DR. KRISTINA RAHBEK LUDWIGSEN PH.D.
NPI 1689728081
Psychologist in Antioch, CA

NPI Status: Active since January 22, 2007

Contact Information

2213 BUCHANAN RD
SUITE 203
ANTIOCH, CA
ZIP 94509
Phone: (925) 779-4930
Fax: (925) 779-4963

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  • Individual
  • Female
  • Psychologist

About KRISTINA LUDWIGSEN

This page provides the complete NPI Profile along with additional information for Kristina Ludwigsen, a provider established in Antioch, California with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1689728081 assigned on January 2007. The practitioner's primary taxonomy code is 103T00000X with license number PSY 9122 (CA). The provider is registered as an individual and her NPI record was last updated 19 years ago.

NPI
1689728081
Provider Name
DR. KRISTINA RAHBEK LUDWIGSEN PH.D.
Gender
Female
Entity Type
Individual
Location Address
2213 BUCHANAN RD SUITE 203 ANTIOCH, CA 94509
Location Phone
(925) 779-4930
Location Fax
(925) 779-4963
Mailing Address
2213 BUCHANAN RD SUITE 203 ANTIOCH, CA 94509
Mailing Phone
(925) 779-4930
Mailing Fax
(925) 779-4963
Is Sole Proprietor?
No
Enumeration Date
01-22-2007
Last Update Date
07-08-2007
Code Navigator

A psychologist like Kristina Ludwigsen studies cognitive, emotional, social processes and behavior by observing, interpreting, and recording how people relate to one another and to their environments. Psychologists gather information and evaluate behavior through controlled laboratory experiments, psychoanalysis, psychotherapy or through personality, performance, aptitude, or intelligence tests, and use this information when testing theories in their research or when treating patients.

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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

Taxonomy Code
103T00000X
Type
Behavioral Health & Social Service Providers
License No.
PSY 9122
License State
CA
Taxonomy Description
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.

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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 1689728081, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
6
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
9
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
0
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
1
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 8 → 16 → 7 7 → 14 → 5 8 → 16 → 7 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 6 + 9 + 1 + 4 + 2 + 1 + 6 + 0 + 1 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1689728081.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Family Medicine
2213 BUCHANAN RD, SUITE 103
ANTIOCH, CA 94509
Social Worker (Clinical)
2213 BUCHANAN RD, 203
ANTIOCH, CA 94509
Social Worker (Clinical)
2213 BUCHANAN RD, SUITE 203
ANTIOCH, CA 94509
Physical Therapist
2213 BUCHANAN RD, SUITE 210
ANTIOCH, CA 94509
Psychologist
2213 BUCHANAN RD, SUITE 203
ANTIOCH, CA 94509
Social Worker (Clinical)
2213 BUCHANAN RD, SUITE 203
ANTIOCH, CA 94509
Psychiatry & Neurology (Psychiatry)
2213 BUCHANAN RD, SUITE 203
ANTIOCH, CA 94509
Clinic/Center
2213 BUCHANAN RD, STE 103
ANTIOCH, CA 94509
Marriage & Family Therapist
2213 BUCHANAN RD
ANTIOCH, CA 94509
Psychologist (Clinical)
2213 BUCHANAN RD, STE. 203
ANTIOCH, CA 94509
Social Worker (Clinical)
2213 BUCHANAN RD, SUITE 203
ANTIOCH, CA 94509
Physical Therapist
2213 BUCHANAN RD, SUITE 210
ANTIOCH, CA 94509
Social Worker
2213 BUCHANAN RD, SUITE 203
ANTIOCH, CA 94509
Psychologist
2213 BUCHANAN RD, 203
ANTIOCH, CA 94509
Social Worker (Clinical)
2213 BUCHANAN RD, SUITE 203
ANTIOCH, CA 94509
Day Training/Habilitation Specialist
2213 BUCHANAN RD
ANTIOCH, CA 94509
Psychiatry & Neurology (Psychiatry)
2213 BUCHANAN RD, KAISER DEPARTMENT OF MENTAL HEALTH SUITE 203
ANTIOCH, CA 94509
Dentist (Orthodontics and Dentofacial Orthopedics)
2213 BUCHANAN RD, STE 112
ANTIOCH, CA 94509

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1689728081, enumerated as an "individual" on January 22, 2007.

The provider is located at 2213 BUCHANAN RD SUITE 203 ANTIOCH, CA 94509 and the phone number is (925) 779-4930.

Psychologist with taxonomy code 103T00000X.