Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mass General Brigham Specialty Care, Inc.

Q: What is the NPI number for Mass General Brigham Specialty Care, Inc.?

The NPI for Mass General Brigham Specialty Care, Inc. is 1518864735, a Type 2 (organization) record in the CMS NPPES registry.

Medical Oncology Physician in Boston, MA · enumerated 2026 · authorized official Joanna Hazell, Director, Provider Enrollment.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1518864735

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Registry record

Entity type Organization (Type 2)

Legal business name Mass General Brigham Specialty Care, Inc.

Practice address 60 Fenwood Rd, Boston, MA, 02115

Phone (617) 732-5500

Enumeration date Oct 21, 2026

Last updated in NPPES Oct 29, 2026

Taxonomy & classification

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians Primary

207VX0201X Gynecologic Oncology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Joanna Hazell

Title Director, Provider Enrollment

Phone (781) 254-4865

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Mass General Brigham Specialty Care, Inc.?

NPPES lists Joanna Hazell (Director, Provider Enrollment) as the authorized official for this organization.

What is the NPI number for Mass General Brigham Specialty Care, Inc.?

The NPI for Mass General Brigham Specialty Care, Inc. is 1518864735, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Laura Morrissey Clinical Social Worker · Boston, MA NPI 1881619088 Margaret Latawiec Social Worker · Boston, MA NPI 1992876361 Ronit Herzog Pediatric Allergy/Immunology Physician · Boston, MA NPI 1346317823 Christopher Anderson Neurology Physician · Boston, MA NPI 1720108400 Sabrina Van Houten Clinical Social Worker · Boston, MA NPI 1780895862 Susanna Mierau Neurology Physician · Boston, MA NPI 1982809463 Jennifer Nosker Clinical Neuropsychologist · Boston, MA NPI 1467601468 Georg Gerber Anatomic Pathology & Clinical Pathology Physician · Boston, MA NPI 1083856645

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-10-29.