Quick answers
- Which hospitals does John Grimm work at?
- Medicare's official clinician data lists John Grimm at 5 hospitals: Atrium Health Cleveland, Atrium Health Pineville, Atrium Health Union, Carolinas Medical Center-Northeast and Carolinas Medical Center/Behav Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Grimm see patients?
- Medicare's clinician data lists 33 practice locations, including Charlotte, NC, Matthews, NC and Concord, NC. Call before your visit to confirm the address.
- What is John Grimm's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does John Grimm accept Medicare assignment?
- Yes. Medicare's clinician data says John Grimm 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 John Grimm?
- (704) 362-1945, as listed in official Medicare / NPI Registry data.
- What is John Grimm's NPI number?
- 1164606604. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Grimm works
Medicare's Facility Affiliation Data lists John Grimm 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
- Atrium Health PinevilleCharlotte, NC · Acute Care Hospital · CCN 340098
- Atrium Health UnionMonroe, NC · Acute Care Hospital · CCN 340130
- Carolinas Medical Center-NortheastConcord, NC · Acute Care Hospital · CCN 340001
- Carolinas Medical Center/Behav HealthCharlotte, NC · Acute Care Hospital · CCN 340113
Practice locations
Addresses where John Grimm is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 33; the Medicare profile lists all.
- 1000 Blythe BlvdCharlotte, NC 28203 (704) 362‑1945
- 1000 Healing WayMatthews, NC 28104 (800) 821‑1535
- 1025 Morehead Medical Dr, Suite 100Charlotte, NC 28204 (704) 326‑1945
- 1045 Negateway NE CtConcord, NC 28025 (704) 362‑1945
- 1045 Negateway NectCocnord, NC 28025 (704) 334‑7800
Group practices
Medicare enrollment lists John Grimm as a member of this group (CMS data updated 2026-10-02).
- Charlotte Radiology P A227 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Charlotte
Clinicians with the same Medicare primary specialty in Charlotte, NC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164606604 |
| 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