NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Toby Ishizuka, DPM

Foot & Ankle Surgery Podiatrist in Alameda, CA · enumerated 2017.

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

National Provider Identifier

1942731021

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Toby Ishizuka
Credential DPM
Sex Male
Practice address 2059 Clinton Ave Ste 1, Alameda, CA, 94501
Phone (510) 521-2568
Fax (833) 600-1541
Enumeration date Mar 21, 2017
Last updated in NPPES Mar 12, 2026

Taxonomy & licenses

213ES0103X Foot & Ankle Surgery Podiatrist Podiatric Medicine & Surgery Service Providers · License E5638 (CA) Primary
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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 Toby Ishizuka practice?
The practice location on file with NPPES is in Alameda, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Toby Ishizuka?
The National Provider Identifier (NPI) for Toby Ishizuka is 1942731021, 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 2026-03-12.