Quick answers
- Which hospitals does John Diehl work at?
- Medicare's official clinician data lists John Diehl at 3 hospitals: Emory University Hospital, Emory University Hospital Midtown and Grady Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Diehl see patients?
- Medicare's clinician data lists 2 practice locations, including Atlanta, GA. Call before your visit to confirm the address.
- What is John Diehl's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Emergency Medicine.
- Does John Diehl accept Medicare assignment?
- Yes. Medicare's clinician data says John Diehl 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 Diehl?
- (404) 778-7525, as listed in official Medicare / NPI Registry data.
- What is John Diehl's NPI number?
- 1962905737. 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 Diehl works
Medicare's Facility Affiliation Data lists John Diehl at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Emory University HospitalAtlanta, GA · Acute Care Hospital · CCN 110010
- Emory University Hospital MidtownAtlanta, GA · Acute Care Hospital · CCN 110078
- Grady Memorial HospitalAtlanta, GA · Acute Care Hospital · CCN 110079
Practice locations
Addresses where John Diehl is enrolled with Medicare (CMS data updated 2026-10-02).
- 1365 Clifton Rd NEAtlanta, GA 30322 (404) 778‑7525
- 80 Jesse Hill Jr Dr SEAtlanta, GA 30303 (404) 616‑1000
Group practices
Medicare enrollment lists John Diehl as a member of these groups (CMS data updated 2026-10-02).
- The Emory Clinic Inc3,568 clinicians in the group
- Emory Medical Care Foundation Inc1,015 clinicians in the group
Specialties
- Internal Medicineprimary
- Emergency Medicinealso
Other internal medicine doctors in Atlanta
Clinicians with the same Medicare primary specialty in Atlanta, GA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Emory University School Of Medicine |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962905737 |
| 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