Quick answers
- Which hospitals does Thandavababu Chelliah work at?
- Medicare's official clinician data lists Thandavababu Chelliah at 1 hospital: South Brooklyn Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thandavababu Chelliah see patients?
- Medicare's clinician data lists 1 practice location in Brooklyn, NY. Call before your visit to confirm the address.
- What is Thandavababu Chelliah's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine and Medical Oncology.
- Does Thandavababu Chelliah accept Medicare assignment?
- Yes. Medicare's clinician data says Thandavababu Chelliah 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.
- What is the phone number for Thandavababu Chelliah?
- (718) 616-5356, as listed in official Medicare / NPI Registry data.
- What is Thandavababu Chelliah's NPI number?
- 1730100744. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thandavababu Chelliah works
Medicare's Facility Affiliation Data lists Thandavababu Chelliah at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- South Brooklyn HealthBrooklyn, NY · Acute Care Hospital · CCN 330196
Practice locations
Addresses where Thandavababu Chelliah is enrolled with Medicare (CMS data updated 2026-10-02).
- 2601 Ocean PkwyBrooklyn, NY 11235 (718) 616‑5356
Group practices
Medicare enrollment lists Thandavababu Chelliah as a member of this group (CMS data updated 2026-10-02).
- Physician Affiliate Group of New York PC1,225 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
- Medical Oncologyalso
Other hematologist-oncologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730100744 |
| 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