RYAN LEMKE DDS PLLC
NPI 1326986639
Clinic/Center - Dental in Seattle, WA

NPI Status: Active since March 25, 2026

Contact Information

1628 N 45TH ST
SEATTLE, WA
ZIP 98103
Phone: (206) 632-5850
Fax: (206) 632-3638

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  • Organization
  • Clinic/Center
  • Dental

About RYAN LEMKE DDS PLLC

This page provides the complete NPI Profile along with additional information for Ryan Lemke Dds Pllc, a provider established in Seattle, Washington operating as a Clinic/center, focusing in dental . The healthcare provider is registered in the NPI registry with number 1326986639 assigned on March 2026. The practitioner's primary taxonomy code is 261QD0000X. The provider is registered as an organization and their NPI record was last updated March 2026. The authorized official of this NPI record is Dr. Ryan Lemke Dds (Owner)

NPI
1326986639
Provider Name
RYAN LEMKE DDS PLLC
Entity Type
Organization
Location Address
1628 N 45TH ST SEATTLE, WA 98103
Location Phone
(206) 632-5850
Location Fax
(206) 632-3638
Mailing Address
1628 N 45TH ST SEATTLE, WA 98103
Mailing Phone
(206) 632-5850
Mailing Fax
(206) 632-3638
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-25-2026
Last Update Date
03-25-2026
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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 Dental

Taxonomy Code
261QD0000X
Type
Ambulatory Health Care Facilities

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

DR. RYAN LEMKE DDS

Authorized Official Title
OWNER
Authorized Official Phone
(206) 856-5126

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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 1326986639, 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
3
Unchanged
Pos 3
2
Doubled → 4
Pos 4
6
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
8
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
6
Unchanged
Pos 9
3
Doubled → 6
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 2 → 4 9 → 18 → 9 6 → 12 → 3 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 4 + 6 + 1 + 8 + 8 + 1 + 2 + 6 + 6 + 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 1326986639.

Other Providers at the Same Location


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

Dentist
1628 N 45TH ST
SEATTLE, WA 98103
Dentist
1628 N 45TH ST
SEATTLE, WA 98103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1326986639, enumerated as an "organization" on March 25, 2026.

The provider is located at 1628 N 45TH ST SEATTLE, WA 98103 and the phone number is (206) 632-5850.

Clinic/Center with taxonomy code 261QD0000X and a focus in Dental.