Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christina M Holmer, RN

Psychiatric/Mental Health Registered Nurse in Sandusky, OH · enumerated 2019.

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

National Provider Identifier

1508324039

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Registry record

Entity type Individual (Type 1)

Name Christina M Holmer

Credential RN

Sex Female

Practice address 1925 Hayes Ave, Sandusky, OH, 44870

Phone (419) 557-5177

Enumeration date Mar 4, 2019

Last updated in NPPES Mar 4, 2019

Taxonomy & licenses

163WP0808X Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License RN385450 (OH) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Christina Holmer practice?

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

What is the NPI number for Christina Holmer?

The National Provider Identifier (NPI) for Christina Holmer is 1508324039, 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 2019-03-04.