MARK NAKANO OPTOMETRIC CORPORATION
NPI 1508999269
Optometrist in Torrance, CA

NPI Status: Active since March 13, 2007

Contact Information

4201 TORRANCE BLVD
SUITE 580
TORRANCE, CA
ZIP 90503
Phone: (310) 316-6726
Fax: (310) 316-6856

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  • Organization
  • Optometrist

About MARK NAKANO OPTOMETRIC CORPORATION

This page provides the complete NPI Profile along with additional information for Mark Nakano Optometric Corporation, a provider established in Torrance, California operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1508999269 assigned on March 2007. The practitioner's primary taxonomy code is 152W00000X with license number 8818TLG (CA). The provider is registered as an organization and their NPI record was last updated 6 years ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Mark E Nakano O.d. (Owner)

NPI
1508999269
Provider Name
MARK NAKANO OPTOMETRIC CORPORATION
Entity Type
Organization
Location Address
4201 TORRANCE BLVD SUITE 580 TORRANCE, CA 90503
Location Phone
(310) 316-6726
Location Fax
(310) 316-6856
Mailing Address
4201 TORRANCE BLVD SUITE 580 TORRANCE, CA 90503
Mailing Phone
(310) 316-6726
Mailing Fax
(310) 316-6856
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-13-2007
Last Update Date
08-22-2020
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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

Optometrist

Taxonomy Code
152W00000X
Type
Eye and Vision Services Providers
License No.
8818TLG
License State
CA
Taxonomy Description
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area 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. MARK E NAKANO O.D.

Authorized Official Title
OWNER
Authorized Official Phone
(310) 316-6726

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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 1508999269, 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
5
Unchanged
Pos 3
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
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 0 → 0 9 → 18 → 9 9 → 18 → 9 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 1 + 8 + 9 + 1 + 8 + 2 + 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 1508999269.

Other Providers at the Same Location


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

Specialist
4201 TORRANCE BLVD, STE 190
TORRANCE, CA 90503
Dentist (Periodontics)
4201 TORRANCE BLVD, STE 450
TORRANCE, CA 90503
Specialist
4201 TORRANCE BLVD, STE 640
TORRANCE, CA 90503
Specialist
4201 TORRANCE BLVD, SUITE 190
TORRANCE, CA 90503
Ophthalmology
4201 TORRANCE BLVD, SUITE 580
TORRANCE, CA 90503
Optometrist
4201 TORRANCE BLVD, STE 580
TORRANCE, CA 90503
Internal Medicine
4201 TORRANCE BLVD, SUITE 590
TORRANCE, CA 90503
Internal Medicine (Cardiovascular Disease)
4201 TORRANCE BLVD, SUITE 590
TORRANCE, CA 90503
Obstetrics & Gynecology
4201 TORRANCE BLVD, SUITE 780
TORRANCE, CA 90503
Specialist
4201 TORRANCE BLVD, SUITE 735
TORRANCE, CA 90503
Internal Medicine (Gastroenterology)
4201 TORRANCE BLVD, SUITE 730
TORRANCE, CA 90503
Nurse Practitioner
4201 TORRANCE BLVD, SUITE 350
TORRANCE, CA 90503
Dentist (General Practice)
4201 TORRANCE BLVD, #490
TORRANCE, CA 90503
Pediatrics
4201 TORRANCE BLVD, SUITE 370
TORRANCE, CA 90503
Audiologist-Hearing Aid Fitter
4201 TORRANCE BLVD, 140
TORRANCE, CA 90503
Dentist (Endodontics)
4201 TORRANCE BLVD, SUITE 480
TORRANCE, CA 90503
Audiologist
4201 TORRANCE BLVD, SUITE 140
TORRANCE, CA 90503
Radiologic Technologist (Nuclear Medicine Technology)
4201 TORRANCE BLVD, SUITE 740
TORRANCE, CA 90503
Dentist
4201 TORRANCE BLVD, SUITE 420
TORRANCE, CA 90503
Orthopaedic Surgery
4201 TORRANCE BLVD, 470
TORRANCE, CA 90503

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508999269, enumerated as an "organization" on March 13, 2007.

The provider is located at 4201 TORRANCE BLVD SUITE 580 TORRANCE, CA 90503 and the phone number is (310) 316-6726.

Optometrist with taxonomy code 152W00000X.