Quick answers
- Does Zachary S. Mayo accept Medicare assignment?
- Yes. Medicare's clinician data says Zachary S. Mayo 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 Zachary S. Mayo's NPI number?
- 1639632839. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Zachary S. Mayo works
Medicare's Facility Affiliation Data lists Zachary S. Mayo 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.
- Cookeville Regional Medical CenterCookeville, TN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 440059
Practice locations
Addresses where Zachary S. Mayo is enrolled with Medicare (CMS data updated October 2, 2026).
- 101 Physicians Way, Suite 111Lebanon, TN 37090 (615) 235‑8700
Group practices
Medicare enrollment lists Zachary S. Mayo as a member of this group (CMS data updated October 2, 2026).
- Lebanon Radiation Oncology Center, LLC12 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Lebanon
Clinicians with the same Medicare primary specialty in Lebanon, TN — not a recommendation.
Other clinicians in Lebanon Radiation Oncology Center, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Iowa, Rj & L Carver College Of Medicine |
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639632839 |
| 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