STEPHEN KWAN O.D
NPI 1366835928
Optometrist in Elk Grove, CA

NPI Status: Active since March 06, 2015

Contact Information

9201 BIG HORN BLVD
OPTOMETRY DEPARTMENT
ELK GROVE, CA
ZIP 95758
Phone: (916) 478-5580

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  • Individual
  • Male
  • Optometrist

About STEPHEN KWAN

This page provides the complete NPI Profile along with additional information for Stephen Kwan, a provider established in Elk Grove, California with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1366835928 assigned on March 2015. The practitioner's primary taxonomy code is 152W00000X with license number 15026 (CA). The provider is registered as an individual and his NPI record was last updated 10 years ago.

NPI
1366835928
Provider Name
STEPHEN KWAN O.D
Gender
Male
Entity Type
Individual
Location Address
9201 BIG HORN BLVD OPTOMETRY DEPARTMENT ELK GROVE, CA 95758
Location Phone
(916) 478-5580
Mailing Address
9201 BIG HORN BLVD OPTOMETRY DEPARTMENT ELK GROVE, CA 95758
Mailing Phone
(916) 478-5580
Is Sole Proprietor?
Yes
Enumeration Date
03-06-2015
Last Update Date
12-29-2015
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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.
15026
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.

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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 1366835928, 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 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
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
6
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
3
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
9
Unchanged
Pos 9
2
Doubled → 4
Check
8
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 6 → 12 → 3 8 → 16 → 7 5 → 10 → 1 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 2 + 6 + 1 + 6 + 3 + 1 + 0 + 9 + 4 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1366835928.

Other Providers at the Same Location


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

Nurse Practitioner (Obstetrics & Gynecology)
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Dermatology
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Pediatrics
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Psychiatry & Neurology (Psychiatry)
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Internal Medicine
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Internal Medicine
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Obstetrics & Gynecology
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Pediatrics
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Nurse Practitioner
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Physical Therapist
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Optometrist
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Psychologist
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Optometrist
9201 BIG HORN BLVD, OPTOMETRY DEPT
ELK GROVE, CA 95758
Nurse Practitioner (Family)
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Psychologist (Clinical)
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Internal Medicine
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Family Medicine
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Psychologist (Clinical)
9201 BIG HORN BLVD, PSYCHIATRY
ELK GROVE, CA 95758
Social Worker (Clinical)
9201 BIG HORN BLVD
ELK GROVE, CA 95758
Pharmacist
9201 BIG HORN BLVD
ELK GROVE, CA 95758

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1366835928, enumerated as an "individual" on March 06, 2015.

The provider is located at 9201 BIG HORN BLVD OPTOMETRY DEPARTMENT ELK GROVE, CA 95758 and the phone number is (916) 478-5580.

Optometrist with taxonomy code 152W00000X.