DIABLO VALLEY OPTICAL
NPI 1629299573
Eyewear Supplier in Walnut Creek, CA

NPI Status: Active since May 01, 2007

Contact Information

112 LA CASA VIA STE 260
WALNUT CREEK, CA
ZIP 94598
Phone: (925) 934-7800

Get Directions Write a Review

  • Organization
  • Eyewear Supplier

About DIABLO VALLEY OPTICAL

This page provides the complete NPI Profile along with additional information for Diablo Valley Optical, a provider established in Walnut Creek, California operating as a Eyewear Supplier. The healthcare provider is registered in the NPI registry with number 1629299573 assigned on May 2007. The practitioner's primary taxonomy code is 332H00000X with license number A23985 (CA). The provider is registered as an organization and their NPI record was last updated 6 years ago. The authorized official of this NPI record is J. Frederick Riedel M.d. (Owner)

NPI
1629299573
Provider Name
DIABLO VALLEY OPTICAL
Entity Type
Organization
Location Address
112 LA CASA VIA STE 260 WALNUT CREEK, CA 94598
Location Phone
(925) 934-7800
Mailing Address
112 LA CASA VIA #260 WALNUT CREEK, CA 94598
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-01-2007
Last Update Date
08-22-2020
Code Navigator

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

Eyewear Supplier

Taxonomy Code
332H00000X
Type
Suppliers
License No.
A23985
License State
CA
Taxonomy Description
An organization that provides spectacles, contact lenses, and other vision enhancement devices prescribed by an optometrist or ophthalmologist.

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

J. FREDERICK RIEDEL M.D.

Authorized Official Title
OWNER
Authorized Official Phone
(925) 934-7800

Reviews for DIABLO VALLEY OPTICAL

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1629299573, we treat the final digit (3) 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 3).

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
2
Doubled → 4
Pos 4
9
Unchanged
Pos 5
2
Doubled → 4
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
5
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
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 2 → 4 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 4 + 9 + 1 + 8 + 5 + 1 + 4 + 24 = 77

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

The next multiple of ten after 77 is 80. The difference is the calculated check digit.

80 - 77 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1629299573.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Ophthalmology
112 LA CASA VIA STE 260
WALNUT CREEK, CA 94598
Ophthalmology
112 LA CASA VIA STE 260
WALNUT CREEK, CA 94598
Eyewear Supplier
112 LA CASA VIA STE 260
WALNUT CREEK, CA 94598
Ophthalmology
112 LA CASA VIA STE 260
WALNUT CREEK, CA 94598

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629299573, enumerated as an "organization" on May 01, 2007.

The provider is located at 112 LA CASA VIA STE 260 WALNUT CREEK, CA 94598 and the phone number is (925) 934-7800.

Eyewear Supplier with taxonomy code 332H00000X.