Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Youssef Assioun, MD

Individual provider Gastroenterology Physician · NPI 1639370919

Youssef Assioun, MD is a Gastroenterology in Saint Louis, Missouri. Qualified in 2003, 23 years ago. Practices with Mercy Clinic Gastroenterology LLC, a 65-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
23
Licensed in
MO
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

10012 Kennerly Rd Ste 102
Saint Louis, MO 63128-2197
Phone: (314) 543-5911
Fax: (314) 543-5914
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 2010006463 (MO)

Record details

NPI number1639370919
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 31, 2007
Last updated in NPPESSeptember 8, 2023
Certification dateSeptember 8, 2023
Mailing address10012 Kennerly Rd Ste 102, Saint Louis, MO 63128-2197

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Mercy Clinic Gastroenterology Llc — 65 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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