Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Toan DO

Individual provider Internal Medicine Physician · NPI 1720617582

Toan DO practises Allergy/Immunology in San Diego, California. Qualified in 2020, 6 years ago. Practices with Modena Allergy and Asthma II Inc, a 7-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California and Oregon.

Years since qualifying
6
Licensed in
CA, OR
In the registry since
2020
Specialties on file
4
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Practice location Address checks out

9833 Pacific Heights Blvd Ste J
San Diego, CA 92121-4707
Phone: (858) 458-0940
Fax: (858) 458-3688
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 9850 Genesee Ave Ste 710, La Jolla, CA 92037-1218 — (858) 260-2977
  • 3181 Sw Sam Jackson Park Rd, Portland, OR 97239-3011 — (503) 494-8211

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence A185667 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A185667 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence PG206374 (OR)

Record details

NPI number1720617582
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 3, 2020
Last updated in NPPESJuly 16, 2025
Certification dateJuly 16, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Modena Allergy And Asthma Ii Inc. — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,405 29 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Modena Allergy and Asthma II Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 7 clinicians in the practice; 5 are shown here.

Other providers in San Diego