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

Dr. Mark C Hedetniemi, DPT

Individual provider Orthopedic Physical Therapist · NPI 1780841866

Dr. Mark C Hedetniemi, DPT is an Orthopedic Physical Therapist in Millsboro, Delaware. Licensed in Delaware. Registered with an NPI since 2008.

Licensed in
DE
In the registry since
2008
What do these letters mean?
DPT — Doctor of Physical Therapy
The doctoral degree now required to enter physical therapy practice.

See every abbreviation used in this directory →

Practice location Address checks out

232 Mitchell St Ste 101
Millsboro, DE 19966-9412
Phone: (302) 934-1500
Fax: (302) 934-6628
Show map & directions

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

Specialties & licences

Orthopedic Physical Therapist (primary) Taxonomy 2251X0800X · Licence J1-0001757 (DE)

Record details

NPI number1780841866
Entity typeIndividual (Type 1)
GenderMale
Credentials DPT
Sole proprietorNo
NPI enumeratedMay 17, 2008
Last updated in NPPESMay 17, 2008
Mailing address232 Mitchell St, Suite 101, Millsboro, DE 19966-9412

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