Brigham, Inc. Emergency Medicine Specialists, P.C.	Provider merger/affiliation increasing NPSR $10mil	April 24, 2023	No
Saint Vincent Hospital MetroWest Medical Center Emergency Physician Associates of Massachusetts	Clinical Affiliation	April 10, 2023	No
Tufts Medical Center Commonwealth Radiology Associates	Clinical affiliation	November 4, 2022	No
UnitedHealth Group, Inc. LHC Group, Inc.	Provider merger/affiliation increasing NPSR $10M	October 28, 2022	No
Beth Israel Lahey Health, Inc. Exeter Health Resources, Inc.	Acquisition of/by a Hospital	July 28, 2022	No
Monte Nido Holdings, LLC	Acquisition of/by a hospital	July 27, 2022	No
Steward Health Care System CareMax, Inc.	Provider merger/affiliation increasing NPSR $10M	July 15, 2022	No
Tufts Medicine Acadia Healthcare Company	Provider partnership for joint contracting	July 7, 2022	No
Children's Medical Center Corporation Tufts Medicine	Clinical Affiliation	July 6, 2022	No
MelroseWakefield Healthcare, Inc. Shields HealthCare Group, Inc.	Provider partnership for joint contracting	June 2, 2022	No
Boston Children's Hospital Franciscan Hospital For Children	Acquisition of/by a Hospital	March 21, 2022	No
Emerson Hospital Atrius Health	Clinical Affiliation	March 10, 2022	No
Beth Israel Lahey Health Cape Cod Healthcare	Clinical Affiliation	February 11, 2022	No
Lawrence General Hospital Steward Health Care System	Clinical Affiliation	February 3, 2022	No
South Shore Health Integrated Delivery Network Compass Medical, P.C.	Provider merger/affiliation increasing NPSR $10M	January 19, 2022	No
NEBSC Hospital Holdings, LLC NEBSC Surgeon Holdings, LLC	Provider partnership for joint contracting	January 18, 2022	No
South Shore Health System, Inc. Sturdy Memorial Hospital, Inc. Southeast Massachusetts Behavioral Health, LLC Signature Healthcare Corporation	Provider partnership for joint contracting	January 6, 2022	No
Spire Orthopedic Partners (SMN), LLC Sports Medicine North Orthopedic Surgery, Inc.	Provider merger/affiliation increasing NPSR $10M	January 10, 2022	No
BILH Surgery Center Plymouth Hospital Holdco, LLC Pilgrim ASC LLC	Provider partnership for joint contracting	December 21, 2021	No
South Shore Hospital, Inc. Atrius Health, Inc.	Clinical affiliation	November 22, 2021	No
Baystate Medical Center, Inc. NEOS SurgCo, LLC	Provider partnership for joint contracting	October 26, 2021	No
Curahealth Stoughton, LLC PAM Cubed, LLC	Acquisition of/by a hospital	July 28, 2021	No
Walden Behavioral Care Monte Nido	Acquisition of/by a hospital	July 9, 2021	No
Beth Israel Lahey Health, Inc. Joslin Diabetes Center, Inc. and the Joslin Clinic, Inc.	Provider merger/affiliation increasing NPSR $10M	July 2, 2021	No
Aspire South Shore Health System	Clinical Affiliation	May 19, 2021	No
Boston Children's Hospital Cape Cod Hospital	Clinical affiliation	May 3, 2021	No
Wellforce	Formation of a contracting entity	April 16, 2021	No
Atrius Health Inc. Collaborative Care Holdings LLC	Provider merger/affiliation increasing NPSR $10M	March 18, 2021	No
Ophthalmic Consultants of Boston Eye Health Services	Provider merger/affiliation increasing NPSR $10M	March 6, 2021	No
National Mentor Healthcare Community Intervention Services	Provider merger/affiliation increasing NPSR $10M	March 5, 2021	No
Mercy Medical Center MiraVista Behavioral Health	Acquisition of/by hospital	February 17, 2021	No
Heywood Healthcare Shields Health Care Group	Provider partnership for joint contracting	January 22, 2021	No
UMass Memorial Health Care Harrington Health Care System	Acquisition of/by hospital	December 8, 2020	No
HopeHealth Community VNA	Provider merger/affiliation increasing NPSR $10M	October 27, 2020	No
Baystate Health Valley Medical Group	Clinical affiliation	October 16, 2020	No
Lawrence General Hospital	Formation of a contracting entity	October 16, 2020	No
Baystate Medical Center Kindred Healthcare	Provider partnership for joint contracting	October 16, 2020	No
Lowell General Hospital Chelmsford ASC Holding Company, LLC	Provider partnership for joint contracting	September 21, 2020	No
South Shore Health System	Formation of a contracting entity	June 2, 2020	No
Emerson Hospital Physicians Endoscopy, LLC	Provider partnership for joint contracting	June 1, 2020	No
South Shore Hospital South Shore Anesthesia Associates	Provider merger/affiliation increasing NPSR $10M	May 28, 2020	No
Shields Health Care Group (MRI) Emerson Hospital (MRI)	Provider partnership for joint contracting	April 24, 2020	No
Shields Health Care Group (PET-CT) Emerson Hospital (PET-CT)	Provider partnership for joint contracting	April 24, 2020	No
East Boston Neighborhood Health Center South End Community Health Center	Provider merger/affiliation increasing NPSR $10M	October 24, 2019	No
Baystate Medical Center Greater Springfield Surgery Center	Provider partnership for joint contracting	October 16, 2019	No
Exeter Health Resources Partners HealthCare System	Acquisition of/by hospital	August 26, 2019	No
Boston Children's Hospital Partners HealthCare System	Clinical Affiliation	July 11, 2019	No
Baystate Medical Center AmSurg Holdings	Provider partnership for joint contracting	June 27, 2019	No
Associated Physicians of Harvard Medical Faculty Physicians Beth Israel Deaconess Care Organization	Provider merger/affiliation increasing NPSR $10M	June 25, 2019	No
South Shore Physician-Hospital Organization, Inc. Sturdy Memorial Associates	Provider merger/affiliation increasing NPSR $10M	June 13, 2019	No
The Pediatric Physicians’ Organization at Children’s, LLC Woburn and North Andover Pediatric Associates Pediatric Associates of Brockton	Provider merger/affiliation increasing NPSR $10M	May 7, 2019	No
Emerson Hospital  *Withdrawn Harrington HealthCare System Heywood Healthcare  Holyoke Medical Center Signature Healthcare South Shore Health System Sturdy Memorial Hospital	Provider partnership for joint contracting	April 22, 2019	No
HealthDrive Corporation  New England Geriatrics (no MCN form)	Provider merger/affiliation increasing NPSR $10M	February 12, 2019	No
Baystate Medical Center, Inc.  Beach Health Development, LLC	Provider partnership for joint contracting	February 8, 2019	No
Partners HealthCare System Care New England Health System	Acquisition of/by hospital	December 20, 2018	No
Dana-Farber Cancer Institute MCN Cape Cod Healthcare MCN	Clinical Affiliation	November 1, 2018	No
Shields Health Care Group* Reliant MSO* ASC HoldCo *Updated on October 17, 2018	Provider partnership for joint contracting	September 7, 2018	No
Wellforce, Inc. Home Health Foundation, Inc.	Provider merger/affiliation increasing NPSR $10M	August 1, 2018	No
South Shore Health System, Inc. Health Express, LLC	Provider merger/affiliation increasing NPSR $10M	July 23, 2018	No
Partners HealthCare System Cooley Dickinson Physician Hospital Organization	Provider merger/affiliation increasing NPSR $10M	June 15, 2018	No
Shields Health Care Tufts Medical Center	Clinical Affiliation	January 8, 2018	No
Shields Health Care Hallmark Health System Tufts Medical Center Physicians Organization	Formation of a contracting entity	January 5, 2018	No
AdCare Hospital of Worcester, Inc.	Acquisition of/by hospital	October 25, 2017	No
UMass Memorial Health Care   Harrington Memorial Hospital	Clinical Affiliation	October 19, 2017	No
Shields Health Care Group   Baystate Health	Formation of a Contracting Entity	October 16, 2017	No
Steward Health Care System   IASIS Healthcare Corporation	Acquisition by/of hospital	September 18, 2017	No
Steward Health Care System  *Withdrawn Community Health Systems	Acquisition by/of hospital	September 18, 2017	No
Community Health Care, Inc.	Provider merger/affiliation increasing NPSR $10M	August 9, 2017	No
CareGroup   Lahey Health System   Seacoast Regional Health Systems   Beth Israel Deaconess Care Organization   Mount Auburn Cambridge Independent Practice Association	Acquisition of/by hospital	July 13, 2017	Yes
Collaborative Care Holdings LLC   Reliant Medical Group, Inc.	Provider merger/affiliation increasing NPSR $10M	June 30, 2017	No
Quest Diagnostics Massachusetts   Cape Cod Healthcare	Provider merger/affiliation increasing NPSR $10M	June 28, 2017	No
Atrius Health, Inc.   Lowell General Hospital	Clinical Affiliation	May 11, 2017	No
UMass Memorial Health Ventures (UMMHV)   Team Behavioral Health	Formation of a contracting entity	April 5, 2017	No
Partners HealthCare System   Foundation of the Massachusetts Eye and Ear Infirmary	Acquisition of/by hospital	April 3, 2017	Yes
Atrius Health, Inc.	Provider merger/affiliation increasing NPSR $10M	February 1, 2017	No
Berkshire Health Systems	Formation of a Contracting Organization	January 17, 2017	No
Dana-Farber Cancer Institute   UMass Memorial Health Care, Inc.	Clinical Affiliation	January 9, 2017	No
Alita Care   Bournewood Hospital	Acquisition of/by hospital	January 4, 2017	No
New England Life Flight   Lahey Clinic Hospital	Clinical Affiliation	December 6, 2016	No
Shields Health Care   Berkshire Medical Center	Formation of a contracting entity	November 30, 2016	No
ATI Physical Therapy   UMass Memorial Health Ventures (UMMHV)	Formation of a contracting entity	November 9, 2016	No
Steward Health Care Network   Central Massachusetts Independent Physician Association	Provider merger/affiliation increasing NPSR $10M	November 4, 2016	No
Clinton Hospital   HealthAlliance Hospitals	Acquisition of/by hospital	October 7, 2016	No
Southcoast Health Network LLC	Formation of a contracting entity	September 30, 2016	No
Partners HealthCare System   Wentworth-Douglass Health System	Acquisition of/by hospital	September 9, 2016	No
Care New England Health System   *Withdrawn Southcoast Hospitals Group, Inc.	Acquisition of/by hospital	August 26, 2016	No
The Pediatric Physicians' Organization at Children's, LLC	Provider merger/affiliation increasing NPSR $10M	August 19, 2016	No
Hallmark Health PHO, Inc.   New England Quality Care Alliance, Inc.	Provider merger/affiliation increasing NPSR $10M	August 12, 2016	No
Hallmark Health Corporation  Wellforce, Inc.	Acquisition of/by hospital	August 12, 2016	No
Boston Children's Hospital   South Shore Medical Center	Clinical Affiliation	August 4, 2016	No
Atrius Health, Inc.   Winchester Hospital	Clinical Affiliation	May 10, 2016	No
Kindred Healthcare   Curahealth	Acquisition of/by hospital	May 6, 2016	No
Boston Children's Hospital   Southcoast Hospitals Group	Clinical Affiliation	April 12, 2016	No
Belmont Medical Associates    Mount Auburn Professional Services, Inc	Acquisition of/by hospital	March 31, 2016	No
MWA, P.C. d/b/a RiverBend Medical Group   Sisters of Providence Health System, Inc.	Acquisition of/by hospital	March 1, 2016	No
Baystate Mary Lane Hospital   Baystate Wing Hospital	Acquisition of/by hospital	February 5, 2016	No
Mount Auburn Hospital   Mount Auburn Cambridge Independent Practice Association, Inc. Boston Children's Hospital	Clinical Affiliation	January 26, 2016	No
Beth Israel Deaconess Medical Center   Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center    MetroWest Medical Center	Clinical Affiliation	January 14, 2016	Yes
Partners HealthCare System   Shields Health Care Group	Formation of a contracting entity	November 30, 2015	No
Atrius Health, Inc.    Massachusetts Eye and Ear Infirmary	Clinical Affiliation	November 17, 2015	No
MetroWest Medical Center   Beth Israel Deaconess Care Organization	Provider merger/affiliation increasing NPSR $10M	October 30, 2015	Yes
UMass Memorial Accountable Care Organization   *Withdrawn	Clinical Affiliation	October 19, 2015	No
Anna Jaques Hospital   Shields Health Care Group	Formation of a contracting entity	October 13, 2015	No
Beth Israel Deaconess Care Organization   New England Baptist Clinical Integration Organization   New England Baptist Hospital	Provider merger/affiliation increasing NPSR $10M	October 2, 2015	Yes
Dana-Farber Cancer Institute   Partners HealthCare System   Berkshire Medical Center   Amended Dana-Farber Cancer Institute Notice of Material Change  Amended Berkshire Medical Center Notice of Material Change   *Partners HealthCare System has withdrawn from this transaction.	Clinical Affiliation	September 24, 2015	No
Cape Cod Hospital    Tufts Medical Center Parent	Clinical Affiliation	August 12, 2015	No
Trinity Health Corporation   Saint Francis Care	Acquisition of/by hospital	July 31, 2015	No
Boston Medical Center	Clinical Affiliation	July 2, 2015	No
Boston Children’s Hospital   Lahey Clinical Performance Network	Clinical Affiliation	July 2, 2015	No
HealthSouth Acquisition Holdings, LLC   Reliant Rehabilitation Hospital Braintree    HealthSouth Acquisition Holdings, LLC   Reliant Rehabilitation Hospital New England	Acquisition of/by hospital	June 26, 2015	No
Sturdy Memorial Hospital, Inc.   Shields Health Care Group	Formation of a contracting entity	June 1, 2015	No
Brockton Hospital, Inc.   Shields Health Care Group	Formation of a contracting entity	June 1, 2015	No
South Shore Medical Center   South Shore Physician Ambulatory Enterprise	Provider merger/affiliation increasing NPSR $10M	May 7, 2015	No
UMass Memorial Health Care   Quest Diagnostics Massachusetts	Clinical Affiliation	May 1, 2015	No
Partners HealthCare System, Inc.   Steward Health Care	Clinical Affiliation	April 10, 2015	No
Noble Hospital   Baystate Medical Center	Acquisition of/by hospital	March 18, 2015	No
UMass Memorial Health Care, Inc.   Shields Health Care Group	Formation of a contracting entity	March 18, 2015	No
Steward Health Care   Dana Farber Cancer Institute	Clinical Affiliation	March 10, 2015	No
Partners HealthCare System, Inc.   Pentucket Medical Associates	Provider merger/affiliation increasing NPSR $10M	November 21, 2014	No
Winchester Hospital	Formation of a contracting entity	October 30, 2014	No
UMass Memorial Health Care, Inc.	Formation of a contracting entity	October 30, 2014	No
Reliant Medical Group   Southboro Medical Group	Provider merger/affiliation increasing NPSR $10M	October 23, 2014	No
Valley Medical Group   Health New England	Merger or Affiliation with a Carrier	September 30, 2014	No
PMG Physician Associates   Beth Israel Deaconess Care Organization	Provider merger/affiliation increasing NPSR $10M	July 28, 2014	No
Lahey Health    VNA of Middlesex-East	Provider merger/affiliation increasing NPSR $10M	July 24, 2014	No
Lowell General Hospital    Tufts Medical Center	Acquisition of/by hospital	July 22, 2014	No
Boston Medical Center	Formation of a contracting entity	May 13, 2014	No
Beth Israel Deaconess Care Organization   Lawrence General Hospital	Provider merger/affiliation increasing NPSR $10M	May 7, 2014	No
New England Rehabilitation Management Co. (NERM)     UMass Memorial Health Ventures (UMMHV)	Change in ownership levels	April 23, 2014	No
Holy Family Hospital   Merrimack Valley Hospital	Acquisition of/by hospital	March 25, 2014	No
New England Baptist Hospital    Beth Israel Deaconess Medical Center   Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center (HMFP)	Clinical Affiliation	March 18, 2014	No
Dana-Farber Cancer Institute   Steward Health Care System LLC	Clinical Affiliation	March 18, 2014	No
Baystate Health    Wing Memorial	Acquisition of/by hospital	March 12, 2014	No
Dana-Farber Cancer Institute   Commonwealth Hematology-Oncology, P.C.	Provider merger/affiliation increasing NPSR $10M	March 3, 2014	No
Beth Israel Deaconess Care Organization   Lower Merrimac Valley Hospital Organization, Inc   Whittier Independent Practice Association, Inc   Seacoast Regional Health System	Provider merger/affiliation increasing NPSR $10M	February 28, 2014	No
MACC - Emerald   Emerald Physician Services Inc.	Provider merger/affiliation increasing NPSR $10M	November 18, 2013	No
Partners Healthcare System, Inc - Hallmark Health Corporation   Hallmark Health Corporation-Partners Healthcare System, Inc.	Acquisition of/by hospital	November 12, 2013	Yes
Lahey Health Systems, Inc - Winchester Hospital   Winchester Hospital - Lahey Health System, Inc.	Acquisition of/by hospital	October 30, 2013	Yes
Harbor Medical Associates - Partners Healthcare System, Inc.   Partners Healthcare System, Inc - Harbor Medical Associates	Provider merger/affiliation increasing NPSR $10M	October 24, 2013	Yes
Reliant Braintree Rehabilitation Hospital   Reliant New England Rehabilitation Hospital	Acquisition of/by hospital	September 23, 2013	No
Harvard Medical Faculty Physicians - Jordan Health Systems   Jordan Hospital-HMFP MCN	Clinical Affiliation3	August 9, 2013	No
Jordan Hospital-BIDCO MCN   BIDCO-Jordan MCN	Provider merger/affiliation increasing NPSR $10M3	August 8, 2013	No
Atrius-Jordan Hospital, Inc.   Jordan - Atrius Affiliation	Clinical Affiliation3	August 8, 2013	No
Tenet-Vanguard MetroWest Hospital   Tenet-Vanguard St. Vincent Hospital	Acquisition of/by hospital	August 7, 2013	No
CHA-BIDCO   CHAPO-BIDCO   BIDCO-CHA	Provider merger/affiliation increasing NPSR $10M	August 1, 2013	No
Beth Israel Deaconess Medical Center   Jordan Hospital, Inc.	Acquisition of/by hospital3	July 29, 2013	No
New England Quality Care Alliance, Inc. Healthcare South, P.C.	Provider merger/affiliation increasing NPSR $10M	July 22, 2013	No
Atrius Health, Inc.   Visiting Nurse Association of Boston, Inc.	Provider merger/affiliation increasing NPSR $10M	July 3, 2013	No
Children’s Hospital Corporation	Formation of a contracting entity	June 12, 2013	No
BIDMC   Signature Healthcare Corporation   HMFP	Clinical Affiliation	June 4, 2013	No
Steward Health Care System, LLC   Hawthorn Medical Associates	Acquisition of/by hospital	May 24, 2013	No
Partners Healthcare System, Inc.   Cooley Dickinson Hospital, Inc.	Acquisition of/by hospital	May 6, 2013	No
Beth Israel Deaconess   Cambridge Public Health Commission   Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Center	Clinical Affiliation	May 6, 2013	No
Partners HealthCare System, Inc. Notice of Material Change   South Shore Hospital Notice of Material Change	Acquisition of/by hospital	April 22, 2013	Yes

1. The listed transaction type represents the HPC’s classification of each transaction, which may in some cases differ from the transaction type indicated by filing parties on their notice forms.

2. Note that the date that a notice was first received does not generally reflect the date that the notice was completed. The exact timing of notice completion depends on the nature of the transaction and the parties’ timeliness in responding to requests for information necessary to complete the notice.

3. In counts of transactions, the HPC treats these four notices as a single transaction.