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

Mark M. Theiss, MD, PC

Organization Orthopaedic Surgery Physician · NPI 1770716656

Mark M. Theiss, MD, PC is an Orthopaedic Surgery Physician in Fairfax, Virginia. Licensed in Virginia. Registered with an NPI since 2009.

Licensed in
VA
In the registry since
2009
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

8316 Arlington Blvd Ste 414
Fairfax, VA 22031-5207
Phone: (703) 573-2218
Fax: (703) 573-2373
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 0101036798 (VA)

Record details

NPI number1770716656
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Audrey Carr — Office Manager · (703) 573-2218
NPI enumeratedAugust 26, 2009
Last updated in NPPESAugust 26, 2009
Mailing address8316 Arlington Blvd, Suite 414, Fairfax, VA 22031-5207

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