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

Dr. Matthew D Christiansen, PHD

Individual provider Clinical Psychologist · NPI 1639136088

Dr. Matthew D Christiansen, PHD is a Clinical Psychologist in Mitchell, South Dakota. Qualified in 2002, 24 years ago. Works from 2 locations and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
24
Licensed in
SD
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

115 E Havens Ave Ste 102
Mitchell, SD 57301-4462
Phone: (605) 299-2829
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3413 N Ohlman St, Mitchell, SD 57301-5052 — (605) 299-2829

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 488 (SD)

Record details

NPI number1639136088
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedApril 28, 2006
Last updated in NPPESSeptember 8, 2024
Certification dateSeptember 8, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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