MARK SHIMKUS
NPI 1326973413
Social Worker in Fairbanks, AK

NPI Status: Active since June 17, 2026

Contact Information

1300 MOORE ST
FAIRBANKS, AK
ZIP 99701
Phone: (907) 563-1000

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  • Individual
  • Male
  • Social Worker

About MARK SHIMKUS

This page provides the complete NPI Profile along with additional information for Mark Shimkus, a provider established in Fairbanks, Alaska with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1326973413 assigned on June 2026. The practitioner's primary taxonomy code is 104100000X. The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1326973413
Provider Name
MARK SHIMKUS
Gender
Male
Entity Type
Individual
Location Address
1300 MOORE ST FAIRBANKS, AK 99701
Location Phone
(907) 563-1000
Mailing Address
1041 PEDRO ST FAIRBANKS, AK 99701
Mailing Phone
(270) 901-9824
Is Sole Proprietor?
No
Enumeration Date
06-17-2026
Last Update Date
06-17-2026
Code Navigator

A social worker like Mark Shimkus 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.

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

Social Worker

Taxonomy Code
104100000X
Type
Behavioral Health & Social Service Providers
License State
AK
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)
11041C0700XBehavioral Health & Social Service Providers

Social Worker
Clinical

(AK)

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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 1326973413, 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
3
Unchanged
Pos 3
2
Doubled → 4
Pos 4
6
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
7
Unchanged
Pos 7
3
Doubled → 6
Pos 8
4
Unchanged
Pos 9
1
Doubled → 2
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 3 → 6 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 4 + 6 + 1 + 8 + 7 + 6 + 4 + 2 + 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 1326973413.

Other Providers at the Same Location


The following 17 providers are registered at the same or a nearby location.

Technician, Other
1300 MOORE ST
FAIRBANKS, AK 99701
Technician, Other
1300 MOORE ST
FAIRBANKS, AK 99701
Technician, Other
1300 MOORE ST
FAIRBANKS, AK 99701
Technician, Other
1300 MOORE ST
FAIRBANKS, AK 99701
Technician, Other
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community Health Worker
1300 MOORE ST
FAIRBANKS, AK 99701
Community/Behavioral Health
1300 MOORE ST
FAIRBANKS, AK 99701
Counselor
1300 MOORE ST
FAIRBANKS, AK 99701
Clinical Nurse Specialist (Psychiatric/Mental Health)
1300 MOORE ST
FAIRBANKS, AK 99701

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1326973413, enumerated as an "individual" on June 17, 2026.

The provider is located at 1300 MOORE ST FAIRBANKS, AK 99701 and the phone number is (907) 563-1000.

Social Worker with taxonomy code 104100000X.