MRS. CRYSTAL RENEE JONES
NPI 1225980899
Psychologist - School in Elk Grove, CA

NPI Status: Active since February 13, 2026

Contact Information

9510 ELK GROVE FLORIN RD
ELK GROVE, CA
ZIP 95624
Phone: (916) 686-5085

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  • Individual
  • Female
  • Psychologist
  • School

About CRYSTAL JONES

This page provides the complete NPI Profile along with additional information for Crystal Jones, a provider established in Elk Grove, California with a medical specialization in Psychologist, focusing in school . The healthcare provider is registered in the NPI registry with number 1225980899 assigned on February 2026. The practitioner's primary taxonomy code is 103TS0200X with license number 3579 (CA). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI
1225980899
Provider Name
MRS. CRYSTAL RENEE JONES
Gender
Female
Entity Type
Individual
Location Address
9510 ELK GROVE FLORIN RD ELK GROVE, CA 95624
Location Phone
(916) 686-5085
Mailing Address
9596 LAKEPOINT DR ELK GROVE, CA 95758
Mailing Phone
(916) 683-7680
Is Sole Proprietor?
Yes
Enumeration Date
02-13-2026
Last Update Date
02-13-2026
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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 School

Taxonomy Code
103TS0200X
Type
Behavioral Health & Social Service Providers
License No.
3579
License State
CA
Taxonomy Description
A psychologist whose specialty is concerned with the science and practice of psychology with children, youth, families; learners of all ages; and the schooling process. The basic education and training of school psychologists prepares them to provide a range of psychological diagnosis, assessment, intervention, prevention, health promotion, and program development and evaluation services with a special focus on the developmental processes of children and youth within the context of schools, families and other systems. School psychologists are prepared to intervene at the individual and system level, and develop, implement, and evaluate preventive programs. In these efforts, they conduct ecologically valid assessments and intervene to promote positive learning environments within which children and youth from diverse backgrounds to ensure that all have equal access to effective educational and psychological services that promote healthy development

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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 1225980899, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 4 + 5 + 1 + 8 + 8 + 0 + 8 + 1 + 8 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1225980899.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Psychologist (School)
9510 ELK GROVE FLORIN RD
ELK GROVE, CA 95624
Marriage & Family Therapist
9510 ELK GROVE FLORIN RD
ELK GROVE, CA 95624
Local Education Agency (LEA)
9510 ELK GROVE FLORIN RD
ELK GROVE, CA 95624
Social Worker (School)
9510 ELK GROVE FLORIN RD
ELK GROVE, CA 95624
Social Worker (School)
9510 ELK GROVE FLORIN RD
ELK GROVE, CA 95624

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1225980899, enumerated as an "individual" on February 13, 2026.

The provider is located at 9510 ELK GROVE FLORIN RD ELK GROVE, CA 95624 and the phone number is (916) 686-5085.

Psychologist with taxonomy code 103TS0200X and a focus in School.