KARL WESTON MAUST LMSW
NPI 1891670576
Social Worker - Clinical in Grantsville, MD

NPI Status: Active since August 11, 2025

Contact Information

1720 CHESTNUT RIDGE RD
GRANTSVILLE, MD
ZIP 21536
Phone: (301) 450-7274
Fax: (301) 238-8044

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  • Individual
  • Male
  • Social Worker
  • Clinical

About KARL MAUST

This page provides the complete NPI Profile along with additional information for Karl Maust, a provider established in Grantsville, Maryland with a medical specialization in Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1891670576 assigned on August 2025. The practitioner's primary taxonomy code is 1041C0700X with license number 33640 (MD). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1891670576
Provider Name
KARL WESTON MAUST LMSW
Gender
Male
Entity Type
Individual
Location Address
1720 CHESTNUT RIDGE RD GRANTSVILLE, MD 21536
Location Phone
(301) 450-7274
Location Fax
(301) 238-8044
Mailing Address
1720 CHESTNUT RIDGE RD GRANTSVILLE, MD 21536
Mailing Phone
(301) 450-7274
Mailing Fax
(301) 238-8044
Is Sole Proprietor?
No
Enumeration Date
08-11-2025
Last Update Date
10-09-2025
Code Navigator

A clinical social worker like Karl Maust is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.

Location Map

Secondary Locations

  • 12502 Willowbrook Rd
    Cumberland, MD 21502
    (240) 964-8585

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 Clinical

Taxonomy Code
1041C0700X
Type
Behavioral Health & Social Service Providers
License No.
33640
License State
MD
Taxonomy Description
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

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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 1891670576, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
5
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 9 → 18 → 9 6 → 12 → 3 0 → 0 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 1 + 2 + 7 + 0 + 5 + 1 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1891670576.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Counselor (Mental Health)
1720 CHESTNUT RIDGE RD
GRANTSVILLE, MD 21536
Counselor (Mental Health)
1720 CHESTNUT RIDGE RD
GRANTSVILLE, MD 21536
Counselor (Mental Health)
1720 CHESTNUT RIDGE RD
GRANTSVILLE, MD 21536

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891670576, enumerated as an "individual" on August 11, 2025.

The provider is located at 1720 CHESTNUT RIDGE RD GRANTSVILLE, MD 21536 and the phone number is (301) 450-7274.

Social Worker with taxonomy code 1041C0700X and a focus in Clinical.