Quick answers
- Does Adam J. Leestma accept Medicare assignment?
- Yes. Medicare's clinician data says Adam J. Leestma accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Adam J. Leestma's NPI number?
- 1891230140. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Adam J. Leestma works
Medicare's Facility Affiliation Data lists Adam J. Leestma at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Franciscan Health Crown PointCrown Point, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150126
- Franciscan Health Rensselaer, IncRensselaer, IN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 151324
- Northwest Health - PorterValparaiso, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150035
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
- Pinnacle HospitalCrown Point, IN · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 150166
Practice locations
Addresses where Adam J. Leestma is enrolled with Medicare (CMS data updated October 2, 2026).
- 519 N Halleck StDemotte, IN 46310 (219) 987‑7750
Group practices
Medicare enrollment lists Adam J. Leestma as a member of this group (CMS data updated October 2, 2026).
- Leestma Medical Clinic, Inc3 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Demotte
Clinicians with the same Medicare primary specialty in Demotte, IN — not a recommendation.
Other clinicians in Leestma Medical Clinic, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891230140 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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