Quick answers
- Does Charles W. Matias accept Medicare assignment?
- Yes. Medicare's clinician data says Charles W. Matias 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 Charles W. Matias's NPI number?
- 1427631852. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Charles W. Matias works
Medicare's Facility Affiliation Data lists Charles W. Matias 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.
- Indiana University HealthIndianapolis, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150056
Practice locations
Addresses where Charles W. Matias is enrolled with Medicare (CMS data updated October 2, 2026).
- 355 W 16th St, Suite 2800Indianapolis, IN 46202 (888) 484‑3258
Group practices
Medicare enrollment lists Charles W. Matias as a member of this group (CMS data updated October 2, 2026).
- IU Health Medical Group LLC4,462 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Indianapolis
Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.
Other clinicians in IU Health Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 2021 (5 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1427631852 |
| 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