Toan DO
NPI 1720617582 · Allergy & Immunology Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Toan DO is a Allergy & Immunology Physician provider in San Diego, CA (NPI 1720617582).
Provider details
- NPI number
- 1720617582
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A185667 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$11,223 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 9850 Genesee Ave Ste 710La Jolla, CA 92037-1218Phone: (858) 260-2977Fax: (858) 260-2978
- 3181 Sw Sam Jackson Park RdPortland, OR 97239-3011Phone: (503) 494-8211
Registry dates
- Enumerated
- 2020-04-03
- Last updated
- 2025-07-16
- Certified
- 2025-07-16
Frequently asked questions
- What is Toan DO's NPI number?
- Toan DO's National Provider Identifier (NPI) is 1720617582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Toan DO's specialty?
- Toan DO is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Toan DO located?
- Toan DO's practice location on file with NPPES is 9833 Pacific Heights Blvd Ste J, San Diego, CA 92121-4707.
- What is Toan DO's phone number?
- The practice phone number listed in the NPPES registry for Toan DO is (858) 458-0940.
- Does Toan DO accept Medicare?
- Toan DO is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Toan DO's NPI active?
- Yes — Toan DO's NPI (1720617582) is active in the NPPES registry as of the last update on 2025-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.