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Toan Do

Allergy & Immunology Physician in San Diego, CA · enumerated 2020.

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

National Provider Identifier

1720617582

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Registry record

Entity type Individual (Type 1)
Name Toan Do
Sex Male
Practice address 9833 Pacific Heights Blvd Ste J, San Diego, CA, 92121
Phone (858) 458-0940
Fax (858) 458-3688
Enumeration date Apr 3, 2020
Last updated in NPPES Jul 16, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A185667 (CA) Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License PG206374 (OR) Secondary
207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License A185667 (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

What is the NPI number for Toan Do?
The National Provider Identifier (NPI) for Toan Do is 1720617582, a Type 1 (individual) record in the CMS NPPES registry.
Where does Toan Do practice?
The practice location on file with NPPES is in San Diego, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-16.