STEPHANIE ANN DUER ED.D, LPC-S
NPI 1124965124
Counselor - Mental Health in Huntsville, TX

NPI Status: Active since April 29, 2026

Contact Information

3328 PINE GROVE DR
HUNTSVILLE, TX
ZIP 77340
Phone: (936) 662-4556

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  • Individual
  • Female
  • Counselor
  • Mental Health

About STEPHANIE DUER

This page provides the complete NPI Profile along with additional information for Stephanie Duer, a provider established in Huntsville, Texas with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1124965124 assigned on April 2026. The practitioner's primary taxonomy code is 101YM0800X with license number 63967 (TX). The provider is registered as an individual and her NPI record was last updated April 2026.

NPI
1124965124
Provider Name
STEPHANIE ANN DUER ED.D, LPC-S
Gender
Female
Entity Type
Individual
Location Address
3328 PINE GROVE DR HUNTSVILLE, TX 77340
Location Phone
(936) 662-4556
Mailing Address
3328 PINE GROVE DR HUNTSVILLE, TX 77340
Mailing Phone
(936) 662-4556
Is Sole Proprietor?
Yes
Enumeration Date
04-29-2026
Last Update Date
04-29-2026
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A mental health counselor like Stephanie Duer provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
63967
License State
TX

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)
1101Y00000XBehavioral Health & Social Service Providers

Counselor

63967 (TX)
2101YP2500XBehavioral Health & Social Service Providers

Counselor
Professional

63967 (TX)

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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 1124965124, 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
1
Unchanged
Pos 3
2
Doubled → 4
Pos 4
4
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
6
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
1
Unchanged
Pos 9
2
Doubled → 4
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 2 → 4 9 → 18 → 9 5 → 10 → 1 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 4 + 4 + 1 + 8 + 6 + 1 + 0 + 1 + 4 + 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 1124965124.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1124965124, enumerated as an "individual" on April 29, 2026.

The provider is located at 3328 PINE GROVE DR HUNTSVILLE, TX 77340 and the phone number is (936) 662-4556.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.