Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Luis Nicholas Zaiek, MD

Q: What is the NPI number for Luis Zaiek?

The National Provider Identifier (NPI) for Luis Zaiek is 1821277393, a Type 1 (individual) record in the CMS NPPES registry.

Mental Health Counselor in Allentown, PA · enumerated 2007.

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

National Provider Identifier

1821277393

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Registry record

Entity type Individual (Type 1)

Name Luis Nicholas Zaiek

Credential MD

Sex Male

Practice address 210 N 6th St, Allentown, PA, 18102

Phone (484) 221-9136

Fax (484) 221-9130

Enumeration date Oct 31, 2007

Last updated in NPPES Aug 4, 2008

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers 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

Where does Luis Zaiek practice?

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

What is the NPI number for Luis Zaiek?

The National Provider Identifier (NPI) for Luis Zaiek is 1821277393, 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 2008-08-04.