THE RETINA GROUP OF WASHINGTON, PLLC
NPI 1720848708
Ophthalmology in Fairfax, VA

NPI Status: Active since March 19, 2024

Contact Information

8270 WILLOW OAKS CORPORATE DR FL 6
FAIRFAX, VA
ZIP 22031
Phone: (703) 698-9335
Fax: (703) 207-0038

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  • Organization
  • Ophthalmology
  • CLIA Number: 49D2096417
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 09-28-2027

About THE RETINA GROUP OF WASHINGTON, PLLC

This page provides the complete NPI Profile along with additional information for The Retina Group Of Washington, Pllc, a provider established in Fairfax, Virginia operating as a Ophthalmology. The healthcare provider is registered in the NPI registry with number 1720848708 assigned on March 2024. The practitioner's primary taxonomy code is 207W00000X. The provider is registered as an organization and their NPI record was last updated 2 years ago. The Retina Group Of Washington, Pllc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Steven A Madreperla Md, Phd (Owner/ceo)

NPI
1720848708
Provider Name
THE RETINA GROUP OF WASHINGTON, PLLC
Entity Type
Organization
Location Address
8270 WILLOW OAKS CORPORATE DR FL 6 FAIRFAX, VA 22031
Location Phone
(703) 698-9335
Location Fax
(703) 207-0038
Mailing Address
420 MOUNTAIN AVE FL 4 NEW PROVIDENCE, NJ 07974
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
03-19-2024
Last Update Date
05-23-2024
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Ophthalmologists like The Retina Group Of Washington, Pllc specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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

STEVEN A MADREPERLA MD, PHD

Authorized Official Title
OWNER/CEO
Authorized Official Phone
(908) 458-8321

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
49D2096417
Facility Type
Physician Office
Certificate Effective Date
September 29, 2025
Certificate Expiration Date
September 28, 2027
Laboratory Director
ALEXANDER L. MELAMUD
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to The Retina Group Of Washington, Pllc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1720848708, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 1 + 6 + 4 + 1 + 6 + 7 + 0 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1720848708.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Ophthalmology (Retina Specialist)
8270 WILLOW OAKS CORPORATE DR FL 6
FAIRFAX, VA 22031
Ophthalmology (Retina Specialist)
8270 WILLOW OAKS CORPORATE DR FL 6
FAIRFAX, VA 22031
Ophthalmology
8270 WILLOW OAKS CORPORATE DR FL 6
FAIRFAX, VA 22031

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720848708, enumerated as an "organization" on March 19, 2024.

The provider is located at 8270 WILLOW OAKS CORPORATE DR FL 6 FAIRFAX, VA 22031 and the phone number is (703) 698-9335.

Ophthalmology with taxonomy code 207W00000X.