Dr Justin Stephen Treat, DO - Medicare Allergy & Immunology in Portland, OR

Dr Justin Stephen Treat, DO is a medicare enrolled "Allergy & Immunology" physician in Portland, Oregon. His current practice location is 3600 N Interstate Ave, Portland, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 612-3375.

Dr Justin Stephen Treat is licensed to practice in Oregon (license number DO26495) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1801826516.

Contact Information

Dr Justin Stephen Treat, DO
3600 N Interstate Ave,
Portland, OR 97227-1106
(503) 612-3375
(503) 612-3376

Map and Direction




Physician's Profile

Full NameDr Justin Stephen Treat
GenderMale
SpecialityAllergy & Immunology
Location3600 N Interstate Ave, Portland, Oregon
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1801826516
  • Provider Enumeration Date: 07/05/2006
  • Last Update Date: 04/20/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 8426054958
  • Enrollment ID: I20061006000007

Medical Identifiers

Medical identifiers for Dr Justin Stephen Treat such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1801826516NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207K00000XAllergy & Immunology DO26495 (Oregon)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Justin Stephen Treat allows following entities to bill medicare on his behalf.
Entity NameKaiser Foundation Health Plan Of The Northwest
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184786527
PECOS PAC ID: 5799688230
Enrollment ID: O20040130000799

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Justin Stephen Treat is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Justin Stephen Treat, DO
3600 N Interstate Ave,
Portland, OR 97227-1106

Ph: (503) 612-3375
Dr Justin Stephen Treat, DO
3600 N Interstate Ave,
Portland, OR 97227-1106

Ph: (503) 612-3375

Reviews and Comments


Allergy & Immunology Doctors in Portland, OR

Dr. Clifford Joe Anderson, MD
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Phone: 503-223-6480    Fax: 503-294-1868
Jennifer Kay Bane, PA-C
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Medicare: Accepting Medicare Assignments
Practice Location: 511 Sw 10th Ave, Suite 1301, Portland, OR 97205
Phone: 503-228-0155    Fax: 503-226-8342
Dr. Michael J Noonan, MD
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Practice Location: 9495 Sw Locust St Ste A, Portland, OR 97223
Phone: 503-636-9011    Fax: 503-636-3952
Cristina Swanson, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239
Phone: 503-494-8211    
Dr. Douglas A Shumaker, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 9701 Sw Barnes Rd, Ste 300, Portland, OR 97225
Phone: 503-297-8081    Fax: 503-292-6601
Michael Vernon Osborne, M.D.
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 5440 Sw Westgate Dr, 220, Portland, OR 97221
Phone: 503-292-7577    Fax: 503-292-7971
Dr. Laurel Rene Anderson Cowell, MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 9701 Sw Barnes Rd Ste 130, Portland, OR 97225
Phone: 503-297-4779    Fax: 503-294-1868

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.