1. Home
  2. Directory
  3. Virginia
  4. Gainesville
  5. Internal Medicine
  6. NPI Profile

GASTROENTEROLOGY ASSOCIATES VA, LLC
NPI 1518990472
Internal Medicine - Gastroenterology in Gainesville, VA

Active since July 07, 2006CLIA Certified · 7 labs
7915 LAKE MANASSAS DR STE 302, GAINESVILLE, VA 20155(571) 248-0653(571) 248-0658 Get Directions Write a Review

NPPES record last updated: February 10, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Feb 3, 2026, Sep 3, 2025, Mar 10, 2025 and 1 more (4 updates tracked since 2024).

About Gastroenterology Associates Va, Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GASTROENTEROLOGY ASSOCIATES VA, LLC (NPI 1518990472), doing business as Colon Stomach & Liver Center, is a healthcare organization registered as a gastroenterology in Gainesville, Virginia and active in the NPI registry since July 2006. The organization holds 7 active CLIA laboratory certificates, maintains 8 additional practice locations, and lists Kristina Materna, Director, Credentialing, as its authorized official.

NPPES Registry Identity

NPI1518990472
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameGASTROENTEROLOGY ASSOCIATES VA, LLC
Location Address7915 LAKE MANASSAS DR STE 302Gainesville, VA 20155-3260
Mailing AddressPo Box 381468Germantown, TN 38183-1468 · Fax (901) 328-1355
Phone(571) 248-0653
Fax(571) 248-0658
Organization SubpartNo
Authorized OfficialKristina MaternaDirector, Credentialing · (901) 377-8219
Enumeration DateJuly 7, 2006
Last NPPES UpdateFebruary 10, 20264 updates tracked since enumeration
NPPES CertifiedFebruary 10, 2026
✔ NPI 1518990472 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in VA · 0101027526
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
7915 LAKE MANASSAS DR STE 302, Gainesville, VA 20155
Open in Google Maps ↗

Other Names 3

Doing Business AsColon Stomach & Liver Center
Doing Business AsGastroenterology Associates, Pc
Doing Business AsTidewater Gastroenterology

Secondary Practice Locations 8

Location 1661 Independence Pkwy Ste 120Chesapeake, VA 23320-5114 · Phone (757) 547-0798
Location 219455 Deerfield Ave Ste 205Lansdowne, VA 20176-8102 · Phone (703) 723-3670
Location 319455 Deerfield Ave Ste 201Lansdowne, VA 20176-8102 · Phone (703) 723-3670
Location 48640 Sudley Rd Ste 201Manassas, VA 20110-4404 · Phone (703) 368-6819
Location 5170 W Shirley Ave Ste 205Warrenton, VA 20186-3083 · Phone (540) 347-2470
Location 619455 Deerfield Ave Ste 202Lansdowne, VA 20176-8102 · Phone (703) 723-3670
Location 724430 Stone Springs Blvd Ste 250Dulles, VA 20166-2268 · Phone (703) 723-3670 ext. 33670
Location 85701 Cleveland St Ste 100Virginia Beach, VA 23462-1788 · Phone (757) 547-0798

Other Identifiers 1

Medicaid1518990472VA

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA 7

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 49D0878842

Gastroenterology Associates, PC · Manassas, VA
Active · expires Nov 7, 2027
CLIA Number49D0878842
Laboratory TypePhysician Office
Certificate Effective DateNovember 8, 2025
Certificate Expiration DateNovember 7, 2027
Laboratory DirectorEdward C. Kim
Laboratory Phone(571) 248-0653
Laboratory LocationGastroenterology Associates, PC8640 Sudley Road, Suite 201, Manassas, VA 20110
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 49D0899052

Gastroenterology Associates, PC · Warrenton, VA
Active · expires Mar 19, 2027
CLIA Number49D0899052
Laboratory TypePhysician Office
Certificate Effective DateMarch 20, 2025
Certificate Expiration DateMarch 19, 2027
Laboratory DirectorJin H. Park
Laboratory Phone(571) 248-0653
Laboratory LocationGastroenterology Associates, PC170 W Shirley Ave Suite 205, Warrenton, VA 20186
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 49D1095048

Gastroenterology Associates Pc,dba Tidewater Gastro · Virginia Beach, VA
Active · expires Feb 1, 2027
CLIA Number49D1095048
Laboratory TypePhysician Office
Certificate Effective DateFebruary 2, 2025
Certificate Expiration DateFebruary 1, 2027
Laboratory DirectorFelix P. Tiongco
Laboratory Phone(757) 547-0798
Laboratory LocationGastroenterology Associates Pc,dba Tidewater Gastro5701 Cleveland Street - Suite 100, Virginia Beach, VA 23462
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 49D0723022

Gastroenterology Associates, PC, Dba Tidewater Gastro · Chesapeake, VA
Active · expires Aug 31, 2026
CLIA Number49D0723022
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2024
Certificate Expiration DateAugust 31, 2026
Laboratory DirectorFelix P. Tiongco
Laboratory Phone(757) 547-0798
Laboratory LocationGastroenterology Associates, PC, Dba Tidewater Gastro661 Independence Parkway, Suite 120, Chesapeake, VA 23320
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 49D1091493

Gastreonterology Associates, PC · Gainesville, VA
Active · expires Jan 10, 2028
CLIA Number49D1091493
Laboratory TypePhysician Office
Certificate Effective DateJanuary 11, 2026
Certificate Expiration DateJanuary 10, 2028
Laboratory DirectorDarren Baroni
Laboratory Phone(571) 248-0653
Laboratory LocationGastreonterology Associates, PC7915 Lake Manassas Drive, Suite 302, Gainesville, VA 20155
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Compliance 49D2021788

Gastroenterology Associates Of Tidewater · Chesapeake, VA
Active · expires Sep 11, 2027
CLIA Number49D2021788
Laboratory TypePhysician Office
Certificate Effective DateSeptember 12, 2025
Certificate Expiration DateSeptember 11, 2027
Laboratory DirectorLionel N. Jacob
Laboratory Phone(757) 547-0798
Laboratory LocationGastroenterology Associates Of Tidewater661 Independance Pkwy, Suite 120, Chesapeake, VA 23320
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GAPC ANESTHESIA, LLC
Anesthesiology
7915 LAKE MANASSAS DR STE 302
GAINESVILLE, VA 20155
Prince William County (571) 248-0653
GREATER WASHINGTON ANESTHESIA ASSOCIATES, LLC
Anesthesiology
7915 LAKE MANASSAS DR STE 302
GAINESVILLE, VA 20155
Prince William County (571) 248-0653
DR. BRIAN BYUNGJIN PARK M.D.
Internal Medicine (Gastroenterology)
7915 LAKE MANASSAS DR STE 302
GAINESVILLE, VA 20155
Prince William County (571) 248-0653
DR. MYLAN SATCHI M.D.
Internal Medicine (Gastroenterology)
7915 LAKE MANASSAS DR STE 302
GAINESVILLE, VA 20155
Prince William County (571) 248-0653
CANDACE K HALL FNP-C
Nurse Practitioner (Family)
7915 LAKE MANASSAS DR STE 302
GAINESVILLE, VA 20155
Prince William County (571) 248-0653
DR. KARLENY I. BELTRAN ALVARADO DNP, FNP-BC
Nurse Practitioner (Family)
7915 LAKE MANASSAS DR STE 302
GAINESVILLE, VA 20155
Prince William County (571) 248-0653

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gastroenterology Associates VA, LLC's NPI number?

The NPI number for Gastroenterology Associates VA, LLC is 1518990472. It was assigned to this organization in the NPPES registry on July 7, 2006. The provider is doing business as Colon Stomach & Liver Center, Gastroenterology Associates, PC and Tidewater Gastroenterology.

Where is Gastroenterology Associates VA, LLC located?

Gastroenterology Associates VA, LLC is located at 7915 Lake Manassas Dr Ste 302, Gainesville, VA 20155. The listed phone number is (571) 248-0653.

What is Gastroenterology Associates VA, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Does Gastroenterology Associates VA, LLC hold CLIA laboratory certificates?

Yes. 7 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Gastroenterology Associates VA, LLC was last updated on February 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.