KAREN JOHNSON
NPI 1225916455
Counselor - Mental Health in Paoli, PA

NPI Status: Active since August 25, 2025

Contact Information

30 S VALLEY RD
PAOLI, PA
ZIP 19301
Phone: (484) 615-3155

Get Directions Write a Review

  • Individual
  • Female
  • Counselor
  • Mental Health

About KAREN JOHNSON

This page provides the complete NPI Profile along with additional information for Karen Johnson, a provider established in Paoli, Pennsylvania with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1225916455 assigned on August 2025. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1225916455
Provider Name
KAREN JOHNSON
Gender
Female
Entity Type
Individual
Location Address
30 S VALLEY RD PAOLI, PA 19301
Location Phone
(484) 615-3155
Mailing Address
400 GYPSY LN KING OF PRUSSIA, PA 19406
Mailing Phone
(717) 304-5411
Is Sole Proprietor?
No
Enumeration Date
08-25-2025
Last Update Date
08-25-2025
Code Navigator

A mental health counselor like Karen Johnson 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.

Location Map

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

Reviews for KAREN JOHNSON

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1225916455, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
1
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
4
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
5
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 6 → 12 → 3 5 → 10 → 1

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 + 1 + 1 + 2 + 4 + 1 + 0 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1225916455.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Physical Medicine & Rehabilitation
30 S VALLEY RD, STE 102
PAOLI, PA 19301
Audiologist
30 S VALLEY RD, SUITE 208
PAOLI, PA 19301
Psychologist (Clinical)
30 S VALLEY RD, SUITE 201
PAOLI, PA 19301
Family Medicine (Adult Medicine)
30 S VALLEY RD, SUITE 205
PAOLI, PA 19301
Specialist
30 S VALLEY RD, SUITE 102
PAOLI, PA 19301
Internal Medicine
30 S VALLEY RD, SUITE 280
PAOLI, PA 19301
Social Worker (Clinical)
30 S VALLEY RD, 211
PAOLI, PA 19301
Counselor (Professional)
30 S VALLEY RD
PAOLI, PA 19301
Social Worker (Clinical)
30 S VALLEY RD, 211
PAOLI, PA 19301
Clinical Neuropsychologist
30 S VALLEY RD, SUITE 207
PAOLI, PA 19301
Community/Behavioral Health
30 S VALLEY RD
PAOLI, PA 19301
Case Management
30 S VALLEY RD, SUITE 300
PAOLI, PA 19301
Counselor (Professional)
30 S VALLEY RD
PAOLI, PA 19301
Psychologist (Clinical)
30 S VALLEY RD, SUITE 101
PAOLI, PA 19301
Social Worker
30 S VALLEY RD
PAOLI, PA 19301
Counselor (Mental Health)
30 S VALLEY RD
PAOLI, PA 19301
Adult Companion
30 S VALLEY RD
PAOLI, PA 19301
Counselor (Mental Health)
30 S VALLEY RD
PAOLI, PA 19301
Audiologist
30 S VALLEY RD, SUITE 208
PAOLI, PA 19301

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1225916455, enumerated as an "individual" on August 25, 2025.

The provider is located at 30 S VALLEY RD PAOLI, PA 19301 and the phone number is (484) 615-3155.

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