Iris Wanyun Liou, MD - Medicare Gastroenterology in Seattle, WA

Iris Wanyun Liou, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Seattle, Washington. She went to University Of Washington School Of Medicine and graduated in 2000 and has 24 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice The Association Of University Physicians and her current practice location is 1959 Ne Pacific St, Seattle, Washington. You can reach out to her office (for appointments etc.) via phone at (206) 598-4377.

Iris Wanyun Liou is licensed to practice in Washington (license number MD00042419) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1427163542.

Contact Information

Iris Wanyun Liou, MD
1959 Ne Pacific St,
Seattle, WA 98195-6175
(206) 598-4377
Not Available

Map and Direction




Physician's Profile

Full NameIris Wanyun Liou
GenderFemale
SpecialityGastroenterology
Experience24 Years
Location1959 Ne Pacific St, Seattle, Washington
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Iris Wanyun Liou attended and graduated from University Of Washington School Of Medicine in 2000
  NPI Data:
  • NPI Number: 1427163542
  • Provider Enumeration Date: 08/20/2006
  • Last Update Date: 06/05/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 8820070394
  • Enrollment ID: I20040607001231

Medical Identifiers

Medical identifiers for Iris Wanyun Liou such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427163542NPI-NPPES
0236999OtherWAL&I
1427163542MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD00042419 (Washington)Primary
207RT0003XInternal Medicine - Transplant Hepatology MD00042419 (Washington)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Washington Medical CtrSeattle, WAHospital
Olympic Medical CenterPort angeles, WAHospital
Jefferson HealthcarePort townsend, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Association Of University Physicians04461626973009

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. Iris Wanyun Liou allows following entities to bill medicare on her behalf.
Entity NameThe Association Of University Physicians
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023041159
PECOS PAC ID: 0446162697
Enrollment ID: O20031105000244

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. Iris Wanyun Liou 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
Iris Wanyun Liou, MD
Po Box 50095,
Seattle, WA 98145-5095

Ph: (206) 543-6420
Iris Wanyun Liou, MD
1959 Ne Pacific St,
Seattle, WA 98195-6175

Ph: (206) 598-4377

Reviews and Comments


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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.