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

Cassandra Matejka, PHD

Individual provider Specialist · NPI 1336711068

Cassandra Matejka, PHD is a Clinical Psychologist in West Fargo, North Dakota. Qualified in 2022, 4 years ago. Practices with Knowlton O'Neill and Associates PC, a 10-clinician group and accepts Medicare assignment. Licensed in North Dakota.

Years since qualifying
4
Licensed in
ND
In the registry since
2021
Specialties on file
2
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

1401 13th Ave E
West Fargo, ND 58078-3468
Phone: (701) 364-0060
Fax: (701) 364-0065
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 649 (ND)
Specialist Taxonomy 174400000X

Record details

NPI number1336711068
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 13, 2021
Last updated in NPPESNovember 6, 2023
Certification dateNovember 6, 2023
Mailing address1401 13th Ave E, West Fargo, ND 58078-3468

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Knowlton O'Neill And Associates Pc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in West Fargo