MARKIE NICOLE ARMSTRONG
NPI 1336034792
Social Worker in Portland, OR

NPI Status: Active since June 09, 2025

Contact Information

4110 NE 122ND AVE STE 115
PORTLAND, OR
ZIP 97230
Phone: (503) 490-0405

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  • Individual
  • Female
  • Social Worker

About MARKIE ARMSTRONG

This page provides the complete NPI Profile along with additional information for Markie Armstrong, a provider established in Portland, Oregon with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1336034792 assigned on June 2025. The practitioner's primary taxonomy code is 104100000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1336034792
Provider Name
MARKIE NICOLE ARMSTRONG
Gender
Female
Entity Type
Individual
Location Address
4110 NE 122ND AVE STE 115 PORTLAND, OR 97230
Location Phone
(503) 490-0405
Mailing Address
6858 N SENECA ST PORTLAND, OR 97203
Mailing Phone
(503) 490-0405
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
06-09-2025
Last Update Date
06-09-2025
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A social worker like Markie Armstrong helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.

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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

Social Worker

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
Taxonomy Description
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

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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 1336034792, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
4
Doubled → 8
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
2
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 3 → 6 0 → 0 4 → 8 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 0 + 3 + 8 + 7 + 1 + 8 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1336034792.

Other Providers at the Same Location


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

Social Worker (Clinical)
4110 NE 122ND AVE STE 115
PORTLAND, OR 97230
Social Worker (Clinical)
4110 NE 122ND AVE STE 115
PORTLAND, OR 97230
Counselor
4110 NE 122ND AVE STE 115
PORTLAND, OR 97230
Social Worker
4110 NE 122ND AVE STE 115
PORTLAND, OR 97230

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336034792, enumerated as an "individual" on June 09, 2025.

The provider is located at 4110 NE 122ND AVE STE 115 PORTLAND, OR 97230 and the phone number is (503) 490-0405.

Social Worker with taxonomy code 104100000X.