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

Nathan Merle Wolken, MA, CRC

Individual provider Mental Health Counselor · NPI 1790175669

Nathan Merle Wolken, MA, CRC is a Mental Health Counselor in Marshalltown, Iowa. Registered with an NPI since 2015.

In the registry since
2015
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1301 Summit St
Marshalltown, IA 50158-5484
Phone: (641) 752-1501
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1790175669
Entity typeIndividual (Type 1)
GenderMale
Credentials MA , CRC
Sole proprietorNo
NPI enumeratedJanuary 30, 2015
Last updated in NPPESApril 16, 2026
Certification dateApril 16, 2026

Other providers in Marshalltown