KT PSYCHOLOGY GROUP PC
NPI 1093663668
Psychologist - Clinical in Orange, CA

NPI Status: Active since March 19, 2026

Contact Information

500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA
ZIP 92868
Phone: (949) 866-3392

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  • Organization
  • Psychologist
  • Clinical

About KT PSYCHOLOGY GROUP PC

This page provides the complete NPI Profile along with additional information for Kt Psychology Group Pc, a provider established in Orange, California operating as a Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1093663668 assigned on March 2026. The practitioner's primary taxonomy code is 103TC0700X. The provider is registered as an organization and their NPI record was last updated March 2026. Kt Psychology Group Pc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Krystianna Nguyen Ph. D. (President)

NPI
1093663668
Provider Name
KT PSYCHOLOGY GROUP PC
Entity Type
Organization
Location Address
500 N STATE COLLEGE BLVD STE 1100 ORANGE, CA 92868
Location Phone
(949) 866-3392
Mailing Address
8235 ROCHESTER AVE STE 110 RANCHO CUCAMONGA, CA 91730
Mailing Phone
(949) 866-3392
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-19-2026
Last Update Date
03-19-2026
Code Navigator

A clinical psychologist like Kt Psychology Group Pc assesses, diagnoses, and treats mental, emotional, and behavioral disorders. Clinical psychologists help people deal with problems ranging from short-term personal issues to severe, chronic conditions. Clinical psychologists interview patients, give diagnostic tests, provide psychotherapy and design behavior modification programs to help patients.

Location Map

Secondary Locations

  • 8235 Rochester Ave Ste 110
    Rancho Cucamonga, CA 91730
    (949) 866-3392

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Psychologist Clinical

Taxonomy Code
103TC0700X
Type
Behavioral Health & Social Service Providers
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1103T00000XBehavioral Health & Social Service Providers

Psychologist

 
2103TA0700XBehavioral Health & Social Service Providers

Psychologist
Adult Development & Aging

 
3103TB0200XBehavioral Health & Social Service Providers

Psychologist
Cognitive & Behavioral

 
4103TC2200XBehavioral Health & Social Service Providers

Psychologist
Clinical Child & Adolescent

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

KRYSTIANNA NGUYEN PH. D.

Authorized Official Title
PRESIDENT
Authorized Official Phone
(949) 866-3392

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1093663668, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
3
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
6
Unchanged
Pos 7
3
Doubled → 6
Pos 8
6
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
8
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 6 → 12 → 3 3 → 6 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 8 + 3 + 1 + 2 + 6 + 6 + 6 + 1 + 2 + 24 = 62

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1093663668.

Other Providers at the Same Location


The following 11 providers are registered at the same or a nearby location.

Speech-Language Pathologist
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Clinic/Center (Hearing and Speech)
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Marriage & Family Therapist
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Hospice Care, Community Based
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Hospice Care, Community Based
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Registered Nurse (Psychiatric/Mental Health)
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Marriage & Family Therapist
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Psychologist (Clinical)
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Clinic/Center (Mental Health (Including Community Mental Health Center))
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Psychologist (Clinical)
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868
Case Management
500 N STATE COLLEGE BLVD STE 1100
ORANGE, CA 92868

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1093663668, enumerated as an "organization" on March 19, 2026.

The provider is located at 500 N STATE COLLEGE BLVD STE 1100 ORANGE, CA 92868 and the phone number is (949) 866-3392.

Psychologist with taxonomy code 103TC0700X and a focus in Clinical.