DR. GARTH JACKSON GILLAN DMIN
NPI 1689655425
Counselor - Professional in State College, PA

NPI Status: Active since November 09, 2005

Contact Information

108 W BEAVER AVE
SUITE 205
STATE COLLEGE, PA
ZIP 16801
Phone: (814) 234-2279
Fax: (814) 422-0778

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  • Individual
  • Male
  • Counselor
  • Professional

About GARTH GILLAN

This page provides the complete NPI Profile along with additional information for Garth Gillan, a provider established in State College, Pennsylvania with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1689655425 assigned on November 2005. The practitioner's primary taxonomy code is 101YP2500X with license number PC002317 (PA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1689655425
Provider Name
DR. GARTH JACKSON GILLAN DMIN
Gender
Male
Entity Type
Individual
Location Address
108 W BEAVER AVE SUITE 205 STATE COLLEGE, PA 16801
Location Phone
(814) 234-2279
Location Fax
(814) 422-0778
Mailing Address
108 W BEAVER AVE SUITE 205 STATE COLLEGE, PA 16801
Mailing Phone
(814) 234-2279
Mailing Fax
(814) 422-0778
Is Sole Proprietor?
Yes
Enumeration Date
11-09-2005
Last Update Date
07-08-2007
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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.
PC002317
License State
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 1689655425, 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 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
6
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
9
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
5
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
4
Unchanged
Pos 9
2
Doubled → 4
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 8 → 16 → 7 6 → 12 → 3 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 + 6 + 1 + 6 + 9 + 1 + 2 + 5 + 1 + 0 + 4 + 4 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1689655425.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1689655425, enumerated as an "individual" on November 09, 2005.

The provider is located at 108 W BEAVER AVE SUITE 205 STATE COLLEGE, PA 16801 and the phone number is (814) 234-2279.

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