Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1669771804 Individual Practitioner Female Practitioner

Dr. Marion Phoummarath Zahn , PhD

Psychologist • Katy, TX

Professional Overview & Biography Verified Profile Summary

Dr. Marion Zahn, PhD is a registered healthcare professional specializing in Psychologist in Katy, TX. Practice services are available at 24044 CINCO VILLAGE CENTER BLVD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

24044 Cinco Village Center Blvd
Suite 100

Katy, TX 774948432

Telephone 7139751222
Fax 8889751526
Associated Practice Facility / Clinic
🏢 Morello Family Therapy, P.a. Facility NPI 1134551450

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Katy, TX

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.5 Yrs
State Avg: 22.8 Yrs
Regional Practice Density
19 Specialists

Practicing in Katy, TX (2266 Statewide)

Telehealth Adoption Rate
5.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-01-27
Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License TX 34861

A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

Psychologist

NUCC Taxonomy Code: 103T00000X

State License None 7661

A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

Additional State Medicaid & Healthcare Payer Identifiers

Commercial Insurance / Payer ID Psypact Apit
7661

Secondary Practice Locations

9302 E 22nd St

Tucson, AZ 857107342

Phone: 5202785758

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

7 Associated Practitioners
Jennifer Schababerle , MS, CCC-SLP

Speech-Language Pathologist

NPI 1114497310

Master of Science, Speech-Language Pathologist (Certificate of Clinical Competence)

Jheri Walters , LCSW-S

Social Worker - Clinical

NPI 1174863955

LCSWS

Dr. Karen Jaggers , PsyD, LPC

Counselor - Mental Health

NPI 1326826371

Doctor of Psychology (Psy.D.), Licensed Professional Counselor

Adedamola Adefioye

Nurse Practitioner - Psychiatric/Mental Health

NPI 1528777554
Anne Morello , LMFT

Marriage & Family Therapist

NPI 1699029827

Licensed Marriage and Family Therapist

NPI 1750559043

Doctor of Chiropractic

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 26, 2025

Psychologist (License #7661 in None)

NPI Profile Active November 29, 2016

NPI status registered as active in NPPES database

📍
Updated Practice Location November 29, 2016

Registered at 24044 CINCO VILLAGE CENTER BLVD, SUITE 100, KATY, TX 774948432 (Tel: 7139751222)

📍
Updated Business Mailing Address November 29, 2016

Registered at 24044 CINCO VILLAGE CENTER BLVD, SUITE 100, KATY, TX 774948432 (Tel: 7139751222)

👤
Provider Name / Credentials Updated November 29, 2016

Recorded as MARION ZAHN, PH.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 29, 2016

Psychologist (License #34861 in TX)

🟢
Initial NPI Registration & Enumeration March 25, 2011

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1669771804
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 25, 2011
Last Update: January 27, 2026
Sole Proprietor: Yes

Mailing Address

24044 Cinco Village Center Blvd, Suite 100

Katy, TX 774948432

Phone: 7139751222

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.