RETINA PHYSICIANS OF CENTRAL TEXAS PLLC
NPI 1689503310
Ophthalmology - Retina Specialist in Round Rock, TX
NPI Status: Active since May 18, 2026
Contact Information
7700 CAT HOLLOW DR STE 202
ROUND ROCK, TX
ZIP 78681
Phone: (512) 843-2819
Fax: (512) 610-0649
This NPI profile has been added to the NPI registry within the last 30 days.
- Organization
- Ophthalmology
- Retina Specialist
About RETINA PHYSICIANS OF CENTRAL TEXAS PLLC
This page provides the complete NPI Profile along with additional information for Retina Physicians Of Central Texas Pllc, a provider established in Round Rock, Texas operating as a Ophthalmology, focusing in retina specialist . The healthcare provider is registered in the NPI registry with number 1689503310 assigned on May 2026. The practitioner's primary taxonomy code is 207WX0107X. The provider is registered as an organization and their NPI record was last updated May 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Oliver G Fischer Md (Physician/owner)
- NPI
- 1689503310
- Provider Name
- RETINA PHYSICIANS OF CENTRAL TEXAS PLLC
- Entity Type
- Organization
- Location Address
- 7700 CAT HOLLOW DR STE 202 ROUND ROCK, TX 78681
- Location Phone
- (512) 843-2819
- Location Fax
- (512) 610-0649
- Mailing Address
- 7700 CAT HOLLOW DR STE 202 ROUND ROCK, TX 78681
- Mailing Phone
- (512) 843-2819
- Mailing Fax
- (512) 610-0649
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 05-18-2026
- Last Update Date
- 05-18-2026
- 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
Ophthalmology Retina Specialist
- Taxonomy Code
- 207WX0107X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
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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 1689503310, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 60 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 3 providers are registered at the same or a nearby location.
ROUND ROCK, TX 78681
ROUND ROCK, TX 78681
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1689503310, enumerated as an "organization" on May 18, 2026.
The provider is located at 7700 CAT HOLLOW DR STE 202 ROUND ROCK, TX 78681 and the phone number is (512) 843-2819.
Ophthalmology with taxonomy code 207WX0107X and a focus in Retina Specialist.
