GAYLOR PSYCHOTHERAPY, PLLC
NPI 1619748969
Clinic/Center - Adult Mental Health in Seattle, WA

NPI Status: Active since January 15, 2024

Contact Information

411 UNIVERSITY ST STE 1200
SEATTLE, WA
ZIP 98101
Phone: (425) 243-3681

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  • Organization
  • Clinic/Center
  • Adult Mental Health

About GAYLOR PSYCHOTHERAPY, PLLC

This page provides the complete NPI Profile along with additional information for Gaylor Psychotherapy, Pllc, a provider established in Seattle, Washington operating as a Clinic/center, focusing in adult mental health . The healthcare provider is registered in the NPI registry with number 1619748969 assigned on January 2024. The practitioner's primary taxonomy code is 261QM0850X. The provider is registered as an organization and their NPI record was last updated May 2026. The authorized official of this NPI record is Jonathan Gaylor Lmhca (Owner)

NPI
1619748969
Provider Name
GAYLOR PSYCHOTHERAPY, PLLC
Entity Type
Organization
Location Address
411 UNIVERSITY ST STE 1200 SEATTLE, WA 98101
Location Phone
(425) 243-3681
Mailing Address
411 UNIVERSITY ST STE 1200 SEATTLE, WA 98101
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-15-2024
Last Update Date
05-01-2026
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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

Clinic/Center Adult Mental Health

Taxonomy Code
261QM0850X
Type
Ambulatory Health Care Facilities
Taxonomy Description
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to mental and behavioral disorders in adults.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

JONATHAN GAYLOR LMHCA

Authorized Official Title
OWNER
Authorized Official Phone
(425) 243-3681

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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 1619748969, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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
1
Doubled → 2
Pos 4
9
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
4
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
9
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
9
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 7 → 14 → 5 8 → 16 → 7 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 1 + 4 + 4 + 1 + 6 + 9 + 1 + 2 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1619748969.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Clinic/Center (Mental Health (Including Community Mental Health Center))
411 UNIVERSITY ST STE 1200
SEATTLE, WA 98101
Counselor (Mental Health)
411 UNIVERSITY ST STE 1200
SEATTLE, WA 98101

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619748969, enumerated as an "organization" on January 15, 2024.

The provider is located at 411 UNIVERSITY ST STE 1200 SEATTLE, WA 98101 and the phone number is (425) 243-3681.

Clinic/Center with taxonomy code 261QM0850X and a focus in Adult Mental Health.