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

Mark S. Sullivan, MD, PLLC

Organization Specialist · NPI 1821208182

Mark S. Sullivan, MD, PLLC is a Specialist in Oklahoma City, Oklahoma. Licensed in Oklahoma. Registered with an NPI since 2007.

Licensed in
OK
In the registry since
2007
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

3366 NW Expressway St Ste 720
Oklahoma City, OK 73112-4462
Phone: (405) 947-0676
Fax: (405) 945-4876
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence OKC8667 (OK)

Record details

NPI number1821208182
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mark Sullivan — President · (405) 947-0676
NPI enumeratedMay 23, 2007
Last updated in NPPESApril 20, 2008
Mailing address3366 Nw Expressway, Suite 720, Oklahoma City, OK 73112-4462

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