GI ENDOSCOPY CENTER OF NORTHERN VIRGINIA
NPI 1790912566
Clinic/Center - Endoscopy in Alexandria, VA

NPI Status: Active since June 18, 2009

Contact Information

4660 KENMORE AVE
SUITE 100
ALEXANDRIA, VA
ZIP 22304
Phone: (703) 751-5763
Fax: (703) 370-4655

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  • Organization
  • Clinic/Center
  • Endoscopy
  • CLIA Number: 49D1103662
  • CLIA Cert. Type: Ambulatory Surgery Center
  • CLIA Exp. Date: 08-13-2027

About GI ENDOSCOPY CENTER OF NORTHERN VIRGINIA

This page provides the complete NPI Profile along with additional information for Gi Endoscopy Center Of Northern Virginia, a provider established in Alexandria, Virginia operating as a Clinic/center, focusing in endoscopy . The healthcare provider is registered in the NPI registry with number 1790912566 assigned on June 2009. The practitioner's primary taxonomy code is 261QE0800X. The provider is registered as an organization and their NPI record was last updated 13 years ago. The authorized official of this NPI record is Mary Beth Tamasy (Ceo)

NPI
1790912566
Provider Name
GI ENDOSCOPY CENTER OF NORTHERN VIRGINIA
Entity Type
Organization
Location Address
4660 KENMORE AVE SUITE 100 ALEXANDRIA, VA 22304
Location Phone
(703) 751-5763
Location Fax
(703) 370-4655
Mailing Address
PO BOX 17334 BALTIMORE, MD 21297
Mailing Phone
(703) 443-6717
Mailing Fax
(703) 370-4655
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-18-2009
Last Update Date
05-15-2013
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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

Clinic/Center Endoscopy

Taxonomy Code
261QE0800X
Type
Ambulatory Health Care Facilities

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

MARY BETH TAMASY

Authorized Official Title
CEO
Authorized Official Phone
(703) 737-6010

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
49D1103662
Facility Type
Ambulatory Surgery Center
Certificate Effective Date
August 14, 2025
Certificate Expiration Date
August 13, 2027
Laboratory Director
ROBERT J. HALLY
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Gi Endoscopy Center Of Northern Virginia 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 1790912566, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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
7
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
0
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
1
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 9 → 18 → 9 9 → 18 → 9 2 → 4 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 1 + 8 + 1 + 4 + 5 + 1 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1790912566.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Surgery
4660 KENMORE AVE, STE 220
ALEXANDRIA, VA 22304
Ophthalmology
4660 KENMORE AVE, SUITE 416
ALEXANDRIA, VA 22304
Urology
4660 KENMORE AVE, SUITE 735
ALEXANDRIA, VA 22304
Specialist
4660 KENMORE AVE, SUITE 900
ALEXANDRIA, VA 22304
Internal Medicine
4660 KENMORE AVE, SUITE 600
ALEXANDRIA, VA 22304
Dermatology
4660 KENMORE AVE, SUITE 500
ALEXANDRIA, VA 22304
Internal Medicine (Hematology & Oncology)
4660 KENMORE AVE, SUITE 1018
ALEXANDRIA, VA 22304
Internal Medicine
4660 KENMORE AVE, SUITE 710
ALEXANDRIA, VA 22304
Internal Medicine
4660 KENMORE AVE, SUITE 710
ALEXANDRIA, VA 22304
Audiologist-Hearing Aid Fitter
4660 KENMORE AVE, STE 409
ALEXANDRIA, VA 22304
Dentist (Oral and Maxillofacial Surgery)
4660 KENMORE AVE, SUITE # 204
ALEXANDRIA, VA 22304
Hearing Instrument Specialist
4660 KENMORE AVE, # 409
ALEXANDRIA, VA 22304
Surgery
4660 KENMORE AVE, SUITE 419
ALEXANDRIA, VA 22304
Obstetrics & Gynecology
4660 KENMORE AVE, STE 1100
ALEXANDRIA, VA 22304
Obstetrics & Gynecology
4660 KENMORE AVE, SUITE 1100
ALEXANDRIA, VA 22304
Obstetrics & Gynecology
4660 KENMORE AVE, SUITE 1100
ALEXANDRIA, VA 22304
Psychiatry & Neurology (Neurology)
4660 KENMORE AVE, SUITE 408
ALEXANDRIA, VA 22304
Internal Medicine (Gastroenterology)
4660 KENMORE AVE, SUITE 1206
ALEXANDRIA, VA 22304
Internal Medicine (Gastroenterology)
4660 KENMORE AVE, #305
ALEXANDRIA, VA 22304
Dentist (Periodontics)
4660 KENMORE AVE, SUITE 300
ALEXANDRIA, VA 22304

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790912566, enumerated as an "organization" on June 18, 2009.

The provider is located at 4660 KENMORE AVE SUITE 100 ALEXANDRIA, VA 22304 and the phone number is (703) 751-5763.

Clinic/Center with taxonomy code 261QE0800X and a focus in Endoscopy.