ROBERT WAYNE ARMSTRONG LMSW
NPI 1215882014
Social Worker in Nevada, MO

NPI Status: Active since February 27, 2026

Contact Information

320 MAC BLVD
NEVADA, MO
ZIP 64772
Phone: (844) 853-8937

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  • Individual
  • Male
  • Social Worker

About ROBERT ARMSTRONG

This page provides the complete NPI Profile along with additional information for Robert Armstrong, a provider established in Nevada, Missouri with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1215882014 assigned on February 2026. The practitioner's primary taxonomy code is 104100000X with license number 2025027304 (MO). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI
1215882014
Provider Name
ROBERT WAYNE ARMSTRONG LMSW
Gender
Male
Entity Type
Individual
Location Address
320 MAC BLVD NEVADA, MO 64772
Location Phone
(844) 853-8937
Mailing Address
1800 COMMUNITY CLINTON, MO 64735
Mailing Phone
(660) 885-8131
Is Sole Proprietor?
No
Enumeration Date
02-27-2026
Last Update Date
02-27-2026
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A social worker like Robert 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
License No.
2025027304
License State
MO
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1104100000XBehavioral Health & Social Service Providers

Social Worker

LMSW13755 (KS)

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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 1215882014, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
2
Unchanged
Pos 3
1
Doubled → 2
Pos 4
5
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
2
Doubled → 4
Pos 8
0
Unchanged
Pos 9
1
Doubled → 2
Check
4
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 1 → 2 8 → 16 → 7 2 → 4 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 2 + 5 + 1 + 6 + 8 + 4 + 0 + 2 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1215882014.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Registered Nurse (Psychiatric/Mental Health)
320 MAC BLVD
NEVADA, MO 64772
Clinic/Center (Federally Qualified Health Center (FQHC))
320 MAC BLVD
NEVADA, MO 64772
Psychiatry & Neurology (Psychiatry)
320 MAC BLVD
NEVADA, MO 64772
Licensed Practical Nurse
320 MAC BLVD
NEVADA, MO 64772
Psychologist (Clinical)
320 MAC BLVD
NEVADA, MO 64772
Psychologist (Clinical)
320 MAC BLVD
NEVADA, MO 64772
Counselor (Mental Health)
320 MAC BLVD
NEVADA, MO 64772
Social Worker (Clinical)
320 MAC BLVD
NEVADA, MO 64772
Social Worker
320 MAC BLVD
NEVADA, MO 64772
Counselor (Professional)
320 MAC BLVD
NEVADA, MO 64772
Clinic/Center (Rehabilitation, Substance Use Disorder)
320 MAC BLVD
NEVADA, MO 64772
Psychologist (Clinical)
320 MAC BLVD
NEVADA, MO 64772
Social Worker (Clinical)
320 MAC BLVD
NEVADA, MO 64772
Counselor (Professional)
320 MAC BLVD
NEVADA, MO 64772

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215882014, enumerated as an "individual" on February 27, 2026.

The provider is located at 320 MAC BLVD NEVADA, MO 64772 and the phone number is (844) 853-8937.

Social Worker with taxonomy code 104100000X.