Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Douglas F Steenblock, MD, PSYCHIATRIST

Individual provider Psychiatry Physician · NPI 1104891191

Dr. Douglas F Steenblock, MD, PSYCHIATRIST is a Psychiatry Physician in Marshalltown, Iowa. Licensed in Iowa. Registered with an NPI since 2006.

Licensed in
IA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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
Fax: (641) 844-6302
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

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 30667 (IA)

Record details

NPI number1104891191
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PSYCHIATRIST
Sole proprietorNo
NPI enumeratedFebruary 22, 2006
Last updated in NPPESApril 16, 2026
Certification dateApril 16, 2026

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients63
Services billed 264 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Other providers in Marshalltown