MR. BRIAN KEITH ALTENBACH LCMHC
NPI 1356515902
Counselor - Mental Health in Concord, NH
NPI Status: Active since April 15, 2008
Contact Information
5 CHENELL DR STE 110
CONCORD, NH
ZIP 03301
Phone: (603) 883-0005
Fax: (603) 883-0007
- Individual
- Male
- Counselor
- Mental Health
About BRIAN ALTENBACH
This page provides the complete NPI Profile along with additional information for Brian Altenbach, a provider established in Concord, New Hampshire with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1356515902 assigned on April 2008. The practitioner's primary taxonomy code is 101YM0800X with license number 5658 (NH). The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1356515902
- Provider Name
- MR. BRIAN KEITH ALTENBACH LCMHC
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 5 CHENELL DR STE 110 CONCORD, NH 03301
- Location Phone
- (603) 883-0005
- Location Fax
- (603) 883-0007
- Mailing Address
- PO BOX 675125 DETROIT, MI 48267
- Mailing Phone
- (603) 883-0005
- Mailing Fax
- (603) 883-0007
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-15-2008
- Last Update Date
- 03-11-2026
- Code Navigator
A mental health counselor like Brian Altenbach 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
Secondary Locations
- 804 W Broad St
Bethlehem, PA 18018
(610) 419-9415
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.
- 5658
- License State
- NH
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) |
|---|---|---|---|---|
| 1 | 101YP2500X | Behavioral Health & Social Service Providers | Counselor | PC003926 (PA) |
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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 1356515902, we treat the final digit (2) 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 2).
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 48 is 50. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1356515902, enumerated as an "individual" on April 15, 2008.
The provider is located at 5 CHENELL DR STE 110 CONCORD, NH 03301 and the phone number is (603) 883-0005.
Counselor with taxonomy code 101YM0800X and a focus in Mental Health.
