Dr. Justin S. Treat
- Gender: Male
- Experience: 18 years
- Sole propriator: No
- NPI: 1801826516
Dr. Justin S. Treat DO
Allergist and Immunologist
He is located at 3600 North Interstate Avenue in Portland, OR 97227. Can help patients with the following: Chronic Rhinitis, Eye Allergy, Food Allergies, Food Allergy, Lactose Intolerance, Sinusitis. His National Provider Identifier (NPI) number is 1801826516. Appointment can be made via the phone number (503) 612-3375. He also has a website where you can get more information. The website can be found at https://healthy.kaiserpermanente.org/health/poc?uri=my-doctor:dynamic&id=0910469&kpSearch=. He is affiliated with 1 practices.
Conditions treated
Dr. Justin Stephen Treat, being an allergist and immunologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Justin S. Treat.
- Allergic Reaction
- Allergies
- Asthma
- Celiac Disease
- Chronic Rhinitis
- Contact Dermatitis
- Eosinophilic Esophagitis
- Eye Allergy
- Food Allergies
- Food Allergy
- Hay Fever
- Lactose Intolerance
- Mold Exposure
- Peanut Allergy
- Pink Eye
- Plant Contact Allergy
- Sinusitis
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Justin S. Treat as in-network for the following 2026 plans.
Health plans
Kaiser Permanente
Network data as of Sep 29, 2025, as reported by the insurer.
Show all 9 plans from Kaiser Permanente
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| KP OR Bronze 6000 | EPO · Expanded Bronze | Tier One Referral Required | Accepting new patients |
| KP OR Bronze HSA 7100 | EPO · Expanded Bronze | Tier One Referral Required | Accepting new patients |
| KP OR Gold 0 | EPO · Gold | Tier One Referral Required | Accepting new patients |
| KP OR Gold 1750 | EPO · Gold | Tier One Referral Required | Accepting new patients |
| KP OR Silver 3000 | EPO · Silver | Tier One Referral Required | Accepting new patients |
| KP OR Silver 4000 | EPO · Silver | Tier One Referral Required | Accepting new patients |
| KP Oregon Standard Bronze Plan | EPO · Expanded Bronze | Tier One Referral Required | Accepting new patients |
| KP Oregon Standard Gold Plan | EPO · Gold | Tier One Referral Required | Accepting new patients |
| KP Oregon Standard Silver Plan | EPO · Silver | Tier One Referral Required | Accepting new patients |
Dental plans
Kaiser Permanente
Network data as of Sep 29, 2025, as reported by the insurer.
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| KP OR Family Dental - $100 Ded | EPO · Low | Tier One Referral Required | Accepting new patients |
| KP OR Family Dental - $1000 | EPO · Low | Tier One Referral Required | Accepting new patients |
| KP OR Family Dental - $1000/$50 Ded | EPO · High | Tier One Referral Required | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Justin S. Treat is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Justin S. Treat is enrolled to bill Medicare as a Practitioner - Allergy/immunology (also registered under: Practitioner - Internal Medicine) .
Bills through: Kaiser Foundation Health Plan Of The Northwest
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Other ways to reach out
- Website: https://healthy.kaiserpermanente.org/health/poc?uri=my-doctor:dynamic&id=0910469&kpSearch=
Looking for more Allergist and Immunologists?
Here are allergist and immunologists in Oregon you may want to explore.
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- Address: Suite C 2201 Willamette Street Eugene, 97405, OR
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- Address: 233 Northwest 16th Avenue Portland, 97209, OR
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- Address: 1793 13th Street Southeast Salem, 97302, OR
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- Address: 3181 Southwest Sam Jackson Park Road Portland, 97239, OR
- Gender: Female
- Address: 3181 Southwest Sam Jackson Park Road Portland, 97239, OR
- Gender: Male
- Address: 1750 Thompson Road Coos Bay, 97420, OR
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- Address: Suite 150 330 South Garden Way Eugene, 97401, OR
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- Address: Dept Of Allergy 10180 Southeast Sunnyside Road Clackamas, 97015, OR
- Gender: Male
- Address: 3860 Crater Lake Avenue Medford, 97504, OR
- Gender: Female
- Address: 3181 Southwest Sam Jackson Park Road Portland, 97239, OR
Questions & Answers
Does Dr. Justin Stephen Treat accept insurance?
Dr. Justin Stephen Treat is listed in-network for 12 ACA Marketplace (Obamacare/HealthCare.gov) plans from Kaiser Permanente. See the Marketplace plans section for details.
What conditions does Dr. Justin Stephen Treat treat?
Dr. Justin Stephen Treat provides treatment for Chronic Rhinitis, Eye Allergy, Food Allergies, Food Allergy, Lactose Intolerance, Sinusitis. For the full list see this list.
Does Dr. Justin Stephen Treat have affiliation with practices?
Dr. Justin Stephen Treat is affiliated with Allergy & Asthma Center.
Where can you meet with Dr. Justin Stephen Treat?
Dr. Justin Stephen Treat's office is located at 3600 North Interstate Avenue in Portland, OR 97227.