AARON SPENCER TOLER DMD
NPI 1356155808
Dentist - General Practice in Seattle, WA

NPI Status: Active since February 05, 2025

Contact Information

747 BROADWAY
SEATTLE, WA
ZIP 98122
Phone: (206) 386-6000

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Dentist
General Practice

About AARON TOLER

This page provides the complete NPI Profile along with additional information for Aaron Toler, a provider established in Seattle, Washington with a medical specialization in Dentist, focusing in general practice . The healthcare provider is registered in the NPI registry with number 1356155808 assigned on February 2025. The practitioner's primary taxonomy code is 1223G0001X with license number DEUW.DR.61663679 (WA). The provider is registered as an individual and his NPI record was last updated March 2026.

NPI: 1356155808
Provider Name: AARON SPENCER TOLER DMD
Gender: Male
Entity Type: Individual
Location Address: 747 BROADWAY SEATTLE, WA 98122
Location Phone: (206) 386-6000
Mailing Address: 150 BEE ST APT 313 CHARLESTON, SC 29401
Is Sole Proprietor?: Yes
Enumeration Date: 02-05-2025
Last Update Date: 03-15-2026
Code Navigator

A dentist like Aaron Toler is a skilled in and licensed provider that diagnoses and treats problems with patients teeth, gums, and related parts of the mouth. Dentists educate patients on how to take care of the teeth and gums and provide information on diet choices that affect oral health. Dentists must be licensed in the state in which they work.

Location Map

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: Dentist General Practice
Taxonomy Code: 1223G0001X
Type: Dental Providers
License No.: DEUW.DR.61663679
License State: WA
Taxonomy Description: A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	122300000X	Dental Providers	Dentist	DGD.11312.GD (SC)
2	390200000X	Student, Health Care	Student in an Organized Health Care Education/Training Program

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 1356155808, 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 2

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 0

Check

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 5 → 10 → 1 1 → 2 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 0 + 6 + 2 + 5 + 1 + 0 + 8 + 0 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8

This NPI is valid

The calculated check digit is 8, which matches the last digit of 1356155808.

Other Providers at the Same Location

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

MR. ROBERT GENNARO RESTA M.S., C.G.C.

Genetic Counselor, MS

747 BROADWAY, SWEDISH MEDICAL CENTER
SEATTLE, WA 98122

King County (206) 386-2101

DR. JOEL ALFRED HIGHNESS M.D.

Anesthesiology