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GASTROENTEROLOGY ASSOCIATES, PA
NPI 1699710608
Internal Medicine - Gastroenterology in Simpsonville, SC

Active since June 17, 2006CLIA 42D1054733 · Waiver
112 HOSPITAL DR, SIMPSONVILLE, SC 29681(864) 232-7338(864) 239-6645 Get Directions Write a Review

NPPES record last updated: May 8, 2009. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gastroenterology Associates, Pa NPPES

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

GASTROENTEROLOGY ASSOCIATES, PA (NPI 1699710608) is a healthcare organization registered as a gastroenterology in Simpsonville, South Carolina and active in the NPI registry since June 2006. The organization holds a CLIA Waiver certificate valid through May 29, 2028 and lists Rebecca K Swoyer, Administrator, as its authorized official.

NPPES Registry Identity

NPI1699710608
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameGASTROENTEROLOGY ASSOCIATES, PA
Location Address112 HOSPITAL DRSimpsonville, SC 29681-3226
Mailing AddressPo Box 8676Greenville, SC 29604-8676 · (864) 232-7338 · Fax (864) 239-6645
Phone(864) 232-7338
Fax(864) 239-6645
Organization SubpartNo
Authorized OfficialRebecca K SwoyerAdministrator · (864) 232-7338
Enumeration DateJune 17, 2006
Last NPPES UpdateMay 8, 2009
✔ NPI 1699710608 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
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.
112 HOSPITAL DR, Simpsonville, SC 29681
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Other Identifiers 2

Medicare PIN6373SC
MedicaidPA1845SC

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gastroenterology Associates, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

111

Medicare enrollment records show 111 clinicians reassign Medicare billing to Gastroenterology Associates, PA, which bills Medicare for the services they deliver. Of these, 49 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 4

Certified Registered Nurse Anesthetist (CRNA)75
Gastroenterology25
Nurse Practitioner8
Internal Medicine3

Nearest to this location (20)

See all 111
John Christ, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1477900827
201 CAROLINA POINT PKWY APT 1013
Greenville, SC 29607
(864) 320-9576
✔ Accepts Medicare7.8 mi
Amy Baker, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1508865734
7 INDEPENDENCE PT STE 300
Greenville, SC 29615
(864) 522-3700
✔ Accepts Medicare8.7 mi
James Belling, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1568480291
7 INDEPENDENCE PT STE 300
Greenville, SC 29615
(864) 522-3700
✔ Accepts Medicare8.7 mi
Gabriela Castro, DNP, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1922506450
7 INDEPENDENCE PT STE 300
Greenville, SC 29615
(864) 522-3700
✔ Accepts Medicare8.7 mi
Brandi Ford, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1689904013
7 INDEPENDENCE PT FL 4
Greenville, SC 29615
(864) 522-3700
✔ Accepts Medicare8.7 mi
William Howell, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1023108958
7 INDEPENDENCE PT STE 300
Greenville, SC 29615
(864) 522-3700
✔ Accepts Medicare8.7 mi
Scott Farley, MD
Gastroenterology
NPI 1487274429
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS9.7 mi
Alexander Kovalic, MD
Gastroenterology
NPI 1760836175
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.7 mi
Cindy Loeb, CRNP
Nurse Practitioner
NPI 1942889126
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.7 mi
Katelyn Madigan, MD
Gastroenterology
NPI 1104489798
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.7 mi
Beejal Vadhar, FNP-C
Nurse Practitioner
NPI 1740972827
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.7 mi
Olga Vitorsky, D.O.
Internal Medicine
NPI 1174055271
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.7 mi
Matthew Barnes, MD
Gastroenterology
NPI 1699118133
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.8 mi
Stephen Brackbill, MD
Gastroenterology
NPI 1437190428
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.8 mi
Christopher Fyock, MD
Gastroenterology
NPI 1073738696
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.8 mi
Julie Hammond, APRN
Nurse Practitioner
NPI 1437143856
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.8 mi
Anthony Horton
Internal Medicine
NPI 1700319167
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.8 mi
Tracy Luther, FNP
Nurse Practitioner
NPI 1164424222
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.8 mi
Tiffany Morgan, NP
Nurse Practitioner
NPI 1083913305
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.8 mi
Teresa Truman, APRN
Nurse Practitioner
NPI 1427319847
125 HALTON RD STE 200
Greenville, SC 29607
(864) 232-7338
✔ PECOS✔ Accepts Medicare9.8 mi
See all 111 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

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 42D1054733

Gastroenterology Associates PA · Simpsonville, SC
Active · expires May 29, 2028
CLIA Number42D1054733
Laboratory TypePhysician Office
Certificate Effective DateMay 30, 2026
Certificate Expiration DateMay 29, 2028
Laboratory DirectorPreston A. Jones
Laboratory Phone(864) 451-5051
Laboratory LocationGastroenterology Associates PA112 Hospital Dr Suite A, Simpsonville, SC 29681
CLIA data matches this NPI record on: Address Name
This certificate is issued to a laboratory to perform only waived tests.

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, PA's NPI number?

The NPI number for Gastroenterology Associates, PA is 1699710608. It was assigned to this organization in the NPPES registry on June 17, 2006.

Where is Gastroenterology Associates, PA located?

Gastroenterology Associates, PA is located at 112 Hospital Dr, Simpsonville, SC 29681. The listed phone number is (864) 232-7338.

What is Gastroenterology Associates, PA's specialty?

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

Is Gastroenterology Associates, PA enrolled in Medicare?

Yes. Gastroenterology Associates, PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gastroenterology Associates, PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 111 clinicians in 4 Medicare specialties reassign their Medicare billing to Gastroenterology Associates, PA. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Certified Registered Nurse Anesthetist (CRNA) (75), Gastroenterology (25) and Nurse Practitioner (8). Of these, 49 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Gastroenterology Associates, PA hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 42D1054733) is associated with this NPI, valid through May 29, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Gastroenterology Associates, PA was last updated on May 8, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 years 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.