MS. STEPHANIE JOHNSON
NPI 1730369950
Counselor - Professional in Sacramento, CA

NPI Status: Active since November 05, 2007

Contact Information

9343 TECH CENTER DR STE 110
SACRAMENTO, CA
ZIP 95826
Phone: (408) 465-8280

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Counselor
Professional

About STEPHANIE JOHNSON

This page provides the complete NPI Profile along with additional information for Stephanie Johnson, a provider established in Sacramento, California with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1730369950 assigned on November 2007. The practitioner's primary taxonomy code is 101YP2500X with license number APCC14360 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI: 1730369950
Provider Name: MS. STEPHANIE JOHNSON
Gender: Female
Entity Type: Individual
Location Address: 9343 TECH CENTER DR STE 110 SACRAMENTO, CA 95826
Location Phone: (408) 465-8280
Mailing Address: 8912 VOLUNTEER LN SACRAMENTO, CA 95826
Mailing Phone: (916) 344-0199
Is Sole Proprietor?: No
Enumeration Date: 11-05-2007
Last Update Date: 05-08-2025
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Location Map

Secondary Locations

4604A Roosevelt Ave
Sacramento, CA 95820
(408) 465-8280

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: Counselor Professional
Taxonomy Code: 101YP2500X
Type: Behavioral Health & Social Service Providers
License No.: APCC14360
License State: CA

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)
1	101YM0800X	Behavioral Health & Social Service Providers	Counselor Mental Health
2	171M00000X	Other Service Providers	Case Manager/Care Coordinator

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 1730369950, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 6

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

Check

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 3 → 6 3 → 6 9 → 18 → 9 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 6 + 0 + 6 + 6 + 1 + 8 + 9 + 1 + 0 + 24 = 70

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

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

70 - 70 = 0

This NPI is valid

The calculated check digit is 0, which matches the last digit of 1730369950.