Quick answers
- Does John D. Zubkus accept Medicare assignment?
- Yes. Medicare's clinician data says John D. Zubkus 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 John D. Zubkus see?
- In 2024, CMS data shows 500 Original Medicare patients and 177,538 services for John D. Zubkus. This counts Original Medicare only and measures volume, not quality.
- What is John D. Zubkus's NPI number?
- 1518919000. 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 John D. Zubkus, 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 | 500 |
|---|---|
| Services billed to Medicare | 177,538 |
| Different services or procedures | 173 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, darbepoetin alfa, 1 microgram (non-esrd use) (J0881)27,060 services
- Injection, ferric carboxymaltose, 1 mg (J1439)21,000 services
- Injection, ferric derisomaltose, 10 mg (J1437)2,400 services
- Injection, denosumab, 1 mg (J0897)2,160 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)2,008 services
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).
- High blood pressure75%
- High cholesterol75%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)49%
- Arthritis46%
- Diabetes33%
- Chronic kidney disease33%
Hospitals where John D. Zubkus works
Medicare's Facility Affiliation Data lists John D. Zubkus 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.
- Saint Thomas Rutherford HospitalMurfreesboro, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440053
- Tristar Stonecrest Medical CenterSmyrna, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440227
Practice locations
Addresses where John D. Zubkus is enrolled with Medicare (CMS data updated October 2, 2026).
- 1589 Sparta St, Suite 306Mc Minnville, TN 37110 (931) 815‑0032
- 1750 Cedar Ln, Suite 200Tullahoma, TN 37388 (615) 333‑2481
- 322 22nd Ave N, Suite 130Nashville, TN 37203 (629) 236‑2055
Group practices
Medicare enrollment lists John D. Zubkus as a member of this group (CMS data updated October 2, 2026).
- Tennessee Oncology PLLC358 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Mc Minnville
Clinicians with the same Medicare primary specialty in Mc Minnville, TN — not a recommendation.
Other clinicians in Tennessee Oncology PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Southwestern Medical School At Dallas |
| Graduation year | 1997 (29 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) | 1518919000 |
| 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
- 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