Justin Treat, DO
NPI 1801826516 · Allergy & Immunology Physician · Portland, OR
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Treat, DO is a Allergy & Immunology Physician provider in Portland, OR (NPI 1801826516).
Provider details
- NPI number
- 1801826516
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- DO26495 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 276 | 113 |
| Ipratropium Bromide | 227 | 106 |
| Montelukast Sodium | 97 | 39 |
| Ciclesonidebrand: Alvesco | 75 | 32 |
| Fluticasone Propionate | 54 | 24 |
| Fluticasone Propion/Salmeterolbrand: Wixela Inhub | 51 | 26 |
| Prednisone | 46 | 31 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-05
- Last updated
- 2022-04-20
- Certified
- 2022-04-20
Frequently asked questions
- What is Justin Treat's NPI number?
- Justin Treat's National Provider Identifier (NPI) is 1801826516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Treat's specialty?
- Justin Treat is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Treat located?
- Justin Treat's practice location on file with NPPES is 3600 N Interstate Ave, Portland, OR 97227-1106.
- What is Justin Treat's phone number?
- The practice phone number listed in the NPPES registry for Justin Treat is (503) 612-3375.
- Does Justin Treat accept Medicare?
- Justin Treat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Treat's NPI active?
- Yes — Justin Treat's NPI (1801826516) is active in the NPPES registry as of the last update on 2022-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.