Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Matthew Smith, MD PHD

Medical Oncology Physician in Boston, MA · enumerated 2005.

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

National Provider Identifier

1679554588

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Registry record

Entity type Individual (Type 1)

Name Dr. Matthew Smith

Credential MD PHD

Sex Male

Practice address 100 Blossom St, Hematology Oncology Associates Cox 640, Boston, MA, 02114

Phone (617) 724-5257

Fax (617) 724-3166

Enumeration date Nov 8, 2005

Last updated in NPPES Feb 11, 2026

Taxonomy & licenses

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 79707 (MA) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 79707 (MA) Secondary

Other identifiers

Identifier	Type	State	Issuer
J30604	Other	MA	BCBS MA
3150691	Medicaid	MA	-
079707	Other	MA	TUFTS HEALTH PLAN

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

What is the NPI number for Matthew Smith?

The National Provider Identifier (NPI) for Matthew Smith is 1679554588, a Type 1 (individual) record in the CMS NPPES registry.

Where does Matthew Smith practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-11.