John Stewart, M.D.
NPI 1427251412 · Radiation Oncology Physician · Augusta, GA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Stewart, M.D. is a Radiation Oncology Physician provider in Augusta, GA (NPI 1427251412).
Provider details
- NPI number
- 1427251412
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 65901 (GA)
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
19 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
2,227 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) |
|---|---|---|
| Stereoscopic X-Ray Guidance for Localization of Target Volume for the Delivery of Radiation TherapyG6002 | 607 | $19 |
| Calculation of Radiation Therapy Dose77300 | 418 | $31 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 254 | $42 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 235 | $181 |
| Design and Construction of Complex Radiation Treatment Device77334 | 153 | $57 |
| Complex Radiation Therapy Planning77263 | 83 | $160 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 69 | 17 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 42 | 40 |
| Ciprofloxacin Hcl | 41 | 41 |
| Diazepam | 20 | 20 |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous | 16 | — |
| Dexamethasone | 13 | — |
| Betamethasone Dipropionate | 12 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$205 across 3 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
- 2007-06-07
- Last updated
- 2013-10-31
Frequently asked questions
- What is John Stewart's NPI number?
- John Stewart's National Provider Identifier (NPI) is 1427251412, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Stewart's specialty?
- John Stewart is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Stewart located?
- John Stewart's practice location on file with NPPES is 821 St. Sebastian Way, Augusta, GA 30912-2615.
- What is John Stewart's phone number?
- The practice phone number listed in the NPPES registry for John Stewart is (706) 721-2971.
- Does John Stewart accept Medicare?
- John Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Stewart's NPI active?
- Yes — John Stewart's NPI (1427251412) is active in the NPPES registry as of the last update on 2013-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.