Quick answers
- Which hospitals does Marcus R. Lewis work at?
- Medicare's official clinician data lists Marcus R. Lewis at 5 hospitals: Atrium Health Cleveland, Mercy General Hospital, Mercy San Juan Medical Center, Methodist Hospital of Sacramento and Sierra Nevada Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marcus R. Lewis see patients?
- Medicare's clinician data lists 8 practice locations, including Grass Valley, CA, Folsom, CA and Shelby, NC. Call before your visit to confirm the address.
- What is Marcus R. Lewis's specialty?
- Medicare lists Hospitalist as the primary specialty.
- Does Marcus R. Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Marcus R. Lewis 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 R. Lewis?
- (530) 274-6677, as listed in official Medicare / NPI Registry data.
- What is Marcus R. Lewis's NPI number?
- 1750623690. 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 R. Lewis works
Medicare's Facility Affiliation Data lists Marcus R. Lewis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Atrium Health ClevelandShelby, NC · Acute Care Hospital · CCN 340021
- Mercy General HospitalSacramento, CA · Acute Care Hospital · CCN 050017
- Mercy San Juan Medical CenterCarmichael, CA · Acute Care Hospital · CCN 050516
- Methodist Hospital of SacramentoSacramento, CA · Acute Care Hospital · CCN 050590
- Sierra Nevada Memorial HospitalGrass Valley, CA · Acute Care Hospital · CCN 050150
Practice locations
Addresses where Marcus R. Lewis is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 155 Glasson Way, Suite L 10Grass Valley, CA 95945 (530) 274‑6677
- 1700 Prairie City RdFolsom, CA 95630 (916) 351‑4800
- 1730 Prairie City Rd, Suite 120Folsom, CA 95630 (916) 351‑4800
- 201 E Grover StShelby, NC 28150 (980) 487‑3000
- 4001 J StSacramento, CA 95819 (916) 453‑4414
Group practices
Medicare enrollment lists Marcus R. Lewis as a member of these groups (CMS data updated 2026-10-02).
- Carolinas Physicians Network Inc2,325 clinicians in the group
- Dignity Health Medical Foundation1,184 clinicians in the group
Specialties
- Hospitalistprimary
Other hospitalists in Grass Valley
Clinicians with the same Medicare primary specialty in Grass Valley, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1750623690 |
| 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