Quick answers
- Which hospitals does Arjun Natarajan work at?
- Medicare's official clinician data lists Arjun Natarajan at 3 hospitals: Advocate Christ Hospital & Medical Center, Advocate Good Samaritan Hospital and Advocate Sherman Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Arjun Natarajan see patients?
- Medicare's clinician data lists 2 practice locations, including Aurora, IL and Naperville, IL. Call before your visit to confirm the address.
- What is Arjun Natarajan's specialty?
- Medicare lists Medical Oncology as the primary specialty.
- Does Arjun Natarajan accept Medicare assignment?
- Yes. Medicare's clinician data says Arjun Natarajan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Arjun Natarajan offer telehealth?
- Medicare's clinician data says Arjun Natarajan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is Arjun Natarajan's NPI number?
- 1144682642. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Arjun Natarajan works
Medicare's Facility Affiliation Data lists Arjun Natarajan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · CCN 140208
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · CCN 140288
- Advocate Sherman HospitalElgin, IL · Acute Care Hospital · CCN 140030
Practice locations
Addresses where Arjun Natarajan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1221 N Highland AveAurora, IL 60506
- 1508 Aurora AveNaperville, IL 60540
Group practices
Medicare enrollment lists Arjun Natarajan as a member of this group (CMS data updated 2026-10-02).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in Aurora
Clinicians with the same Medicare primary specialty in Aurora, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1144682642 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians