GHS EMERGENCY MEDICINE-OCONEE
NPI 1033580444
Emergency Medicine in Seneca, SC

Active since October 12, 2015
298 MEMORIAL DR, SENECA, SC 29672(864) 885-7156 Get Directions Write a Review

NPPES record last updated: October 12, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ghs Emergency Medicine-oconee NPPES

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

GHS EMERGENCY MEDICINE-OCONEE (NPI 1033580444) is a healthcare organization registered as an emergency medicine in Seneca, South Carolina and active in the NPI registry since October 2015. The organization lists Michael C Riordan, President/ceo, as its authorized official.

NPPES Registry Identity

NPI1033580444
Entity TypeOrganization
Primary Taxonomy207P00000X
Legal Business NameGREENVILLE HEALTH SYSTEM
Location Address298 MEMORIAL DRSeneca, SC 29672-9443
Mailing Address1 Independence Pt, Suite 212Greenville, SC 29615-4545 · (864) 797-6307
Organization SubpartNo
Authorized OfficialMichael C RiordanPresident/ceo · (864) 797-7808
Enumeration DateOctober 12, 2015
✔ NPI 1033580444 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedEmergency Medicine · Sports MedicineTaxonomy 207PS0010X
Also ListedFamily MedicineTaxonomy 207Q00000X
298 MEMORIAL DR, Seneca, SC 29672

Other Names 1

Doing Business AsGhs Emergency Medicine-oconee

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ghs Emergency Medicine-oconee is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

733

Medicare enrollment records show 733 clinicians reassign Medicare billing to Ghs Emergency Medicine-Oconee, which bills Medicare for the services they deliver. Of these, 45 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 50

Certified Registered Nurse Anesthetist (CRNA)147
Emergency Medicine56
Internal Medicine50
Anesthesiology47
Hospitalist42
Pediatric Medicine40
Nurse Practitioner39
Family Practice31
42 other specialties281

Nearest to this location (20)

See all 733
Family Practice
NPI 1689835787
301 MEMORIAL DR STE F
Seneca, SC 29672
(864) 885-7758
✔ PECOS✔ Accepts Medicare0.1 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1588634786
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7156
✔ PECOS✔ Accepts Medicare0.2 mi
Nurse Practitioner
NPI 1497176457
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7758
✔ PECOS✔ Accepts Medicare0.2 mi
Emergency Medicine
NPI 1255309746
298 MEMORIAL DR
Seneca, SC 29672
(864) 882-3351
✔ PECOS0.2 mi
Hospitalist
NPI 1831465764
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7758
✔ PECOS✔ Accepts Medicare0.2 mi
Hospitalist
NPI 1760502413
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7758
✔ PECOS✔ Accepts Medicare0.2 mi
Nurse Practitioner
NPI 1104216233
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7758
✔ PECOS✔ Accepts Medicare0.2 mi
Family Practice
NPI 1841266400
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7758
✔ PECOS✔ Accepts Medicare0.2 mi
Internal Medicine
NPI 1720079544
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7758
✔ PECOS✔ Accepts Medicare0.2 mi
Emergency Medicine
NPI 1194793661
298 MEMORIAL DR
Seneca, SC 29672
(864) 882-3351
✔ PECOS✔ Accepts Medicare0.2 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1962608687
298 MEMORIAL DR
Seneca, SC 29672
(864) 482-3100
✔ Accepts Medicare0.2 mi
Hospitalist
NPI 1700171618
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7758
✔ PECOS✔ Accepts Medicare0.2 mi
Emergency Medicine
NPI 1386613065
298 MEMORIAL DR
Seneca, SC 29672
(864) 882-3351
✔ PECOS0.2 mi
General Surgery
NPI 1134173008
298 MEMORIAL DR
Seneca, SC 29672
(864) 482-3230
✔ PECOS✔ Accepts Medicare0.2 mi
Anesthesiology
NPI 1508968934
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7532
✔ PECOS✔ Accepts Medicare0.2 mi
Pediatric Medicine
NPI 1275739427
298 MEMORIAL DR
Seneca, SC 29672
(864) 885-7758
✔ PECOS0.2 mi
Hematology/Oncology
NPI 1679740211
131 LILA DOYLE DR
Seneca, SC 29672
(864) 888-3717
✔ PECOS✔ Accepts Medicare0.2 mi
Otolaryngology
NPI 1518181148
215 STORK WAY
Seneca, SC 29678
(864) 800-0100
✔ PECOS✔ Accepts Medicare0.5 mi
Obstetrics/Gynecology
NPI 1851419394
103 CARTER PARK DR SUITE A
Seneca, SC 29678
(864) 482-2360
✔ PECOS✔ Accepts Medicare0.6 mi
Obstetrics/Gynecology
NPI 1932153285
103 CARTER PARK DR SUITE A
Seneca, SC 29678
(864) 482-2360
✔ PECOS0.6 mi
See all 733 clinicians

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

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 Greenville Health System's NPI number?

The NPI number for Greenville Health System is 1033580444. It was assigned to this organization in the NPPES registry on October 12, 2015. The provider is doing business as Ghs Emergency Medicine-Oconee.

Where is Greenville Health System located?

Greenville Health System is located at 298 Memorial Dr, Seneca, SC 29672. The listed phone number is (864) 885-7156.

What is Greenville Health System's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Greenville Health System enrolled in Medicare?

Yes. Greenville Health System is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Greenville Health System?

According to the CMS Revalidation Reassignment List (October 2026 release), 733 clinicians in 50 Medicare specialties reassign their Medicare billing to Greenville Health System. 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) (147), Emergency Medicine (56) and Internal Medicine (50). Of these, 45 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Greenville Health System was last updated on October 12, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.