John Boys, M.D.
NPI 1386645240 · Radiation Oncology Physician · Greeneville, TN
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Boys, M.D. is a Radiation Oncology Physician provider in Greeneville, TN (NPI 1386645240).
Provider details
- NPI number
- 1386645240
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD0000024406 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,309 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 418 | $41 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 211 | $175 |
| Design and Construction of Complex Radiation Treatment Device77334 | 153 | $56 |
| Calculation of Radiation Therapy Dose77300 | 146 | $30 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $90 |
| Complex Radiation Therapy Planning77263 | 55 | $155 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$180 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-02
- Last updated
- 2021-08-26
- Certified
- 2021-08-26
Frequently asked questions
- What is John Boys's NPI number?
- John Boys's National Provider Identifier (NPI) is 1386645240, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Boys's specialty?
- John Boys is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Boys located?
- John Boys's practice location on file with NPPES is 1420 Tusculum Blvd, Greeneville, TN 37745-4279.
- What is John Boys's phone number?
- The practice phone number listed in the NPPES registry for John Boys is (423) 787-5041.
- Does John Boys accept Medicare?
- John Boys is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Boys's NPI active?
- Yes — John Boys's NPI (1386645240) is active in the NPPES registry as of the last update on 2021-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.