Peter Assaad, DO – Anesthesiology Physician

Key facts

NPI: 1669976700
Entity type: Individual (NPI type 1)
Primary specialty: Anesthesiology Physician 207L00000X
License: 291468 (MA)
Practice address: 736 Cambridge St
Brighton, MA 02135-2907
Phone: (508) 873-5529
NPI assigned: Mar 22, 2018
Sex: Male
Sole proprietor: No

Organizations & group practices 17

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Baystate Medical Practices, Inc Emergency Medical Services (Emergency Medicine) Physician · Springfield, MA · NPI 1548205909

Medicare reassignment Care Compare group NPD MA
BMC Affiliated Physicians, Inc. Internal Medicine Physician · Boston, MA · NPI 1245320910

Medicare reassignment Care Compare group NPD MA
Capa Anesthesia LLC Anesthesiology Physician · Weymouth, MA · NPI 1629723002

Medicare reassignment Care Compare group NPD ANESTHESIOLOGY · MA
Coastal Medical Associates Anesthesiology Physician · Weymouth, MA · NPI 1932175684

Medicare reassignment Care Compare group NPD ANESTHESIOLOGY · MA
Commonwealth Anesthesia Associates, Inc Pain Medicine (Anesthesiology) Physician · Newton, MA · NPI 1184645194

Medicare reassignment Care Compare group NPD ANESTHESIOLOGY · MA
Pratt Anesthesiology Associates, Inc Anesthesiology Physician · Boston, MA · NPI 1326085390

Medicare reassignment Care Compare group NPD ANESTHESIOLOGY · MA
Gbaa Holdings, PLLC Anesthesiology Physician · Acton, MA · NPI 1790299592

Medicare reassignment NPD ANESTHESIOLOGY · MA
Icon Anesthesia Services of New England LLC Anesthesiology Physician · Middleton, MA · NPI 1629583323

Medicare reassignment NPD ANESTHESIOLOGY · MA
Lawrence Anesthesia Services, LLC Anesthesiology Physician · Lawrence, MA · NPI 1467699918

Medicare reassignment NPD ANESTHESIOLOGY · MA
South Shore Medical Center, Inc. Internal Medicine Physician · Norwell, MA · NPI 1669411856

Medicare reassignment NPD MA
Steward Medical Group, Inc Anesthesiology Physician · Fall River, MA · NPI 1043711914

Medicare reassignment NPD ANESTHESIOLOGY · MA
Steward Medical Group, Inc Specialist · Watertown, MA · NPI 1629398219

Medicare reassignment NPD MA
Tri Anesthesia LLC Anesthesiology Physician · Worcester, MA · NPI 1275331761

Medicare reassignment NPD ANESTHESIOLOGY · MA
Hospitalist Medicine Physicians of New York - Patchogue PC Anesthesiology Physician · Patchogue, NY · NPI 1366920993

Medicare reassignment NPD ANESTHESIOLOGY · NH
Cambridge Public Health Commission General Acute Care Hospital · Cambridge, MA · NPI 1487603585

NPD
Steward Medical Group, Inc Specialist · Brighton, MA · NPI 1356654495

NPD
Cap Anesthesia, PC Anesthesiology Physician · Weston, MA · NPI 1497763213

NPD (past) ANESTHESIOLOGY

Hospital & facility affiliations 6

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

Baystate Medical Center Inc General Acute Care Hospital · Springfield, MA · NPI 1487655064

Care Compare affiliation Hospital
Baystate Medical Center Inc Clinical Medical Laboratory · Springfield, MA · NPI 1568488450

Care Compare affiliation Hospital
Boston Medical Center - Brighton Corporation General Acute Care Hospital · Boston, MA · NPI 1720814072

Care Compare affiliation Hospital
Newton-Wellesley Hospital General Acute Care Hospital · Newton, MA · NPI 1992737761

Care Compare affiliation Hospital
South Shore Hospital Inc. General Acute Care Hospital · South Weymouth, MA · NPI 1134227606

Care Compare affiliation Hospital
Tufts Medical Center, Inc. General Acute Care Hospital · Boston, MA · NPI 1730132515

Care Compare affiliation Hospital

Medicare Care Compare profile

Specialty: Anesthesiology
Education: Other, 2018
Medicare assignment: May accept Medicare assignment
Group practices: Commonwealth Anesthesia Associates, Inc (88 clinicians)
BMC Affiliated Physicians, Inc. (543 clinicians)
Coastal Medical Associates (443 clinicians)
Baystate Medical Practices Inc (1,350 clinicians)
Pratt Anesthesiology Associates Inc (153 clinicians)
Capa Anesthesia LLC (69 clinicians)

Practice addresses (Care Compare)

2014 Washington St
Newton, MA 02462-1607
Phone (617) 243-6298

235 N Pearl St
Brockton, MA 02301-1794
Phone (508) 427-3000

55 Fogg Rd
Weymouth, MA 02190-2432
Phone (781) 792-4136

736 Cambridge St
Brighton, MA 02135-2907
Phone (617) 789-3000

759 Chestnut St
Springfield, MA 01107-1619
Phone (413) 794-8121

800 Washington St
Boston, MA 02111-1552
Phone (617) 636-6044

99 Libbey Industrial Park
Weymouth, MA 02189-3101
Phone (781) 331-0537

Hospital & facility affiliations

Baystate Medical Center Hospital · Springfield, MA · CCN 220077
South Shore Hospital Hospital · South Weymouth, MA · CCN 220100
Tufts Medical Center Hospital · Boston, MA · CCN 220116
Newton-Wellesley Hospital Hospital · Newton, MA · CCN 220101
Boston Medical Center-Brighton Hospital · Brighton, MA · CCN 220036

Medicare participation

Medicare fee-for-service enrollment: Enrolled (2 enrollments) in MA, NH
Eligible to order & refer: Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

Enrollment ID	State	Provider type	PAC ID	Details
I20221110000404	MA	Practitioner - Anesthesiology	8022349828	Reassigns benefits to 14 organizations
I20250902000727	NH	Practitioner - Anesthesiology	8022349828	Reassigns benefits to 1 organization

National Provider Directory

Medicare enrollment (NPD): Yes
Credentials: Doctor of Osteopathy

State licenses

License	State	Type	Specialty
291468	MA	MD	Pain Medicine (Anesthesiology) Physician

Practice roles

Organization	Specialty	Status	New patients
Lawrence Anesthesia Services, LLC	Anesthesiology	Current since Aug 19, 2024	Accepting new patients
Tri Anesthesia LLC	Anesthesiology	Current since Apr 1, 2025	Accepting new patients
Gbaa Holdings, PLLC	Anesthesiology	Current since Nov 1, 2022	Accepting new patients
Commonwealth Anesthesia Associates, Inc	Anesthesiology	Current since Dec 29, 2025	Accepting new patients
Coastal Medical Associates	Anesthesiology	Current since Jun 27, 2024	Accepting new patients
Baystate Medical Practices, Inc		Current since Apr 30, 2025	Accepting new patients
Hospitalist Medicine Physicians of New York - Patchogue PC	Anesthesiology	Current since Jun 27, 2025	Accepting new patients
Steward Medical Group, Inc		Current since Jul 24, 2023	Accepting new patients
South Shore Medical Center, Inc.		Current since Jun 27, 2024	Accepting new patients
Steward Medical Group, Inc		Current since Jan 27, 2023	Accepting new patients
BMC Affiliated Physicians, Inc.		Current since Apr 1, 2025	Accepting new patients
Pratt Anesthesiology Associates, Inc	Anesthesiology	Current since Sep 17, 2025	Accepting new patients
Icon Anesthesia Services of New England LLC	Anesthesiology	Current since Jan 6, 2025	Accepting new patients
Steward Medical Group, Inc	Anesthesiology	Current since Jan 27, 2023	Accepting new patients
Cambridge Public Health Commission		Current	Accepting new patients
Capa Anesthesia LLC	Anesthesiology	Current since May 26, 2023	Accepting new patients
Cap Anesthesia, PC	Anesthesiology	Past	Accepting new patients

Locations

45 Discovery Way
#A
Acton, MA 01720
Phone (617) 936-7683

138 Haverhill St
Andover, MA 01810
Phone (978) 296-2302

200 Groton Rd
Ayer, MA 01432
Phone (978) 784-9000

800 Washington St
Boston, MA 02111
Phone (617) 636-4800

800 Washington St
#1
Boston, MA 02111

736 Cambridge St
Brighton, MA 02135
Phone (617) 789-2762

11 Nevins St
Ste 201
Brighton, MA 02135
Phone (617) 789-2442

235 N Pearl St
Brockton, MA 02301
Phone (508) 427-2525

1493 Cambridge St
Cambridge, MA 02139
Phone (617) 665-1185

140 Lincoln Ave
Haverhill, MA 01830
Phone (978) 374-2000

2 Pond Park Rd
Hingham, MA 02043
Phone (781) 337-5555

5 Tarkiln Rd
Kingston, MA 02364
Phone (781) 585-2200

100 Amesbury St
Ste 103
Lawrence, MA 01840
Phone (978) 683-0157

70 East St
Methuen, MA 01844
Phone (978) 682-1906

2014 Washington St
Newtonville, MA 02462
Phone (617) 243-6000

40 Holland St
Somerville, MA 02144
Phone (617) 629-6000

759 Chestnut St
Springfield, MA 01199
Phone (413) 794-3233

759 Chestnut St
Springfield, MA 01107
Phone (413) 794-6297

55 Fogg Rd
Weymouth, MA 02190
Phone (781) 340-4293

123 Summer St
Worcester, MA 01608
Phone (508) 363-6000

300 Grove St
Worcester, MA 01605
Phone (508) 754-0700

8 Prospect St
Nashua, NH 03060
Phone (603) 281-9275

10 Prospect St
Ste 101
Nashua, NH 03060
Phone (603) 578-9909

120 Brentwood Commons Way
Ste 510
Brentwood, TN 37027
Phone (253) 682-6040

Interoperability endpoints

Direct secure messaging: passaad252499@direct.bmc.masshiway.net
Direct secure messaging: passaad121724@direct.challiance.masshiway.net

Specialties & licenses

Specialty (taxonomy)	Code	License	State	Primary
Pain Medicine (Anesthesiology) Physician	207LP2900X	291468	MA
Anesthesiology Physician	207L00000X	291468	MA	Yes

Addresses

Primary practice location

736 Cambridge St
Brighton, MA 02135-2907

Mailing address

35 Hearthstone Rd
South Easton, MA 02375-1350
Phone (508) 873-5529

Other practice location 1

55 Fogg Rd
Weymouth, MA 02190-2432
Phone (781) 624-8000

Other practice location 2

2 Pond Park Rd
Hingham, MA 02043-4347
Phone (781) 624-8352

Other providers in Brighton, MA

All providers in Brighton, MA · Anesthesiology Physician in Massachusetts

Sources for this page

NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Mar 5, 2025. Information in NPPES is self-reported and not verified by CMS.
NUCC Health Care Provider Taxonomy: specialty names.
Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
Order and Referring (CMS).
Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.