Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Anna Ruth Grandis
Pediatrics Physician in Oakland, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1013658558
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Registry record
Entity type Individual (Type 1)
Name Anna Ruth Grandis
Sex Female
Practice address 1411 E 31st St, Oakland, CA, 94602
Phone (510) 437-5039
Enumeration date Apr 6, 2022
Last updated in NPPES Sep 11, 2025
Taxonomy & licenses
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
What is the NPI number for Anna Grandis?
The National Provider Identifier (NPI) for Anna Grandis is 1013658558, a Type 1 (individual) record in the CMS NPPES registry.
Where does Anna Grandis practice?
The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Andrea Williams Family Medicine Physician · Oakland, CA NPI 1396733135 Oakcare Medical Group Inc Specialist · Oakland, CA NPI 1801887104 Bradley Frazee Emergency Medicine Physician · Oakland, CA NPI 1447241765 Susan Glasscock Emergency Clinical Nurse Specialist · Oakland, CA NPI 1518958834 Abraha Kidane Emergency Medicine Physician · Oakland, CA NPI 1942291265 Hillary Larkin Emergency Clinical Nurse Specialist · Oakland, CA NPI 1194716415 Martin Moran Emergency Clinical Nurse Specialist · Oakland, CA NPI 1447241773 Denae Reed Emergency Clinical Nurse Specialist · Oakland, CA NPI 1801887195
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.