Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 30 days.

JOHN MICHAEL RATZLOFF
NPI 1164344321
Psychologist - School in Sioux Falls, SD

Active since July 29, 2026
8505 E TORCHWOOD PL, SIOUX FALLS, SD 57110(605) 261-1324 Get Directions Write a Review

NPPES record added: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John Michael Ratzloff NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN MICHAEL RATZLOFF (NPI 1164344321) is an individual school provider in Sioux Falls, South Dakota and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1164344321
Entity TypeIndividualMale
Primary Taxonomy103TS0200X
Provider Legal NameJOHN MICHAEL RATZLOFF
Location Address8505 E TORCHWOOD PLSioux Falls, SD 57110-7644
Mailing Address8505 E Torchwood PlSioux Falls, SD 57110-7644
Sole ProprietorNo
Enumeration DateJuly 29, 2026
NPPES CertifiedJuly 29, 2026
NPI 1164344321 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologist · SchoolBehavioral Health & Social Service Providers
Taxonomy Code103TS0200X
Definition
A psychologist whose specialty is concerned with the science and practice of psychology with children, youth, families; learners of all ages; and the schooling process. The basic education and training of school psychologists prepares them to provide a range of psychological diagnosis, assessment, intervention, prevention, health promotion, and program development and evaluation services with a special focus on the developmental processes of children and youth within the context of schools, families and other systems. School psychologists are prepared to intervene at the individual and system level, and develop, implement, and evaluate preventive programs. In these efforts, they conduct ecologically valid assessments and intervene to promote positive learning environments within which children and youth from diverse backgrounds to ensure that all have equal access to effective educational and psychological services that promote healthy development
8505 E TORCHWOOD PL, Sioux Falls, SD 57110

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Ratzloff's NPI number?

The NPI number for John Ratzloff is 1164344321. It was assigned to this individual provider in the NPPES registry on July 29, 2026.

Where is John Ratzloff located?

John Ratzloff practices at 8505 E Torchwood Pl, Sioux Falls, SD 57110. The listed phone number is (605) 261-1324.

What is John Ratzloff's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in School, with taxonomy code 103TS0200X.

When was this NPI record last updated?

The NPPES record for John Ratzloff was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.