Quick answers
- Which hospitals does Brian Grieb work at?
- Medicare's official clinician data lists Brian Grieb at 1 hospital: Tristar Centennial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brian Grieb see patients?
- Medicare's clinician data lists 1 practice location in Nashville, TN. Call before your visit to confirm the address.
- What is Brian Grieb's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does Brian Grieb accept Medicare assignment?
- Yes. Medicare's clinician data says Brian Grieb accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Brian Grieb?
- (615) 312-3333, as listed in official Medicare / NPI Registry data.
- What is Brian Grieb's NPI number?
- 1609220714. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brian Grieb works
Medicare's Facility Affiliation Data lists Brian Grieb at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Tristar Centennial Medical CenterNashville, TN · Acute Care Hospital · CCN 440161
Practice locations
Addresses where Brian Grieb is enrolled with Medicare (CMS data updated 2026-10-02).
- 2004 Hayes St, Suite 350Nashville, TN 37203 (615) 312‑3333
Group practices
Medicare enrollment lists Brian Grieb as a member of this group (CMS data updated 2026-10-02).
- Tennessee Oncology PLLC358 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Nashville
Clinicians with the same Medicare primary specialty in Nashville, TN — not a recommendation.
Clinician information
| Medical school | Vanderbilt University School Of Medicine |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609220714 |
| 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