NELSON PAI DDS & SUSAN ISHIOKA DDS MS, INC.
NPI 1851503437
Dentist - Orthodontics and Dentofacial Orthopedics in Los Alamitos, CA

NPI Status: Active since May 04, 2007

Contact Information

5122 KATELLA AVE
SUITE 112
LOS ALAMITOS, CA
ZIP 90720
Phone: (562) 493-2807

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  • Organization
  • Dentist
  • Orthodontics and Dentofacial Orthopedics

About NELSON PAI DDS & SUSAN ISHIOKA DDS MS, INC.

This page provides the complete NPI Profile along with additional information for Nelson Pai Dds & Susan Ishioka Dds Ms, Inc., a provider established in Los Alamitos, California operating as a Dentist, focusing in orthodontics and dentofacial orthopedics . The healthcare provider is registered in the NPI registry with number 1851503437 assigned on May 2007. The practitioner's primary taxonomy code is 1223X0400X with license number 35506 (CA). The provider is registered as an organization and their NPI record was last updated one year ago. Nelson Pai Dds & Susan Ishioka Dds Ms, Inc. 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 Dr. Nelson Pai Dds (President)

NPI
1851503437
Provider Name
NELSON PAI DDS & SUSAN ISHIOKA DDS MS, INC.
Entity Type
Organization
Location Address
5122 KATELLA AVE SUITE 112 LOS ALAMITOS, CA 90720
Location Phone
(562) 493-2807
Mailing Address
5122 KATELLA AVE SUITE 112 LOS ALAMITOS, CA 90720
Mailing Phone
(562) 493-2807
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-04-2007
Last Update Date
09-11-2025
Code Navigator

A dentist like Nelson Pai Dds & Susan Ishioka Dds Ms, Inc. 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 Orthodontics and Dentofacial Orthopedics

Taxonomy Code
1223X0400X
Type
Dental Providers
License No.
35506
License State
CA
Taxonomy Description
That area of dentistry concerned with the supervision, guidance and correction of the growing or mature dentofacial structures, including those conditions that require movement of teeth or correction of malrelationships and malformations of their related structures and the adjustment of relationships between and among teeth and facial bones by the application of forces and/or the stimulation and redirection of functional forces within the craniofacial complex. Major responsibilities of orthodontic practice include the diagnosis, prevention, interception and treatment of all forms of malocclusion of the teeth and associated alterations in their surrounding structures; the design, application and control of functional and corrective appliances; and the guidance of the dentition and its supporting structures to attain and maintain optimum occlusal relations in physiologic and esthetic harmony among facial and cranial structures.

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

34540 (CA)
21223P0221XDental Providers

Dentist
Pediatric Dentistry

35506 (CA)

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

DR. NELSON PAI DDS

Authorized Official Title
PRESIDENT
Authorized Official Phone
(562) 493-2807

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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 1851503437, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
0
Unchanged
Pos 7
3
Doubled → 6
Pos 8
4
Unchanged
Pos 9
3
Doubled → 6
Check
7
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 5 → 10 → 1 3 → 6 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 1 + 0 + 0 + 6 + 4 + 6 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1851503437.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Podiatrist (Foot Surgery)
5122 KATELLA AVE, SUITE 102
LOS ALAMITOS, CA 90720
Chiropractor
5122 KATELLA AVE, SUITE 300
LOS ALAMITOS, CA 90720
Psychologist
5122 KATELLA AVE, SUITE 201
LOS ALAMITOS, CA 90720
Marriage & Family Therapist
5122 KATELLA AVE, 201
LOS ALAMITOS, CA 90720
Dentist (General Practice)
5122 KATELLA AVE, SUITE 112
LOS ALAMITOS, CA 90720
Marriage & Family Therapist
5122 KATELLA AVE, SUITE 305
LOS ALAMITOS, CA 90720
Marriage & Family Therapist
5122 KATELLA AVE, SUITE 305
LOS ALAMITOS, CA 90720
Marriage & Family Therapist
5122 KATELLA AVE, SUITE 305
LOS ALAMITOS, CA 90720
Podiatrist (Foot Surgery)
5122 KATELLA AVE, SUITE 102
LOS ALAMITOS, CA 90720
Chiropractor
5122 KATELLA AVE, SUITE 300
LOS ALAMITOS, CA 90720
Internal Medicine
5122 KATELLA AVE, #210
LOS ALAMITOS, CA 90720
Physical Therapist (Orthopedic)
5122 KATELLA AVE, STE 16
LOS ALAMITOS, CA 90720
Marriage & Family Therapist
5122 KATELLA AVE, SUITE 305
LOS ALAMITOS, CA 90720
Physical Therapist
5122 KATELLA AVE, STE 16
LOS ALAMITOS, CA 90720
Surgery
5122 KATELLA AVE, STE 220
LOS ALAMITOS, CA 90720
Clinic/Center (Medical Specialty)
5122 KATELLA AVE
LOS ALAMITOS, CA 90720
Internal Medicine
5122 KATELLA AVE, SUITE 308
LOS ALAMITOS, CA 90720
Dentist (Pediatric Dentistry)
5122 KATELLA AVE, SUITE 112
LOS ALAMITOS, CA 90720

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851503437, enumerated as an "organization" on May 04, 2007.

The provider is located at 5122 KATELLA AVE SUITE 112 LOS ALAMITOS, CA 90720 and the phone number is (562) 493-2807.

Dentist with taxonomy code 1223X0400X and a focus in Orthodontics and Dentofacial Orthopedics.