Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Neilson James Mclean, MD

Specialist in Bethlehem, PA · enumerated 2011.

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

National Provider Identifier

1114223336

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Registry record

Entity type Individual (Type 1)

Name Dr. Neilson James Mclean

Credential MD

Sex Male

Practice address 801 Ostrum St, Bethlehem, PA, 18015

Phone (610) 954-3890

Fax (610) 954-3046

Enumeration date Feb 4, 2011

Last updated in NPPES Mar 29, 2011

Taxonomy & licenses

174400000X Specialist Other Service Providers · License MD438237 (PA) 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 Neilson Mclean?

The National Provider Identifier (NPI) for Neilson Mclean is 1114223336, a Type 1 (individual) record in the CMS NPPES registry.

Where does Neilson Mclean practice?

The practice location on file with NPPES is in Bethlehem, PA. 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 2011-03-29.