Quick answers
- Where does Toan Do see patients?
- Medicare's clinician data lists 3 practice locations, including Coronado, CA, Chula Vista, CA and La Jolla, CA. Call before your visit to confirm the address.
- What is Toan Do's specialty?
- Medicare lists Allergy/Immunology as the primary specialty, and also Internal Medicine.
- Does Toan Do accept Medicare assignment?
- Yes. Medicare's clinician data says Toan Do accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Toan Do offer telehealth?
- Medicare's clinician data says Toan Do offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Toan Do?
- (858) 458-0940, as listed in official Medicare / NPI Registry data.
- What is Toan Do's NPI number?
- 1720617582. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Toan Do is enrolled with Medicare (CMS data updated 2026-10-02).
- 230 Prospect Pl, Suite 220Coronado, CA 92118 (858) 458‑0940
- 910 Hale Pl, Suite 110Chula Vista, CA 91914 (619) 704‑7577
- 9850 Genesee Ave, Suite 710La Jolla, CA 92037 (858) 260‑2977
Group practices
Medicare enrollment lists Toan Do as a member of these groups (CMS data updated 2026-10-02).
- Modena Allergy and Asthma Inc.26 clinicians in the group
- Modena Allergy and Asthma II Inc.7 clinicians in the group
Specialties
- Allergy/Immunologyprimary
- Internal Medicinealso
Other allergist and immunologists in Coronado
Clinicians with the same Medicare primary specialty in Coronado, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1720617582 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians