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Maren Grimm, RPA

Radiology Practitioner Assistant in Santa Ana, CA · enumerated 2023 · practices at Orange County Radiation Oncology Medical Group.

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

National Provider Identifier

1679266753

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Registry record

Entity type Individual (Type 1)
Name Maren Grimm
Credential RPA
Sex Female
Practice address Santa Ana, CA, 92705
Phone (714) 643-5963
Enumeration date Jun 2, 2023
Last updated in NPPES Jun 2, 2023

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

Taxonomy & licenses

243U00000X Radiology Practitioner Assistant Technologists, Technicians & Other Technical Service Providers · License RHT00113706 (CA) 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

Where does Maren Grimm practice?
The practice location on file with NPPES is in Santa Ana, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Maren Grimm?
The National Provider Identifier (NPI) for Maren Grimm is 1679266753, 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 2023-06-02.