Nikhil Sebastian, M.D.
NPI 1306231477 · Radiation Oncology Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nikhil Sebastian, M.D. is a Radiation Oncology Physician provider in Atlanta, GA (NPI 1306231477).
Provider details
- NPI number
- 1306231477
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,216 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Intermediate Proton Beam Radiation Treatment77523 | 537 | $980 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 500 | $117 |
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 132 | $45 |
| Continuing Radiation Therapy Consultation Per Week77336 | 113 | $87 |
| Calculation of Radiation Therapy Dose77300 | 102 | $64 |
| Calculation of Radiation Therapy Dose77300 | 81 | $33 |
| Radiation Treatment Management, 5 Treatment Sessions |
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 | 96 | 38 |
| Ciprofloxacin Hcl | 56 | 48 |
| Ibuprofen | 43 | 18 |
| Bicalutamide | 20 | 20 |
| Alfuzosin Hclbrand: Alfuzosin Hcl Er | 16 | — |
| Relugolixbrand: Orgovyx | 13 | — |
| Oxybutynin Chloridebrand: Oxybutynin Chloride Er | 11 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-04-05
- Last updated
- 2020-06-15
- Certified
- 2020-06-15
Frequently asked questions
- What is Nikhil Sebastian's NPI number?
- Nikhil Sebastian's National Provider Identifier (NPI) is 1306231477, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nikhil Sebastian's specialty?
- Nikhil Sebastian is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Nikhil Sebastian located?
- Nikhil Sebastian's practice location on file with NPPES is 550 Peachtree St Ne, Atlanta, GA 30308-2212.
- What is Nikhil Sebastian's phone number?
- The practice phone number listed in the NPPES registry for Nikhil Sebastian is (989) 295-5198.
- Does Nikhil Sebastian accept Medicare?
- Nikhil Sebastian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nikhil Sebastian's NPI active?
- Yes — Nikhil Sebastian's NPI (1306231477) is active in the NPPES registry as of the last update on 2020-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.