JOHN ROBERT WALLIS L.P.C.
NPI 1851545396
Counselor - Mental Health in Wasilla, AK

NPI Status: Active since November 11, 2008

Contact Information

3901 E BOGARD RD
WASILLA, AK
ZIP 99654
Phone: (907) 376-0459
Fax: (907) 376-0493

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  • Individual
  • Male
  • Counselor
  • Mental Health

About JOHN WALLIS

This page provides the complete NPI Profile along with additional information for John Wallis, a provider established in Wasilla, Alaska with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1851545396 assigned on November 2008. The practitioner's primary taxonomy code is 101YM0800X with license number AA450 (AK). The provider is registered as an individual and his NPI record was last updated 18 years ago.

NPI
1851545396
Provider Name
JOHN ROBERT WALLIS L.P.C.
Gender
Male
Entity Type
Individual
Location Address
3901 E BOGARD RD WASILLA, AK 99654
Location Phone
(907) 376-0459
Location Fax
(907) 376-0493
Mailing Address
1825 S CHUGACH ST PALMER, AK 99645
Mailing Phone
(907) 746-4080
Mailing Fax
(907) 376-0493
Is Sole Proprietor?
No
Enumeration Date
11-11-2008
Last Update Date
11-11-2008
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A mental health counselor like John Wallis 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.
AA450
License State
AK

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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 1851545396, 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 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
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
4
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
3
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
6
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 5 → 10 → 1 5 → 10 → 1 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 1 + 0 + 4 + 1 + 0 + 3 + 1 + 8 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1851545396.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851545396, enumerated as an "individual" on November 11, 2008.

The provider is located at 3901 E BOGARD RD WASILLA, AK 99654 and the phone number is (907) 376-0459.

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