DELAWARE OPHTHALMOLOGY CONSULTANTS PA
NPI 1104836626
Eyewear Supplier in Wilmington, DE

NPI Status: Active since August 08, 2006

Contact Information

3509 SILVERSIDE RD
WILMINGTON, DE
ZIP 19810
Phone: (302) 477-2626
Fax: (302) 477-2650

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  • Organization
  • Eyewear Supplier

About DELAWARE OPHTHALMOLOGY CONSULTANTS PA

This page provides the complete NPI Profile along with additional information for Delaware Ophthalmology Consultants Pa, a provider established in Wilmington, Delaware operating as a Eyewear Supplier. The healthcare provider is registered in the NPI registry with number 1104836626 assigned on August 2006. The practitioner's primary taxonomy code is 332H00000X with license number 1989019750 (DE). The provider is registered as an organization and their NPI record was last updated May 2026. The provider's . The authorized official of this NPI record is Michael Donahue (It Manger)

NPI
1104836626
Provider Legal Name
DELAWARE OPHTHALMOLOGY CONSULTANTS PA
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
3509 SILVERSIDE RD WILMINGTON, DE 19810
Location Phone
(302) 477-2626
Location Fax
(302) 477-2650
Mailing Address
3509 SILVERSIDE RD WILMINGTON, DE 19810
Mailing Phone
(302) 477-2611
Mailing Fax
(302) 477-2650
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
08-08-2006
Last Update Date
05-11-2026
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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

Eyewear Supplier

Taxonomy Code
332H00000X
Type
Suppliers
License No.
1989019750
License State
DE
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

MICHAEL DONAHUE

Authorized Official Title
IT MANGER
Authorized Official Phone
(302) 477-2611

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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 1104836626, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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
1
Unchanged
Pos 3
0
Doubled → 0
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
3
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
6
Unchanged
Pos 9
2
Doubled → 4
Check
6
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 8 → 16 → 7 6 → 12 → 3 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 0 + 4 + 1 + 6 + 3 + 1 + 2 + 6 + 4 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1104836626.

Other Providers at the Same Location


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

Ophthalmology
3509 SILVERSIDE RD
WILMINGTON, DE 19810
Optometrist
3509 SILVERSIDE RD
WILMINGTON, DE 19810
Optometrist
3509 SILVERSIDE RD
WILMINGTON, DE 19810
Optometrist
3509 SILVERSIDE RD
WILMINGTON, DE 19810

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104836626, enumerated as an "organization" on August 08, 2006.

The provider is located at 3509 SILVERSIDE RD WILMINGTON, DE 19810 and the phone number is (302) 477-2626.

Eyewear Supplier with taxonomy code 332H00000X.