EVAN LAWRENCE HALL ASW
NPI 1629596606
Counselor in Escondido, CA

NPI Status: Active since August 30, 2017

Contact Information

474 W VERMONT AVE STE 104
ESCONDIDO, CA
ZIP 92025
Phone: (760) 432-9884

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

Individual
Male
Counselor

About EVAN HALL

This page provides the complete NPI Profile along with additional information for Evan Hall, a provider established in Escondido, California with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1629596606 assigned on August 2017. The practitioner's primary taxonomy code is 101Y00000X with license number 85148 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI: 1629596606
Provider Name: EVAN LAWRENCE HALL ASW
Gender: Male
Entity Type: Individual
Location Address: 474 W VERMONT AVE STE 104 ESCONDIDO, CA 92025
Location Phone: (760) 432-9884
Mailing Address: 474 W VERMONT AVE STE 104 ESCONDIDO, CA 92025
Mailing Phone: (760) 432-9884
Is Sole Proprietor?: No
Enumeration Date: 08-30-2017
Last Update Date: 07-21-2022
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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
Taxonomy Code: 101Y00000X
Type: Behavioral Health & Social Service Providers
License No.: 85148
License State: CA
Taxonomy Description: A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

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	1041C0700X	Behavioral Health & Social Service Providers	Social Worker Clinical	85148 (CA)
2	390200000X	Student, Health Care	Student in an Organized Health Care Education/Training Program

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 1629596606, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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 → 4

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 12 → 1 + 2

Pos 8

Unchanged

Pos 9

Doubled → 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 2 → 4 5 → 10 → 1 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 1 + 0 + 9 + 1 + 2 + 6 + 0 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1629596606.