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

Mark Alan Siar

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1174476774

Mark Alan Siar is an Addiction (Substance Use Disorder) Counselor in Ridgeland, South Carolina. Registered with an NPI since 2026.

In the registry since
2026

Practice location Address checks out

124 Boardwalk Dr Ste A
Ridgeland, SC 29936-7994
Phone: (843) 645-2770
Fax: (843) 645-2771
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1174476774
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 16, 2026
Last updated in NPPESFebruary 16, 2026
Certification dateFebruary 16, 2026

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