Dr. Nikhil Sebastian, MD
- Medicare services, 2024
- 2,216
- Medicare patients, 2024
- 267
- Part D claims, 2024
- 332
- Publications
- 32
- MIPS score, 2024
- 95
- Practice address
- 5665 Peachtree Dunwoody Road, Atlanta, GA 30342
- Practice phone
- Call (678) 843-7001
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Sebastian's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Nikhil Sebastian is a radiation oncologist in Atlanta, Georgia
Dr. Sebastian practices at Emory Saint Joseph's Hospital in Atlanta, Georgia, part of Emory University.
Dr. Sebastian's NPI, 1306231477, was assigned on April 5, 2015. Dr. Sebastian graduated from Ohio State University College of Medicine in 2015. Dr. Sebastian holds Georgia license 85777.
- NPI
- 1306231477NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375852577
- NPI enumeration date
- April 5, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (678) 843-7001
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nikhil Sebastian practices at Emory Saint Joseph's Hospital in Atlanta, Georgia
Dr. Sebastian's primary practice is Emory Saint Joseph's Hospital, at 5665 Peachtree Dunwoody Road, Atlanta, GA 30342 in Fulton County. The practice phone is (678) 843-7001.
- Emory Saint Joseph's Hospital5665 Peachtree Dunwoody Road, Atlanta, GA 30342 · Fulton CountyPhone(678) 843-7001
Source: Dmand AI Affiliation Data
Dr. Nikhil Sebastian is affiliated with 5 sites of care and 2 medical groups
Dr. Sebastian's primary practice is Emory Saint Joseph's Hospital in Atlanta, Georgia, part of Emory University. Dr. Sebastian is also affiliated with Emory University Hospital. The medical group on file is Emory Clinic. Dmand AI also links Dr. Sebastian to 3 more hospitals and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nikhil Sebastian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sebastian practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Emory Saint Joseph's Hospital | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nikhil Sebastian is one of 165 radiation oncologists in Georgia
Radiation oncology is Dr. Sebastian's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Sebastian is licensed in Georgia.
Specialties and state licenses
- Radiation oncology, GeorgiaPrimary
Radiation oncologists near Dr. Sebastian
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nikhil Sebastian billed Medicare for 2,216 services in 2024
CMS data shows 2,216 Medicare services from Dr. Sebastian across 18 procedure codes in 2024, for 267 Medicare patients. Medicare paid $726,226 for them.
Dr. Sebastian's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,9722024: 1,9163%
- Office and hospital visits
- 2023: 1402024: 23064%
- Surgery
- 2023: 392024: 7079%
Where Dr. Sebastian's Medicare services took place, 2024
- In an office1,70677%
- In a facility51023%
Dr. Sebastian compared with the Georgia median for radiation oncologists, 2024
- Dr. Sebastian
- Georgia median
- Medicare services
- 2,216vs 1,32867% above
- Medicare patients
- 267vs 15473% above
- Part D claims
- 255vs 445.8 times
Medians across 164 radiation oncologists in Georgia with Dmand AI profiles that report each measure.
Dr. Sebastian's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nikhil Sebastian treated 267 Medicare patients in 2024, average age 73
CMS counts 267 Medicare patients who saw Dr. Sebastian in 2024. The largest group is 65 to 74, with 142 patients. 75% of them have cancer, and 75% have high blood pressure. 6% are also on Medicaid. Their average risk score is 1.55, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Sebastian's median patient age at 74, with 26% women.
Dr. Sebastian's Medicare patients by age, 2024
Dr. Sebastian's Medicare patients by sex, 2024
- Women3613%
- Men23187%
Chronic conditions among Dr. Sebastian's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis39%
- Ischemic heart disease38%
- Diabetes30%
- Anxiety21%
- Atrial fibrillation20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sebastian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women26%
- Men73%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nikhil Sebastian wrote 332 Medicare Part D claims in 2024
In 2024, Dr. Sebastian wrote 332 Medicare Part D claims for 117 patients. 95% of them were for generic drugs. CMS names the drug for 255 of them, across 7 drugs with 11 or more claims each, at $43,155 in total drug cost. In 2023, CMS named 108 claims across 3 drugs.
Dr. Sebastian's Part D claims by kind of drug, 2024
- Generic315 claims95%
- Brand-name and other17 claims5%
Dr. Sebastian's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Sebastian's Part D claims, 2024
- Antibiotics19%62 of 332 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1082024: 255136%
Drugs named by CMS: 7 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Nikhil Sebastian scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Sebastian for performance year 2024, reported through an alternative payment model (APM). Dr. Sebastian accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sebastian as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Sebastian's MIPS scores, performance year 2024
- 95of 100Final score
- 80.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Nikhil Sebastian has 32 publications on record
Dmand AI links 32 papers to Dr. Sebastian, published from 2011 to 2025. 2020 was the busiest year, with 8. The most frequent topics are Radiosurgery, Prostatic Neoplasms and Lung Neoplasms. Dr. Sebastian has published most often in Cancer. Dr. Sebastian's most frequent co-authors are Terence Williams, MD, Vishal Ramesh Dhere, MD and Bruce Warren Hershatter, MD.
Dr. Sebastian's papers by year, 2012 to 2025
Topics Dr. Sebastian writes about most
- Radiosurgery
- Prostatic Neoplasms
- Lung Neoplasms
- Prostatectomy
- Carcinoma, Non-Small-Cell Lung
- Radiotherapy
- Androgen Antagonists
- Brachytherapy
Dr. Sebastian's most frequent co-authors
- Terence Williams, MD12 shared papers
- Vishal Ramesh Dhere, MD7 shared papers
- Bruce Warren Hershatter, MD6 shared papers
Recent publications by Dr. Sebastian
See who Dr. Sebastian researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sebastian works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nikhil Sebastian received $2,467 in industry payments from 2021 to 2023
CMS Open Payments shows 15 general payments to Dr. Sebastian from 3 drug and device companies from 2021 to 2023. Travel and lodging make up the largest share, 65% of the total. Boston Scientific Corporation paid the most, $1,180.
General payments to Dr. Sebastian by program year, 2021 to 2023
General payments to Dr. Sebastian by kind, 2021 to 2023
- Travel and lodging$1,60165%
- Food and beverage$86635%
Companies that paid Dr. Sebastian the most, 2021 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nikhil Sebastian graduated from Ohio State University College of Medicine
Dr. Sebastian graduated from Ohio State University College of Medicine in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nikhil Sebastian's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Nikhil Sebastian
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nikhil Sebastian's NPI number?
Dr. Nikhil Sebastian's NPI number is 1306231477. It was assigned on April 5, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Nikhil Sebastian?
Dr. Nikhil Sebastian is a radiation oncologist in Atlanta, Georgia. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Nikhil Sebastian practice?
Dr. Sebastian practices at 5665 Peachtree Dunwoody Road, Atlanta, GA 30342. Dr. Sebastian's primary practice is Emory Saint Joseph's Hospital in Atlanta, Georgia, part of Emory University. Dmand AI also links Dr. Sebastian to 3 hospitals and 1 medical group.
What is Dr. Nikhil Sebastian's office phone number?
The practice phone on file for Dr. Sebastian is (678) 843-7001.
What is Dr. Nikhil Sebastian's medical license number?
Dr. Sebastian holds Georgia license 85777.
Which hospitals is Dr. Nikhil Sebastian affiliated with?
Dr. Sebastian practices at Emory Saint Joseph's Hospital in Atlanta, Georgia. Dr. Sebastian is also affiliated with Emory University Hospital. Dmand AI links Dr. Sebastian to 3 more hospitals.
What medical group is Dr. Nikhil Sebastian part of?
Dr. Sebastian is linked to Emory Clinic. Dmand AI links Dr. Sebastian to 1 more medical group.
Does Dr. Nikhil Sebastian accept Medicare?
Yes. CMS data shows Dr. Sebastian billed Medicare for 2,216 services in 2024, and Dr. Sebastian accepts Medicare assignment.
Does Dr. Nikhil Sebastian offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Sebastian as offering telehealth services.
What is Dr. Nikhil Sebastian's MIPS score?
Dr. Sebastian's MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Nikhil Sebastian see?
CMS counts 267 Medicare patients who saw Dr. Sebastian in 2024, with an average age of 73.
What services does Dr. Nikhil Sebastian bill to Medicare?
In 2024, Dr. Sebastian's most billed Medicare services were radiation oncology (77014), radiation oncology (77523) and radiation oncology (77300).
Where did Dr. Nikhil Sebastian go to medical school?
Dr. Sebastian graduated from Ohio State University College of Medicine in 2015.
What drugs does Dr. Nikhil Sebastian prescribe most?
In 2024 Medicare Part D data, Dr. Sebastian's most prescribed drugs by claims were Tamsulosin HCl, Ciprofloxacin HCl and Ibuprofen.
Has Dr. Nikhil Sebastian received payments from drug or device companies?
CMS Open Payments shows $2,467 in general payments to Dr. Sebastian from 3 companies from 2021 to 2023. The largest total came from Boston Scientific Corporation.
How long has Dr. Nikhil Sebastian been practicing?
Dr. Sebastian graduated from medical school in 2015, 11 years ago.
Does Dr. Nikhil Sebastian do research?
Dmand AI links 32 publications to Dr. Sebastian, published from 2011 to 2025.
Who does Dr. Nikhil Sebastian publish with?
Dr. Sebastian's most frequent co-authors are Terence Williams, MD (12 shared papers), Vishal Ramesh Dhere, MD (7 shared papers) and Bruce Warren Hershatter, MD (6 shared papers).
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