Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marissa Zerby

Counselor in Harrisburg, PA · enumerated 2018.

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

National Provider Identifier

1043715576

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Registry record

Entity type Individual (Type 1)

Name Marissa Zerby

Sex Female

Practice address 548 S 17th St, Harrisburg, PA, 17104

Phone (717) 695-7919

Fax (717) 695-7610

Enumeration date Mar 27, 2018

Last updated in NPPES Mar 27, 2018

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Primary

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

What is the NPI number for Marissa Zerby?

The National Provider Identifier (NPI) for Marissa Zerby is 1043715576, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marissa Zerby practice?

The practice location on file with NPPES is in Harrisburg, 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 2018-03-27.