Quick answers
- Which hospitals does John K. Hearn work at?
- Medicare's official clinician data lists John K. Hearn at 2 hospitals: Mercy Hospital Joplin and Mercy Hospital Stoddard. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John K. Hearn see patients?
- Medicare's clinician data lists 4 practice locations, including St Louis, MO, Belleville, IL and Saint Louis, MO. Call before your visit to confirm the address.
- What is John K. Hearn's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does John K. Hearn accept Medicare assignment?
- Medicare's clinician data says John K. Hearn may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does John K. Hearn offer telehealth?
- Medicare's clinician data says John K. Hearn offers telehealth services. Ask the office which visits can be done by video or phone.
- What is John K. Hearn's NPI number?
- 1912211343. 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 K. Hearn works
Medicare's Facility Affiliation Data lists John K. Hearn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital JoplinJoplin, MO · Acute Care Hospital · CCN 260001
- Mercy Hospital StoddardDexter, MO · Acute Care Hospital · CCN 260160
Practice locations
Addresses where John K. Hearn is enrolled with Medicare (CMS data updated 2026-10-02).
- 1831 Chestnut St, Suite 650St Louis, MO 63103
- 218 A W Main St DBelleville, IL 62220
- 9735 Landmark Pkwy Dr, Suite 201Saint Louis, MO 63127
- PO Box, Suite 505315Saint Louis, MO 63150
Specialties
- Psychiatryprimary
Other psychiatrists in Missouri
Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In New Orleans |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1912211343 |
| 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