CLARE GILGANNON
NPI 1992652838
Counselor - Professional in Corvallis, OR

NPI Status: Active since March 11, 2026

Contact Information

1300 NW HARRISON BLVD
CORVALLIS, OR
ZIP 97330
Phone: (541) 203-0485
Fax: (541) 833-6655

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  • Individual
  • Female
  • Counselor
  • Professional

About CLARE GILGANNON

This page provides the complete NPI Profile along with additional information for Clare Gilgannon, a provider established in Corvallis, Oregon with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1992652838 assigned on March 2026. The practitioner's primary taxonomy code is 101YP2500X. The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1992652838
Provider Name
CLARE GILGANNON
Gender
Female
Entity Type
Individual
Location Address
1300 NW HARRISON BLVD CORVALLIS, OR 97330
Location Phone
(541) 203-0485
Location Fax
(541) 833-6655
Mailing Address
1300 NW HARRISON BLVD CORVALLIS, OR 97330
Mailing Phone
(541) 203-0485
Mailing Fax
(541) 833-6655
Is Sole Proprietor?
No
Enumeration Date
03-11-2026
Last Update Date
03-11-2026
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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

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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 1992652838, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
9
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
2
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
5
Unchanged
Pos 7
2
Doubled → 4
Pos 8
8
Unchanged
Pos 9
3
Doubled → 6
Check
8
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 9 → 18 → 9 6 → 12 → 3 2 → 4 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 8 + 2 + 1 + 2 + 5 + 4 + 8 + 6 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1992652838.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Psychologist
1300 NW HARRISON BLVD, STE # 140
CORVALLIS, OR 97330
Psychologist (Clinical)
1300 NW HARRISON BLVD, SUITE 100
CORVALLIS, OR 97330
Psychologist (Clinical)
1300 NW HARRISON BLVD, SUITE 100
CORVALLIS, OR 97330
Psychologist (Clinical)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Clinic/Center (Adult Mental Health)
1300 NW HARRISON BLVD, SUITE B-10
CORVALLIS, OR 97330
Psychologist
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Mental Health)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Mental Health)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Professional)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Mental Health)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Professional)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Social Worker (Clinical)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Professional)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Professional)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Professional)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Marriage & Family Therapist
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Professional)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330
Counselor (Professional)
1300 NW HARRISON BLVD
CORVALLIS, OR 97330

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1992652838, enumerated as an "individual" on March 11, 2026.

The provider is located at 1300 NW HARRISON BLVD CORVALLIS, OR 97330 and the phone number is (541) 203-0485.

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