Quick answers
- Does Donald H. Trainor Jr. accept Medicare assignment?
- Medicare's clinician data says Donald H. Trainor Jr. may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Donald H. Trainor Jr.'s NPI number?
- 1043207244. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Donald H. Trainor Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 2855 N Keystone Ave, Suite 120Indianapolis, IN 46218
Group practices
Medicare enrollment lists Donald H. Trainor Jr. as a member of this group (CMS data updated October 2, 2026).
- Healthnet Inc81 clinicians in the group
Specialties
- Internal Medicineprimary
- Pediatric Medicinealso
Other internal medicine doctors in Indianapolis
Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.
Other clinicians in Healthnet Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Jc Edwards School Of Medicine, Marshall University |
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1043207244 |
| 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
- 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