Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Olivia Marais, MD
Epilepsy Physician in Palo Alto, CA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578309597
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Registry record
Entity type Individual (Type 1)
Name Olivia Marais
Credential MD
Sex Female
Practice address 213 Quarry Road, 4th Floor, Room 4871, Palo Alto, CA, 94304
Phone (650) 721-5552
Enumeration date Jul 9, 2024
Last updated in NPPES Jul 9, 2024
Taxonomy & licenses
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.
Frequently asked questions
Where does Olivia Marais practice?
The practice location on file with NPPES is in Palo Alto, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Olivia Marais?
The National Provider Identifier (NPI) for Olivia Marais is 1578309597, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-09.