SOUTHSIDE MEDICAL CENTER, INC.
NPI 1235123993
Clinic/Center - Federally Qualified Health Center (FQHC) in Atlanta, GA
About Southside Medical Center, Inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOUTHSIDE MEDICAL CENTER, INC. (NPI 1235123993), doing business as Southside Healthcare, is a healthcare organization registered as a federally qualified health center (fqhc) in Atlanta, Georgia and active in the NPI registry since September 2005. The organization lists Masresha Kassa, Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Southside Medical Center, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
89Medicare enrollment records show 89 clinicians reassign Medicare billing to Southside Medical Center, Inc., which bills Medicare for the services they deliver. Of these, 16 practice at this address and 44 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 16
Nearest to this location (20)
See all 89Source: 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 Southside Medical Center, Inc.'s NPI number?
The NPI number for Southside Medical Center, Inc. is 1235123993. It was assigned to this organization in the NPPES registry on September 8, 2005. The provider was formerly known as Southside Healthcare.
Where is Southside Medical Center, Inc. located?
Southside Medical Center, Inc. is located at 1046 Ridge Ave SW, Atlanta, GA 30315. The listed phone number is (404) 688-1350.
What is Southside Medical Center, Inc.'s specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Federally Qualified Health Center (FQHC), with taxonomy code 261QF0400X.
Is Southside Medical Center, Inc. enrolled in Medicare?
Yes. Southside Medical Center, Inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Southside Medical Center, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 89 clinicians in 16 Medicare specialties reassign their Medicare billing to Southside Medical Center, Inc.. 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 Nurse Practitioner (33), Obstetrics/Gynecology (13) and Internal Medicine (8). Of these, 16 practice at this address and 44 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Southside Medical Center, Inc. accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 8 other insurers list Southside Medical Center, Inc. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Southside Medical Center, Inc. was last updated on July 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Southside Medical Center, Inc. · NPI 1235123993
Federally Qualified Health Center (FQHC) organization in Atlanta, Georgia. Organization record, active in the CMS NPPES registry since September 8, 2005.
## Identity
- **NPI:** 1235123993 (Entity type: Organization)
- **Enumerated:** September 8, 2005
- **Primary specialty:** Clinic/Center - Federally Qualified Health Center (FQHC) · taxonomy 261QF0400X
- **Also known as:** Southside Healthcare (Former Legal Business Name)
- **Organization subpart:** No
- **Authorized official:** Masresha Kassa, CFO
## Practice location
- **Address:** 1046 RIDGE AVE SW, Atlanta, GA 30315-1640
- **Phone:** (404) 688-1350 · **Fax:** (404) 688-2962
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 89 clinicians in 16 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (33), Obstetrics/Gynecology (13), Internal Medicine (8); 16 practice at this address and 44 within 10 miles; [full list](https://npiprofile.com/npi/1235123993/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 9, 2025
- **Other identifiers:** Medicaid 000444056B (GA); Other 04092 (GA)
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Source: [NPI Profile](https://npiprofile.com/npi/1235123993) · Data from the CMS NPPES public registry.