DR. WARREN H GISS OD
NPI 1659425635
Optometrist in Ventura, CA

NPI Status: Active since January 23, 2007

Contact Information

200 S WELLS RD
CLINICAS DEL CAMINO REAL INC SUITE 250
VENTURA, CA
ZIP 93004
Phone: (805) 659-1740
Fax: (805) 659-9959

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  • Individual
  • Male
  • Optometrist

About WARREN GISS

This page provides the complete NPI Profile along with additional information for Warren Giss, a provider established in Ventura, California with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1659425635 assigned on January 2007. The practitioner's primary taxonomy code is 152W00000X with license number 04163T (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1659425635
Provider Name
DR. WARREN H GISS OD
Gender
Male
Entity Type
Individual
Location Address
200 S WELLS RD CLINICAS DEL CAMINO REAL INC SUITE 250 VENTURA, CA 93004
Location Phone
(805) 659-1740
Location Fax
(805) 659-9959
Mailing Address
7251 BRIARCLIFF CIRCLE VENTURA, CA 93003
Mailing Phone
(805) 644-3458
Is Sole Proprietor?
No
Enumeration Date
01-23-2007
Last Update Date
07-08-2007
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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.
04163T
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 1659425635, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
2
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
6
Unchanged
Pos 9
3
Doubled → 6
Check
5
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 4 → 8 5 → 10 → 1 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 0 + 9 + 8 + 2 + 1 + 0 + 6 + 6 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1659425635.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Psychologist
200 S WELLS RD, SUITE 350 CLINICAS DEL CMAINO REAL INC
VENTURA, CA 93004
Psychiatry & Neurology (Psychiatry)
200 S WELLS RD
VENTURA, CA 93004
Psychologist
200 S WELLS RD, SUITE 200 CLINICAS DEL CAMINO REAL INC
VENTURA, CA 93004
Social Worker (Clinical)
200 S WELLS RD, CLINICAS DEL CAMINO REAL SUITE 250
VENTURA, CA 93004
Marriage & Family Therapist
200 S WELLS RD, SUITE 225
VENTURA, CA 93004
Dentist
200 S WELLS RD, 200
VENTURA, CA 93004
Social Worker (Clinical)
200 S WELLS RD
VENTURA, CA 93004
Community/Behavioral Health
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Social Worker (Clinical)
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Psychologist (Clinical)
200 S WELLS RD, #100
VENTURA, CA 93004
Clinic/Center
200 S WELLS RD
VENTURA, CA 93004
Internal Medicine
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Physician Assistant
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Family Medicine
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Dentist
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Pediatrics
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Internal Medicine
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Dentist
200 S WELLS RD, SUITE 200
VENTURA, CA 93004
Dentist (General Practice)
200 S WELLS RD, SUITE 200
VENTURA, CA 93004

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659425635, enumerated as an "individual" on January 23, 2007.

The provider is located at 200 S WELLS RD CLINICAS DEL CAMINO REAL INC SUITE 250 VENTURA, CA 93004 and the phone number is (805) 659-1740.

Optometrist with taxonomy code 152W00000X.