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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Christopher John Marzec, RN

Clinical Nurse Specialist in Detroit, MI · enumerated 2023.

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

National Provider Identifier

1457047441

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Registry record

Entity type Individual (Type 1)
Name Mr. Christopher John Marzec
Credential RN
Sex Male
Practice address Detroit, MI, 48202
Phone (734) 752-7772
Enumeration date Apr 13, 2023
Last updated in NPPES Apr 13, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 4704286232 (MI) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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.

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Frequently asked questions

Where does Christopher Marzec practice?
The practice location on file with NPPES is in Detroit, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Christopher Marzec?
The National Provider Identifier (NPI) for Christopher Marzec is 1457047441, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-13.