MR. DENNIS DAVID HERLING II LMHCA
NPI 1568321008
Counselor - Mental Health in Vancouver, WA

NPI Status: Active since January 20, 2026

Contact Information

816 NE 87TH AVE
VANCOUVER, WA
ZIP 98664
Phone: (360) 558-5727

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  • Individual
  • Male
  • Counselor
  • Mental Health

About DENNIS HERLING

This page provides the complete NPI Profile along with additional information for Dennis Herling, a provider established in Vancouver, Washington with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1568321008 assigned on January 2026. The practitioner's primary taxonomy code is 101YM0800X with license number MC61499539 (WA). The provider is registered as an individual and his NPI record was last updated January 2026.

NPI
1568321008
Provider Name
MR. DENNIS DAVID HERLING II LMHCA
Gender
Male
Entity Type
Individual
Location Address
816 NE 87TH AVE VANCOUVER, WA 98664
Location Phone
(360) 558-5727
Mailing Address
PO BOX 34703 SEATTLE, WA 98124
Mailing Phone
(206) 764-0502
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
01-20-2026
Last Update Date
01-20-2026
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A mental health counselor like Dennis Herling 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
License No.
MC61499539
License State
WA

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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 1568321008, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 2 + 8 + 6 + 2 + 2 + 0 + 0 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1568321008.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Clinic/Center (Federally Qualified Health Center (FQHC))
816 NE 87TH AVE
VANCOUVER, WA 98664
Social Worker
816 NE 87TH AVE
VANCOUVER, WA 98664
Counselor
816 NE 87TH AVE
VANCOUVER, WA 98664
Counselor (Mental Health)
816 NE 87TH AVE
VANCOUVER, WA 98664

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1568321008, enumerated as an "individual" on January 20, 2026.

The provider is located at 816 NE 87TH AVE VANCOUVER, WA 98664 and the phone number is (360) 558-5727.

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