Dr William Toan Nguyen, MD - Medicare Allergy/immunology in Redmond, WA

Dr William Toan Nguyen, MD is a medicare enrolled "Allergy & Immunology" physician in Redmond, Washington. He went to University Of Texas Medical School At Houston and graduated in 1997 and has 27 years of diverse experience with area of expertise as Allergy/immunology. He is a member of the group practice Northwest Asthma And Allergy Center and his current practice location is 8301 161st Ave Ne Ste 308, Redmond, Washington. You can reach out to his office (for appointments etc.) via phone at (206) 527-1200.

Dr William Toan Nguyen is licensed to practice in Washington (license number MD61174262) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1861445017.

Contact Information

Dr William Toan Nguyen, MD
8301 161st Ave Ne Ste 308,
Redmond, WA 98052-3858
(206) 527-1200
Not Available

Map and Direction




Physician's Profile

Full NameDr William Toan Nguyen
GenderMale
SpecialityAllergy/immunology
Experience27 Years
Location8301 161st Ave Ne Ste 308, Redmond, Washington
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr William Toan Nguyen attended and graduated from University Of Texas Medical School At Houston in 1997
  NPI Data:
  • NPI Number: 1861445017
  • Provider Enumeration Date: 05/18/2006
  • Last Update Date: 03/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 8527955442
  • Enrollment ID: I20220329001148

Medical Identifiers

Medical identifiers for Dr William Toan Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861445017NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207K00000XAllergy & Immunology MD61174262 (Washington)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northwest Asthma And Allergy Center650775974315

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 William Toan Nguyen allows following entities to bill medicare on his behalf.
Entity NameNorthwest Asthma & Allergy Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760620462
PECOS PAC ID: 6507759743
Enrollment ID: O20040209000462

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 William Toan Nguyen 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 William Toan Nguyen, MD
9725 3rd Ave Ne Ste 500,
Seattle, WA 98115-2024

Ph: (206) 527-1200
Dr William Toan Nguyen, MD
8301 161st Ave Ne Ste 308,
Redmond, WA 98052-3858

Ph: (206) 527-1200

Reviews and Comments


Allergy & Immunology Doctors in Redmond, WA

Michael Weiss, M.D.
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 8301 161st Ave Ne, Suite 208, Redmond, WA 98052
Phone: 425-885-0261    Fax: 425-883-8474
Dr. David S. Buscher, M.D.
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 8195 166th Ave Ne, Suite 101, Redmond, WA 98052
Phone: 425-284-1586    Fax: 425-284-4379

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.