Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David A D'Alessandro, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Boston, MA · enumerated 2006.

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

National Provider Identifier

1922188580

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Registry record

Entity type Individual (Type 1)

Name David A D'Alessandro

Credential M.D.

Sex Male

Practice address 55 Fruit Street, Cox 630, Massachusetts General Hospital, Division of Cardiac Sur, Boston, MA, 02114

Phone (617) 726-8841

Fax (617) 726-5804

Enumeration date Oct 17, 2006

Last updated in NPPES Jun 10, 2016

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 264761 (MA) Primary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 217183-1 (NY) Secondary

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.

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Frequently asked questions

How do I verify David D'Alessandro's NPI record?

Cross-check NPI 1922188580 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1922188580 active?

Yes, as of the latest NPPES snapshot, NPI 1922188580 is active (record last updated 2016-06-10).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-10.