1. Home
  2. Directory
  3. Iowa
  4. Dubuque
  5. Psychologist
  6. NPI Profile

DR. MARY MADELINE JOHNSON PH.D
NPI 1124162763
Psychologist - Clinical in Dubuque, IA

Active since February 16, 2007
16306 FOREST GATE RD, DUBUQUE, IA 52001(563) 556-7071 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Mary Madeline Johnson Ph.d NPPES

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

DR. MARY MADELINE JOHNSON PH.D (NPI 1124162763) is an individual clinical provider in Dubuque, Iowa, licensed in Iowa (00568) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1124162763
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. MARY MADELINE JOHNSONCredential: PH.D
Location Address16306 FOREST GATE RDDubuque, IA 52001-9701
Mailing Address16306 Forest Gate RdDubuque, IA 52001-9701 · (563) 556-7071
Phone(563) 556-7071
Sole ProprietorYes
Enumeration DateFebruary 16, 2007
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1124162763 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in IA · 00568
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
Also ListedPsychologistTaxonomy 103T00000X · License 00568 (IA)
16306 FOREST GATE RD, Dubuque, IA 52001
Open in Google Maps ↗

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 Mary Johnson's NPI number?

The NPI number for Mary Johnson is 1124162763. It was assigned to this individual provider in the NPPES registry on February 16, 2007.

Where is Mary Johnson located?

Mary Johnson practices at 16306 Forest Gate Rd, Dubuque, IA 52001. The listed phone number is (563) 556-7071.

What is Mary Johnson's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Mary Johnson was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.