Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Linda L Lewallen, MD

Internal Medicine Physician in Methuen, MA · enumerated 2006.

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

National Provider Identifier

1437224201

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Linda L Lewallen

Credential MD

Sex Female

Practice address 70 East St, Methuen, MA, 01844

Phone (941) 315-2217

Enumeration date Nov 21, 2006

Last updated in NPPES Apr 9, 2026

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MD442591 (PA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License PHY101196 (MA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 042.0040021 (VT) Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License ME71869 (FL) Secondary

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
2782758-00	Medicaid	FL	-

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

Where does Linda Lewallen practice?

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

What is the NPI number for Linda Lewallen?

The National Provider Identifier (NPI) for Linda Lewallen is 1437224201, 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 2026-04-09.