Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leslie E Schwab, M.D.

Internal Medicine Physician in Concord, MA · enumerated 2006 · practices at Atrius Health Inc. Dba Harvard Vanguard Medical Associates.

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

National Provider Identifier

1386602357

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Registry record

Entity type Individual (Type 1)

Name Leslie E Schwab

Credential M.D.

Sex Male

Practice address 330 Baker Ave, Internal Medicine, Concord, MA, 01742

Phone (978) 287-9350

Fax (978) 287-9356

Enumeration date May 1, 2006

Last updated in NPPES Nov 17, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 43020 (MA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
0016168	Other	MA	NEIGHBORHOOD HEALTH
3040402	Medicaid	MA	-
B10208202	Other	MA	CIGNA
4112076	Other	MA	AETNA
65065	Other	MA	HARVARD PILGRIM
714179	Other	MA	TUFTS
J07884	Other	MA	BLUE CROSS

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

Where does Leslie Schwab practice?

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

What is the NPI number for Leslie Schwab?

The National Provider Identifier (NPI) for Leslie Schwab is 1386602357, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-17.