MS. HELEN M. JOHNSTON
NPI 1114252871
Counselor - Mental Health in Corona, CA

NPI Status: Active since October 13, 2009

Contact Information

629 N MAIN ST
SUITE C-3
CORONA, CA
ZIP 92880
Phone: (951) 738-2400
Fax: (951) 340-3566

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  • Individual
  • Female
  • Counselor
  • Mental Health

About HELEN JOHNSTON

This page provides the complete NPI Profile along with additional information for Helen Johnston, a provider established in Corona, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1114252871 assigned on October 2009. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and her NPI record was last updated 17 years ago.

NPI
1114252871
Provider Name
MS. HELEN M. JOHNSTON
Gender
Female
Entity Type
Individual
Location Address
629 N MAIN ST SUITE C-3 CORONA, CA 92880
Location Phone
(951) 738-2400
Location Fax
(951) 340-3566
Mailing Address
629 N MAIN ST SUITE C-3 CORONA, CA 92880
Mailing Phone
(951) 738-2400
Mailing Fax
(951) 340-3566
Is Sole Proprietor?
Yes
Enumeration Date
10-13-2009
Last Update Date
10-13-2009
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A mental health counselor like Helen Johnston provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers

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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 1114252871, 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
1
Unchanged
Pos 3
1
Doubled → 2
Pos 4
4
Unchanged
Pos 5
2
Doubled → 4
Pos 6
5
Unchanged
Pos 7
2
Doubled → 4
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
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 1 → 2 2 → 4 2 → 4 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 2 + 4 + 4 + 5 + 4 + 8 + 1 + 4 + 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 1114252871.

Other Providers at the Same Location


The following 9 providers are registered at the same or a nearby location.

Marriage & Family Therapist
629 N MAIN ST
CORONA, CA 92880
Licensed Vocational Nurse
629 N MAIN ST
CORONA, CA 92880
Marriage & Family Therapist
629 N MAIN ST
CORONA, CA 92880
Case Management
629 N MAIN ST, STE. C - 3
CORONA, CA 92880
Licensed Vocational Nurse
629 N MAIN ST, SUITE C-3
CORONA, CA 92880
Case Manager/Care Coordinator
629 N MAIN ST, SUITE C-3
CORONA, CA 92880
Marriage & Family Therapist
629 N MAIN ST, SUITE C-3
CORONA, CA 92880
Marriage & Family Therapist
629 N MAIN ST, SUITE C-3
CORONA, CA 92880
Licensed Vocational Nurse
629 N MAIN ST, STE C-3
CORONA, CA 92880

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1114252871, enumerated as an "individual" on October 13, 2009.

The provider is located at 629 N MAIN ST SUITE C-3 CORONA, CA 92880 and the phone number is (951) 738-2400.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.