Quick answers
- Does Grant T. Gilliam accept Medicare assignment?
- Yes. Medicare's clinician data says Grant T. Gilliam 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.
- How many Medicare patients does Grant T. Gilliam see?
- In 2024, CMS data shows 13 Original Medicare patients and 346 services for Grant T. Gilliam. This counts Original Medicare only and measures volume, not quality.
- What is Grant T. Gilliam's NPI number?
- 1730659301. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Grant T. Gilliam, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 13 |
|---|---|
| Services billed to Medicare | 346 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 45 |
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- Anxiety75%
Practice locations
Addresses where Grant T. Gilliam is enrolled with Medicare (CMS data updated October 2, 2026).
- 550 S Adams StBloomington, IN 47403 (812) 333‑6324
- 645 S Rogers StBloomington, IN 47403 (812) 339‑1691
- 720 N Marr RdColumbus, IN 47201 (812) 314‑3400
Group practices
Medicare enrollment lists Grant T. Gilliam as a member of these groups (CMS data updated October 2, 2026).
- Centerstone of Indiana Inc115 clinicians in the group
- Stone Belt Arc, Inc.7 clinicians in the group
Specialties
- Mental Health Counselorprimary
Other mental health counselors in Bloomington
Clinicians with the same Medicare primary specialty in Bloomington, IN — not a recommendation.
Other clinicians in Centerstone of Indiana Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1730659301 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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