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

Individual provider Internal Medicine Physician · NPI 1487458543

Mark Jamal Sahyouni, DO is an Internal Medicine Physician in Columbia, South Carolina. Practices as a sole proprietor. Licensed in South Carolina.

Licensed in
SC
In the registry since
2025
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1801 Sunset Dr
Columbia, SC 29203-6803
Phone: (803) 434-4153
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence LL93943 (SC)

Record details

NPI number1487458543
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 1, 2025
Last updated in NPPESJuly 17, 2025
Certification dateJuly 17, 2025

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