DR. KEN ALAN CALHOUN PHD, LPC
NPI 1811912355
Counselor - Professional in Colorado Springs, CO

NPI Status: Active since July 13, 2006

Contact Information

1255 LAKE PLAZA DR
SUITE 270
COLORADO SPRINGS, CO
ZIP 80906
Phone: (719) 473-6114
Fax: (719) 473-6114

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  • Individual
  • Male
  • Counselor
  • Professional

About KEN CALHOUN

This page provides the complete NPI Profile along with additional information for Ken Calhoun, a provider established in Colorado Springs, Colorado with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1811912355 assigned on July 2006. The practitioner's primary taxonomy code is 101YP2500X with license number 2641 (CO). The provider is registered as an individual and his NPI record was last updated 16 years ago.

NPI
1811912355
Provider Name
DR. KEN ALAN CALHOUN PHD, LPC
Gender
Male
Entity Type
Individual
Location Address
1255 LAKE PLAZA DR SUITE 270 COLORADO SPRINGS, CO 80906
Location Phone
(719) 473-6114
Location Fax
(719) 473-6114
Mailing Address
1255 LAKE PLAZA DR 270 COLORADO SPRINGS, CO 80906
Mailing Phone
(719) 473-6114
Mailing Fax
(719) 473-6114
Is Sole Proprietor?
Yes
Enumeration Date
07-13-2006
Last Update Date
12-22-2009
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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 Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
2641
License State
CO

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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 1811912355, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 2 + 1 + 1 + 8 + 1 + 4 + 3 + 1 + 0 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1811912355.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Optometrist
1255 LAKE PLAZA DR, SUITE 270
COLORADO SPRINGS, CO 80906
Clinic/Center (Hearing and Speech)
1255 LAKE PLAZA DR, SUITE269
COLORADO SPRINGS, CO 80906
Clinic/Center (Hearing and Speech)
1255 LAKE PLAZA DR, #269
COLORADO SPRINGS, CO 80906
Massage Therapist
1255 LAKE PLAZA DR, SUITE 268
COLORADO SPRINGS, CO 80906

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1811912355, enumerated as an "individual" on July 13, 2006.

The provider is located at 1255 LAKE PLAZA DR SUITE 270 COLORADO SPRINGS, CO 80906 and the phone number is (719) 473-6114.

Counselor with taxonomy code 101YP2500X and a focus in Professional.