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

Mark W Fox MD PC

Organization Neurological Surgery Physician · NPI 1366613473

Mark W Fox MD PC is a Neurological Surgery Physician in Sioux Falls, South Dakota. Registered with an NPI since 2008.

In the registry since
2008
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1100 E 21st St Ste 220
Sioux Falls, SD 57105-1020
Phone: (605) 322-4825
Fax: (605) 322-4826
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X

Record details

NPI number1366613473
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mark Fox — Owner · (605) 322-4825
NPI enumeratedMarch 17, 2008
Last updated in NPPESJuly 18, 2008
Mailing address1100 E 21st St, Suite 220, Sioux Falls, SD 57105-1020

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