DREW MARR, PLLC
NPI 1316898687
Social Worker in Fort Smith, AR
NPI Status: Active since February 04, 2026
Contact Information
5111 ROGERS AVE STE 640
FORT SMITH, AR
ZIP 72903
Phone: (479) 222-0268
- Organization
- Social Worker
About DREW MARR, PLLC
This page provides the complete NPI Profile along with additional information for Drew Marr, Pllc, a provider established in Fort Smith, Arkansas operating as a Social Worker. The healthcare provider is registered in the NPI registry with number 1316898687 assigned on February 2026. The practitioner's primary taxonomy code is 104100000X. The provider is registered as an organization and their NPI record was last updated February 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Drew Alan Marr Lmsw (Clinician)
- NPI
- 1316898687
- Provider Name
- DREW MARR, PLLC
- Entity Type
- Organization
- Location Address
- 5111 ROGERS AVE STE 640 FORT SMITH, AR 72903
- Location Phone
- (479) 222-0268
- Mailing Address
- 3709 MORRIS DR FORT SMITH, AR 72904
- Mailing Phone
- (479) 420-5401
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 02-04-2026
- Last Update Date
- 02-04-2026
- Code Navigator
A social worker like Drew Marr, Pllc 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
- 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.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
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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 1316898687, we treat the final digit (7) 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 7).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 73 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1316898687, enumerated as an "organization" on February 04, 2026.
The provider is located at 5111 ROGERS AVE STE 640 FORT SMITH, AR 72903 and the phone number is (479) 222-0268.
Social Worker with taxonomy code 104100000X.
