DENIS J YOSHII, DO INC
DENIS J YOSHII, DO INC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1881712578, based in Foothill Ranch, CA. The organization lists 2 taxonomy classifications, with Pediatric Allergy/Immunology Physician recorded as primary.
Getting there
The practice address on file is 26750 TOWNE CENTRE DR SUITE D, Foothill Ranch, CA 92610. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 20A6936 | CA | Allergy & Immunology Physician |
| 20A6936 | CA | Pediatric Allergy/Immunology Physician primary |
This provider holds licence 20A6936 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 3779719448
- Enrollment ID
- O20131202001545
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Pediatric Allergy/Immunology covers
A pediatrician who specializes in the diagnosis and treatment of allergies, allergic reactions, and immunologic diseases in children. NUCC Health Care Provider Taxonomy, code 2080P0201X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207K00000X | Allergy & Immunology Physician | 20A6936 | CA | |
| 2080P0201X | Pediatric Allergy/Immunology Physician Pediatric Allergy/Immunology | 20A6936 | CA | primary |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1881712578 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Mar 27, 2007 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Practice address |
26750 TOWNE CENTRE DR SUITE D Foothill Ranch, CA 92610 (949) 916-0888 Fax (714) 549-7553 |
| Other names |
Adams Allergy Former Legal Name |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 8 | 8 | 1 | 7 | 1 | 2 | 5 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 7 | 1 | 5 | 1 | 4 | 5 | 5 |
Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.