SOPHIA CONSTANTINE KARAGIANNIS
NPI 1861161663
Counselor - Mental Health in Apple Valley, CA

NPI Status: Active since September 07, 2021

Contact Information

10755 APPLE VALLEY RD
APPLE VALLEY, CA
ZIP 92308
Phone: (760) 247-9840

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  • Individual
  • Female
  • Counselor
  • Mental Health

About SOPHIA KARAGIANNIS

This page provides the complete NPI Profile along with additional information for Sophia Karagiannis, a provider established in Apple Valley, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1861161663 assigned on September 2021. The practitioner's primary taxonomy code is 101YM0800X with license number APCC21391 (CA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1861161663
Provider Name
SOPHIA CONSTANTINE KARAGIANNIS
Gender
Female
Entity Type
Individual
Location Address
10755 APPLE VALLEY RD APPLE VALLEY, CA 92308
Location Phone
(760) 247-9840
Mailing Address
10755 APPLE VALLEY RD APPLE VALLEY, CA 92308
Mailing Phone
(760) 247-9840
Is Sole Proprietor?
Yes
Enumeration Date
09-07-2021
Last Update Date
03-30-2026
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A mental health counselor like Sophia Karagiannis 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
License No.
APCC21391
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)
1101YP2500XBehavioral Health & Social Service Providers

Counselor
Professional

APCC21391 (CA)

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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 1861161663, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 2 + 1 + 2 + 6 + 2 + 6 + 1 + 2 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1861161663.

Other Providers at the Same Location


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

Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Residential Treatment Facility, Emotionally Disturbed Children
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Case Manager/Care Coordinator
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Counselor
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Residential Treatment Facility, Emotionally Disturbed Children
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Counselor (Mental Health)
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Case Manager/Care Coordinator
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Case Manager/Care Coordinator
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Counselor (Mental Health)
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Community Health Worker
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Marriage & Family Therapist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308
Day Training/Habilitation Specialist
10755 APPLE VALLEY RD
APPLE VALLEY, CA 92308

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861161663, enumerated as an "individual" on September 07, 2021.

The provider is located at 10755 APPLE VALLEY RD APPLE VALLEY, CA 92308 and the phone number is (760) 247-9840.

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