DR. LISSA JOY GEIKEN PH.D.
NPI 1609181601
Psychologist - Counseling in Davis, CA

NPI Status: Active since August 13, 2010

Contact Information

1 SHIELDS AVE
CAPS 219 NORTH HALL
DAVIS, CA
ZIP 95616
Phone: (530) 752-9923
Fax: (530) 752-9923

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  • Individual
  • Female
  • Psychologist
  • Counseling

About LISSA GEIKEN

This page provides the complete NPI Profile along with additional information for Lissa Geiken, a provider established in Davis, California with a medical specialization in Psychologist, focusing in counseling . The healthcare provider is registered in the NPI registry with number 1609181601 assigned on August 2010. The practitioner's primary taxonomy code is 103TC1900X with license number 24551 (CA). The provider is registered as an individual and her NPI record was last updated 15 years ago.

NPI
1609181601
Provider Name
DR. LISSA JOY GEIKEN PH.D.
Gender
Female
Entity Type
Individual
Location Address
1 SHIELDS AVE CAPS 219 NORTH HALL DAVIS, CA 95616
Location Phone
(530) 752-9923
Location Fax
(530) 752-9923
Mailing Address
739 DINGLE LN WOODLAND, CA 95695
Mailing Phone
(541) 335-1095
Is Sole Proprietor?
Yes
Enumeration Date
08-13-2010
Last Update Date
09-22-2011
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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 Counseling

Taxonomy Code
103TC1900X
Type
Behavioral Health & Social Service Providers
License No.
24551
License State
CA
Taxonomy Description
A psychologist who specializes in general practice and health service. It focuses on how people function both personally and in their relationships at all ages. Counseling psychology addresses the emotional, social, work, school and physical health concerns people may have at different stages in their lives, focusing on typical life stresses and more severe issues with which people may struggle as individuals and as a part of families, groups and organizations. Counseling psychologists help people with physical, emotional and mental health issues improve their sense of well-being, alleviate feelings of distress and resolve crises. They also provide assessment, diagnosis, and treatment of more severe psychological symptoms.

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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 1609181601, 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 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
0
Doubled → 0
Pos 4
9
Unchanged
Pos 5
1
Doubled → 2
Pos 6
8
Unchanged
Pos 7
1
Doubled → 2
Pos 8
6
Unchanged
Pos 9
0
Doubled → 0
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 0 → 0 1 → 2 1 → 2 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 0 + 9 + 2 + 8 + 2 + 6 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1609181601.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Specialist/Technologist, Pathology (Laboratory Management)
1 SHIELDS AVE, UNIVERSITY OF CALIFORNIA DAVIS
DAVIS, CA 95616
Specialist/Technologist (Athletic Trainer)
1 SHIELDS AVE, UNIVERSITY OF CALIFORNIA, DAVIS
DAVIS, CA 95616
Specialist/Technologist (Athletic Trainer)
1 SHIELDS AVE, ATHLETIC DEPT. UNIVERSITY OF CALIFORNIA
DAVIS, CA 95616
Nurse Practitioner
1 SHIELDS AVE
DAVIS, CA 95616
Family Medicine
1 SHIELDS AVE
DAVIS, CA 95616
Family Medicine
1 SHIELDS AVE
DAVIS, CA 95616
Family Medicine
1 SHIELDS AVE
DAVIS, CA 95616
Family Medicine (Adult Medicine)
1 SHIELDS AVE
DAVIS, CA 95616
Specialist
1 SHIELDS AVE
DAVIS, CA 95616
Internal Medicine (Adolescent Medicine)
1 SHIELDS AVE, COWELL HEALTH CENTER
DAVIS, CA 95616
Internal Medicine
1 SHIELDS AVE, UNIVERSITY OF CALIFORNIA, DAVIS
DAVIS, CA 95616
Psychiatry & Neurology (Neurology)
1 SHIELDS AVE
DAVIS, CA 95616
Psychiatry & Neurology (Psychiatry)
1 SHIELDS AVE
DAVIS, CA 95616
Physical Therapist
1 SHIELDS AVE, COWELL STUDENT HEALTH CENTER
DAVIS, CA 95616
Physical Therapist
1 SHIELDS AVE
DAVIS, CA 95616
Physical Therapist
1 SHIELDS AVE, COWELL STUDENT HEALTH CENTER
DAVIS, CA 95616
Psychologist
1 SHIELDS AVE, UNIVERSITY OF CALIFORNIA, DAVIS (CAPS)
DAVIS, CA 95616
Psychologist (Counseling)
1 SHIELDS AVE, CAPS, 219 NORTH HALL, UNIVERSITY OF CALIFORNIA, DAVIS
DAVIS, CA 95616
Psychologist (Clinical)
1 SHIELDS AVE, CAPS
DAVIS, CA 95616
Psychologist
1 SHIELDS AVE, CAPS, UC DAVIS
DAVIS, CA 95616

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1609181601, enumerated as an "individual" on August 13, 2010.

The provider is located at 1 SHIELDS AVE CAPS 219 NORTH HALL DAVIS, CA 95616 and the phone number is (530) 752-9923.

Psychologist with taxonomy code 103TC1900X and a focus in Counseling.