DR. DENNIS ORLA BUCK O.D.
NPI 1821117805
Optometrist in Glendale, AZ

NPI Status: Active since March 28, 2007

Contact Information

9350 W NORTHERN AVE
GLENDALE, AZ
ZIP 85305
Phone: (623) 877-3571
Fax: (623) 877-3769

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  • Individual
  • Male
  • Optometrist

About DENNIS BUCK

This page provides the complete NPI Profile along with additional information for Dennis Buck, a provider established in Glendale, Arizona with a medical specialization in Optometrist. The healthcare provider is registered in the NPI registry with number 1821117805 assigned on March 2007. The practitioner's primary taxonomy code is 152W00000X with license number 25 (AZ). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1821117805
Provider Name
DR. DENNIS ORLA BUCK O.D.
Gender
Male
Entity Type
Individual
Location Address
9350 W NORTHERN AVE GLENDALE, AZ 85305
Location Phone
(623) 877-3571
Location Fax
(623) 877-3769
Mailing Address
1207 E MICHELLE DR PHOENIX, AZ 85022
Mailing Phone
(602) 971-9357
Is Sole Proprietor?
Yes
Enumeration Date
03-28-2007
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.
25
License State
AZ
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 1821117805, 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 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
8
Unchanged
Pos 3
2
Doubled → 4
Pos 4
1
Unchanged
Pos 5
1
Doubled → 2
Pos 6
1
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
8
Unchanged
Pos 9
0
Doubled → 0
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 2 → 4 1 → 2 7 → 14 → 5 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 4 + 1 + 2 + 1 + 1 + 4 + 8 + 0 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1821117805.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Pharmacist
9350 W NORTHERN AVE, T-1361
GLENDALE, AZ 85305
Optometrist
9350 W NORTHERN AVE
GLENDALE, AZ 85305
Optometrist
9350 W NORTHERN AVE
GLENDALE, AZ 85305
Pharmacy
9350 W NORTHERN AVE
GLENDALE, AZ 85305
Eyewear Supplier
9350 W NORTHERN AVE
GLENDALE, AZ 85305

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1821117805, enumerated as an "individual" on March 28, 2007.

The provider is located at 9350 W NORTHERN AVE GLENDALE, AZ 85305 and the phone number is (623) 877-3571.

Optometrist with taxonomy code 152W00000X.