Quick answers
- Which hospitals does Marcus Sims work at?
- Medicare's official clinician data lists Marcus Sims at 5 hospitals: Northside Hospital Gwinnett, Piedmont Athens Regional Medical Center, Piedmont Eastside Medical Center, Piedmont Hospital, Inc and Piedmont Walton Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marcus Sims see patients?
- Medicare's clinician data lists 4 practice locations, including Lawrenceville, GA, Conyers, GA and Loganville, GA. Call before your visit to confirm the address.
- What is Marcus Sims's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Interventional Cardiology.
- Does Marcus Sims accept Medicare assignment?
- Yes. Medicare's clinician data says Marcus Sims accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Marcus Sims?
- (678) 312-1000, as listed in official Medicare / NPI Registry data.
- What is Marcus Sims's NPI number?
- 1427199546. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marcus Sims works
Medicare's Facility Affiliation Data lists Marcus Sims at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northside Hospital GwinnettLawrenceville, GA · Acute Care Hospital · CCN 110087
- Piedmont Athens Regional Medical CenterAthens, GA · Acute Care Hospital · CCN 110074
- Piedmont Eastside Medical CenterSnellville, GA · Acute Care Hospital · CCN 110192
- Piedmont Hospital, IncAtlanta, GA · Acute Care Hospital · CCN 110083
- Piedmont Walton HospitalMonroe, GA · Acute Care Hospital · CCN 110046
Practice locations
Addresses where Marcus Sims is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Medical Ctr BlvdLawrenceville, GA 30046 (678) 312‑1000
- 1412 Milstead Ave NEConyers, GA 30012 (770) 918‑3000
- 3435 Hwy 81, Suite 200Loganville, GA 30052 (770) 736‑6300
- 766 Walther Rd, Suite 100Lawrenceville, GA 30046 (770) 736‑6300
Group practices
Medicare enrollment lists Marcus Sims as a member of this group (CMS data updated 2026-10-02).
- Piedmont Cardiology of Atlanta, LLC481 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Georgia →
Other cardiologists in Lawrenceville
Clinicians with the same Medicare primary specialty in Lawrenceville, GA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Morehouse School Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427199546 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians