Oussama Moussan, MD - Medicare Gastroenterology in Tacoma, WA

Oussama Moussan, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Tacoma, Washington. He graduated from medical school in 1982 and has 42 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Washington Gastroenterology Pllc and his current practice location is 3209 S 23rd St, Ste. #340, Tacoma, Washington. You can reach out to his office (for appointments etc.) via phone at (253) 272-8148.

Oussama Moussan is licensed to practice in Washington (license number MD00033213) 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 1467426171.

Contact Information

Oussama Moussan, MD
3209 S 23rd St, Ste. #340,
Tacoma, WA 98405-1602
(253) 272-8148
(253) 404-0506

Map and Direction




Physician's Profile

Full NameOussama Moussan
GenderMale
SpecialityGastroenterology
Experience42 Years
Location3209 S 23rd St, Tacoma, 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:
  • Oussama Moussan graduated from medical school in 1982
  NPI Data:
  • NPI Number: 1467426171
  • Provider Enumeration Date: 02/17/2006
  • Last Update Date: 04/07/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 9739071671
  • Enrollment ID: I20051115000320

Medical Identifiers

Medical identifiers for Oussama Moussan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467426171NPI-NPPES
MD00033213OtherWAWA LICENSE
8179855MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD00033213 (Washington)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Multicare Good Samaritan HospitalPuyallup, WAHospital
Tacoma General Allenmore HospitalTacoma, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Washington Gastroenterology Pllc6204194848115

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. Oussama Moussan allows following entities to bill medicare on his behalf.
Entity NameWashington Gastroenterology Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306364401
PECOS PAC ID: 6204194848
Enrollment ID: O20180103000884

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. Oussama Moussan 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
Oussama Moussan, MD
2420 S Union Ave, Ste 200,
Tacoma, WA 98405-1322

Ph: (253) 272-8148
Oussama Moussan, MD
3209 S 23rd St, Ste. #340,
Tacoma, WA 98405-1602

Ph: (253) 272-8148

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.

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