Oussama Moussan, M.D.
Gastroenterology Physician · Tacoma, WA
Oussama Moussan, M.D. is a gastroenterology physician with a practice address in Tacoma, Washington, and NPI 1467426171, issued on Feb 17, 2006. Check the license (Washington MD00033213, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Oussama Moussan
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD00033213 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3209 S 23RD St, Tacoma, WA 98405
- Phone
- (253) 272-8148
- Enumerated
- Feb 17, 2006
- Record last updated
- Apr 7, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (253) 404-0506
- Medicaid ID
- 8179855 WA
- Medicare enrollment
- Enrolled (PECOS I20051115000320); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 533 in Washington → Look up another NPI →
Also registered at 3209 S 23RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sanjay Agrawal, M.D.Gastroenterology Physician1710912894
- Steven Alabaster, MDGastroenterology Physician1801869623
- Winston BalangueTechnician/Technologist1932799848
- Garrick Brown, M.D.Gastroenterology Physician1407829047
- Shenise Brown, CRNACertified Registered Nurse Anesthetist1760715163
- Janet Caragan, ARNPNurse Practitioner1952339962
Verify Oussama Moussan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00033213Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average gastroenterology physician in 2024
646 Medicare Part D claims for 422 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Peg-3350 And Electrolytes123 claims
- Gavilyte-G105 claims
- Gavilyte-C85 claims
- Pantoprazole Sodium71 claims
- Omeprazole67 claims
- Famotidine56 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $174.16
6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Washington Gastroenterology PLLCPuyallup, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Oussama Moussan among 533 gastroenterology physician records in Washington
Oussama Moussan, M.D. is one of 533 gastroenterology physician records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 48% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1982 · median 2003 among the 373 with a school on file
- Record last updated2014 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Washington
There are 533 gastroenterology physician records in Washington.
All 533 in Washington → Every provider in Tacoma → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Steven Alabaster, MDTacoma, WA 984051801869623
- Richard Baerg, MDTacoma, WA 984051447237631
- Lanie Belic, M.D.Tacoma, WA 984051023081163
- John Carrougher, MDTacoma, WA 984051760469985
- Charles Donner, M.D.Tacoma, WA 984051144293127
- William Hirota, MDTacoma, WA 984051952388142
- William Holderman, M.D.Tacoma, WA 984051346213956
- Lin Huang, MD, PHDTacoma, WA 984051639154149
Common questions
What is Oussama Moussan, M.D.'s NPI number?
Oussama Moussan, M.D.'s National Provider Identifier (NPI) is 1467426171, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Oussama Moussan, M.D. located?
The NPPES record lists a practice address at 3209 S 23RD St, Tacoma, WA, 98405. Phone: (253) 272-8148. Providers update this record themselves, so call before visiting.
How can I verify Oussama Moussan, M.D.'s license?
NPPES lists Washington license number MD00033213, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Oussama Moussan, M.D. prescribe under Medicare Part D?
In 2024, Oussama Moussan, M.D. had 646 Medicare Part D claims for 422 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.