Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christina L Costantino, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Boston, MA · enumerated 2014.

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

National Provider Identifier

1912311036

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Registry record

Entity type Individual (Type 1)

Name Christina L Costantino

Credential MD

Sex Female

Practice address Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114

Phone (617) 726-2800

Enumeration date Jun 17, 2014

Last updated in NPPES Mar 29, 2024

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License L-259673 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Christina Costantino?

The National Provider Identifier (NPI) for Christina Costantino is 1912311036, a Type 1 (individual) record in the CMS NPPES registry.

Where does Christina Costantino practice?

The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-29.