HUANG & HSU, P.L.L.C.
NPI 1134067119
Dentist - Prosthodontics in Everett, WA

NPI Status: Active since March 23, 2026

Contact Information

827 128TH ST SW STE A
EVERETT, WA
ZIP 98204
Phone: (425) 290-9277
Fax: (425) 290-9294

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  • Organization
  • Dentist
  • Prosthodontics

About HUANG & HSU, P.L.L.C.

This page provides the complete NPI Profile along with additional information for Huang & Hsu, P.l.l.c., a provider established in Everett, Washington operating as a Dentist, focusing in prosthodontics . The healthcare provider is registered in the NPI registry with number 1134067119 assigned on March 2026. The practitioner's primary taxonomy code is 1223P0700X. The provider is registered as an organization and their NPI record was last updated March 2026. Huang & Hsu, P.l.l.c. operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Nan-chieh Huang Dds, Mdsc, Msd (Owner)

NPI
1134067119
Provider Name
HUANG & HSU, P.L.L.C.
Entity Type
Organization
Location Address
827 128TH ST SW STE A EVERETT, WA 98204
Location Phone
(425) 290-9277
Location Fax
(425) 290-9294
Mailing Address
827 128TH ST SW STE A EVERETT, WA 98204
Mailing Phone
(425) 290-9277
Mailing Fax
(425) 290-9294
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-23-2026
Last Update Date
03-23-2026
Code Navigator

A dentist like Huang & Hsu, P.l.l.c. 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 Prosthodontics

Taxonomy Code
1223P0700X
Type
Dental Providers
Taxonomy Description
That branch of dentistry pertaining to the restoration and maintenance of oral functions, comfort, appearance and health of the patient by the restoration of natural teeth and/or the replacement of missing teeth and contiguous oral and maxillofacial tissues with artificial substitutes.

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)
11223G0001XDental Providers

Dentist
General Practice

 
21223P0300XDental Providers

Dentist
Periodontics

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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

NAN-CHIEH HUANG DDS, MDSC, MSD

Authorized Official Title
OWNER
Authorized Official Phone
(425) 290-9277

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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 1134067119, 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 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
1
Unchanged
Pos 3
3
Doubled → 6
Pos 4
4
Unchanged
Pos 5
0
Doubled → 0
Pos 6
6
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
1
Unchanged
Pos 9
1
Doubled → 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 3 → 6 0 → 0 7 → 14 → 5 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 6 + 4 + 0 + 6 + 1 + 4 + 1 + 2 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1134067119.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134067119, enumerated as an "organization" on March 23, 2026.

The provider is located at 827 128TH ST SW STE A EVERETT, WA 98204 and the phone number is (425) 290-9277.

Dentist with taxonomy code 1223P0700X and a focus in Prosthodontics.