Nikhil Sebastian, M.D.
Radiation Oncology Physician · Atlanta, GA
Nikhil Sebastian, M.D. is a radiation oncology physician with a practice address in Atlanta, Georgia, and NPI 1306231477, issued on Apr 5, 2015. Check the license (Georgia 85777, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Nikhil Sebastian
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 85777 GA
Self-reported in NPPES; status is on the state search - Practice location
- 550 Peachtree St NE, Atlanta, GA 30308
- Phone
- (989) 295-5198
- Enumerated
- Apr 5, 2015
- Record last updated
- Jun 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200909001894); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 180 in Georgia → Look up another NPI →
Also registered at 550 Peachtree St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abimbola Abiodun, P.A.Physician Assistant1487749867
- Rubab AhmadPhysician Assistant1700390127
- Shahid Ahmed, MBBSHematology & Oncology Physician1841555083
- Malcolm Aikens, NPGerontology Nurse Practitioner1649768920
- Amanda Ailleo, NP-CFamily Nurse Practitioner1366935520
- Valery Akopov, M.D.Internal Medicine Physician1417975871
Verify Nikhil Sebastian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 85777Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average radiation oncology physician in 2024
332 Medicare Part D claims for 117 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl96 claims
- Ciprofloxacin Hcl56 claims
- Ibuprofen43 claims
- Bicalutamide20 claims
- Alfuzosin Hcl Er16 claims
- Orgovyx13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 92.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Georgia Protoncare Center Inc.Atlanta, GA
- The Emory Clinic IncAtlanta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nikhil Sebastian among 180 radiation oncology physician records in Georgia
Nikhil Sebastian, M.D. is one of 180 radiation oncology physician records with a practice address in Georgia. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 16% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2015 · median 2004 among the 142 with a school on file
- Record last updated2020 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Georgia
There are 180 radiation oncology physician records in Georgia.
All 180 in Georgia → Every provider in Atlanta → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Naba Ali, MDAtlanta, GA 303081023577350
- James Bates, M.D.Atlanta, GA 303081659767739
- Kamaria LeeAtlanta, GA 303081467036715
- Mark McDonald, M.D.Atlanta, GA 303081144408287
- Sagar Patel, M.D.Atlanta, GA 303081861830234
- Soumon Rudra, M.D.Atlanta, GA 303081801282850
- Kamran Salari, MDAtlanta, GA 303081699333252
- William Stokes, MDAtlanta, GA 303081811330731
Common questions
What is Nikhil Sebastian, M.D.'s NPI number?
Nikhil Sebastian, M.D.'s National Provider Identifier (NPI) is 1306231477, issued on Apr 5, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nikhil Sebastian, M.D. located?
The NPPES record lists a practice address at 550 Peachtree St NE, Atlanta, GA, 30308. Phone: (989) 295-5198. Providers update this record themselves, so call before visiting.
How can I verify Nikhil Sebastian, M.D.'s license?
NPPES lists Georgia license number 85777, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nikhil Sebastian, M.D. prescribe under Medicare Part D?
In 2024, Nikhil Sebastian, M.D. had 332 Medicare Part D claims for 117 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Nikhil Sebastian, M.D.'s MIPS final score?
The 2023 MIPS final score is 92.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.