NELS ENST GERHARD OLSSON BA, CADC-R, PSS
NPI 1629927553
Counselor - Addiction (Substance Use Disorder) in Salem, OR

NPI Status: Active since January 23, 2026

Contact Information

3160 CENTER ST NE
SALEM, OR
ZIP 97301
Phone: (503) 585-4949

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  • Individual
  • Male
  • Counselor
  • Addiction (Substance Use Disorder)

About NELS OLSSON

This page provides the complete NPI Profile along with additional information for Nels Olsson, a provider established in Salem, Oregon with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1629927553 assigned on January 2026. The practitioner's primary taxonomy code is 101YA0400X with license number T-25-5682 (OR). The provider is registered as an individual and his NPI record was last updated January 2026.

NPI
1629927553
Provider Name
NELS ENST GERHARD OLSSON BA, CADC-R, PSS
Gender
Male
Entity Type
Individual
Location Address
3160 CENTER ST NE SALEM, OR 97301
Location Phone
(503) 585-4949
Mailing Address
3160 CENTER ST NE SALEM, OR 97301
Mailing Phone
(503) 585-4949
Is Sole Proprietor?
Yes
Enumeration Date
01-23-2026
Last Update Date
01-23-2026
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A Substance Abuse or Addiction Counselor like Nels Olsson advices patients who experience alcoholism, drug addiction, eating disorders, mental health issues, or other mental or behavioral problems. Substance Abuse counselors provide treatment and support to help clients recover from addiction or modify problem behaviors. Many counselors incorporate the principles of 12-step programs, such as Alcoholics Anonymous (AA). They educate clients how to cope with stress and life’s issues in ways that help them recover. Counselors also help patients improve their personal relationships and find ways to discuss their addiction or other problems with family and friends.

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 Addiction (Substance Use Disorder)

Taxonomy Code
101YA0400X
Type
Behavioral Health & Social Service Providers
License No.
T-25-5682
License State
OR

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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 1629927553, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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
6
Unchanged
Pos 3
2
Doubled → 4
Pos 4
9
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
5
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 2 → 4 9 → 18 → 9 7 → 14 → 5 5 → 10 → 1

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 + 8 + 2 + 1 + 4 + 5 + 1 + 0 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1629927553.

Other Providers at the Same Location


The following 15 providers are registered at the same or a nearby location.

Clinic/Center (Public Health, State or Local)
3160 CENTER ST NE
SALEM, OR 97301
Registered Nurse (Community Health)
3160 CENTER ST NE
SALEM, OR 97301
Case Management
3160 CENTER ST NE
SALEM, OR 97301
Clinic/Center (Family Planning, Non-Surgical)
3160 CENTER ST NE
SALEM, OR 97301
Community Health Worker
3160 CENTER ST NE
SALEM, OR 97301
Community Health Worker
3160 CENTER ST NE
SALEM, OR 97301
Community Health Worker
3160 CENTER ST NE
SALEM, OR 97301
Community Health Worker
3160 CENTER ST NE
SALEM, OR 97301
Registered Nurse (Community Health)
3160 CENTER ST NE
SALEM, OR 97301
Case Manager/Care Coordinator
3160 CENTER ST NE
SALEM, OR 97301
Peer Specialist
3160 CENTER ST NE
SALEM, OR 97301
Peer Specialist
3160 CENTER ST NE
SALEM, OR 97301
Registered Nurse (Community Health)
3160 CENTER ST NE
SALEM, OR 97301
Peer Specialist
3160 CENTER ST NE
SALEM, OR 97301
Case Manager/Care Coordinator
3160 CENTER ST NE
SALEM, OR 97301

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629927553, enumerated as an "individual" on January 23, 2026.

The provider is located at 3160 CENTER ST NE SALEM, OR 97301 and the phone number is (503) 585-4949.

Counselor with taxonomy code 101YA0400X and a focus in Addiction (Substance Use Disorder).