Ayman Hisham Youssef, MD
Internal Medicine Physician · Seattle, WA
Ayman Hisham Youssef, MD is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1649920844, issued on Mar 28, 2022. Check the license (Washington MD.MD.61572787, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Ayman Hisham Youssef
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD.MD.61572787 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 598-4615
- Enumerated
- Mar 28, 2022
- Record last updated
- Jul 29, 2026
- Medicare enrollment
- Enrolled (PECOS I20250416003571); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ayman Hisham Youssef in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD.MD.61572787Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
318 Medicare Part D claims for 53 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium23 claims
- Amlodipine Besylate19 claims
- Losartan Potassium19 claims
- Atorvastatin Calcium18 claims
- Lisinopril14 claims
- Furosemide13 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.
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ayman Hisham Youssef among 3,079 internal medicine physician records in Washington
Ayman Hisham Youssef, MD is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 93% of them.
- NPI issued2022 · 93% of these records are older, 4% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2006 among the 1,852 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Julia Becke, MDSeattle, WA 981951306858451
- Hardeep Bhugra, MBBCHSeattle, WA 981951215940788
- Davonna Cufley, M.D.Seattle, WA 981951871582734
- Annie Fang, MDSeattle, WA 981951679572168
- Rebecca Gettelman, MDSeattle, WA 981951750491262
- Brian Goldstein, MDSeattle, WA 981951902821275
- Daniel Leung, MDSeattle, WA 981951104936731
- Xi Li, M.D.Seattle, WA 981951891737631
Common questions
What is Ayman Hisham Youssef, MD's NPI number?
Ayman Hisham Youssef, MD's National Provider Identifier (NPI) is 1649920844, issued on Mar 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Ayman Hisham Youssef, MD located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 598-4615. Providers update this record themselves, so call before visiting.
How can I verify Ayman Hisham Youssef, MD's license?
NPPES lists Washington license number MD.MD.61572787, 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 Ayman Hisham Youssef, MD prescribe under Medicare Part D?
In 2024, Ayman Hisham Youssef, MD had 318 Medicare Part D claims for 53 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.