W. KALOB LESH DDS PLLC
NPI 1164360400
Dentist in Longview, WA

NPI Status: Active since March 24, 2026

Contact Information

950 14TH AVE
LONGVIEW, WA
ZIP 98632
Phone: (360) 200-4924
Fax: (360) 200-4923

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  • Organization
  • Dentist

About W. KALOB LESH DDS PLLC

This page provides the complete NPI Profile along with additional information for W. Kalob Lesh Dds Pllc, a provider established in Longview, Washington operating as a Dentist. The healthcare provider is registered in the NPI registry with number 1164360400 assigned on March 2026. The practitioner's primary taxonomy code is 122300000X. The provider is registered as an organization and their NPI record was last updated March 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is William Kalob Lesh Dds (Owner/dentist)

NPI
1164360400
Provider Name
W. KALOB LESH DDS PLLC
Entity Type
Organization
Location Address
950 14TH AVE LONGVIEW, WA 98632
Location Phone
(360) 200-4924
Location Fax
(360) 200-4923
Mailing Address
950 14TH AVE LONGVIEW, WA 98632
Mailing Phone
(360) 200-4924
Mailing Fax
(360) 200-4923
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-24-2026
Last Update Date
03-24-2026
Code Navigator

A dentist like W. Kalob Lesh Dds Pllc is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

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

Dentist

Taxonomy Code
122300000X
Type
Dental Providers
Taxonomy Description
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

WILLIAM KALOB LESH DDS

Authorized Official Title
OWNER/DENTIST
Authorized Official Phone
(360) 200-4924

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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 1164360400, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 2 + 4 + 6 + 6 + 0 + 4 + 0 + 24 = 50

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

The next multiple of ten after 50 is 50. The difference is the calculated check digit.

50 - 50 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1164360400.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Dentist (General Practice)
950 14TH AVE
LONGVIEW, WA 98632
Dentist
950 14TH AVE
LONGVIEW, WA 98632
Dentist (General Practice)
950 14TH AVE
LONGVIEW, WA 98632

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164360400, enumerated as an "organization" on March 24, 2026.

The provider is located at 950 14TH AVE LONGVIEW, WA 98632 and the phone number is (360) 200-4924.

Dentist with taxonomy code 122300000X.