Toan Do
Allergy & Immunology Physician · San Diego, CA
Toan Do is an allergy & immunology physician with a practice address in San Diego, California, and NPI 1720617582, issued on Apr 3, 2020. Check the license (California A185667, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Toan Do
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License numbers
- A185667 CA
PG206374 OR
Self-reported in NPPES; status is on the state search - Practice location
- 9833 Pacific Heights Blvd Ste J, San Diego, CA 92121
- Phone
- (858) 458-0940
- Enumerated
- Apr 3, 2020
- Record last updated
- Jul 16, 2025
- Fax
- (858) 458-3688
- Medicare enrollment
- Enrolled (PECOS I20250905002306); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Also registered at 9833 Pacific Heights Blvd Ste J
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ha Shin, MDAllergy & Immunology Physician1497216360
Verify Toan Do in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A185667Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $11,223.19
15 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Modena Allergy And Asthma II Inc.Chula Vista, CA
- Modena Allergy And Asthma Inc.La Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Toan Do among 444 allergy & immunology physician records in California
Toan Do is one of 444 allergy & immunology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 97% of them.
- NPI issued2020 · 97% of these records are older, under 1% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2004 among the 281 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
All 444 in California → Every provider in San Diego → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Ha Shin, MDSan Diego, CA 921211497216360
- Eric Jones, MDSan Diego, CA 921201629431259
- Patricia KeefeSan Diego, CA 921201447419502
- Marc Riedl, MDSan Diego, CA 921221285654889
- Seema Aceves, M.D., PH.D.San Diego, CA 921231366511628
- Mercedes Amado, M.D.San Diego, CA 921231477510287
- John Bastian, M.D.San Diego, CA 921231316018179
- William Ebbeling, M.D.San Diego, CA 921231205808284
Common questions
What is Toan Do's NPI number?
Toan Do's National Provider Identifier (NPI) is 1720617582, issued on Apr 3, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Toan Do located?
The NPPES record lists a practice address at 9833 Pacific Heights Blvd Ste J, San Diego, CA, 92121. Phone: (858) 458-0940. Providers update this record themselves, so call before visiting.
How can I verify Toan Do's license?
NPPES lists California license number A185667, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.