Quick answers
- Which hospitals does John Leiner work at?
- Medicare's official clinician data lists John Leiner at 2 hospitals: Blessing Hospital and University of Virginia Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Leiner see patients?
- Medicare's clinician data lists 4 practice locations, including Quincy, IL. Call before your visit to confirm the address.
- What is John Leiner's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John Leiner accept Medicare assignment?
- Yes. Medicare's clinician data says John Leiner 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 Leiner?
- (217) 223-8400, as listed in official Medicare / NPI Registry data.
- What is John Leiner's NPI number?
- 1962571596. 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 Leiner works
Medicare's Facility Affiliation Data lists John Leiner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Blessing HospitalQuincy, IL · Acute Care Hospital · CCN 140015
- University of Virginia Medical CenterCharlottesville, VA · Acute Care Hospital · CCN 490009
Practice locations
Addresses where John Leiner is enrolled with Medicare (CMS data updated 2026-10-02).
- 1005 Broadway StQuincy, IL 62301 (217) 223‑8400
- 4800 Maine StQuincy, IL 62305 (217) 224‑6423
- 927 Broadway StQuincy, IL 62301
- 927 Broadway St, Suite 132Quincy, IL 62301 (217) 223‑8400
Group practices
Medicare enrollment lists John Leiner as a member of this group (CMS data updated 2026-10-02).
- Blessing Hospital421 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Quincy
Clinicians with the same Medicare primary specialty in Quincy, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962571596 |
| 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