Quick answers
- Where does Abhishek Kumar see patients?
- Medicare's clinician data lists 2 practice locations, including Downey, CA and Long Beach, CA. Call before your visit to confirm the address.
- What is Abhishek Kumar's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Abhishek Kumar accept Medicare assignment?
- Yes. Medicare's clinician data says Abhishek Kumar 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 Abhishek Kumar?
- (562) 291-6580, as listed in official Medicare / NPI Registry data.
- What is Abhishek Kumar's NPI number?
- 1043847114. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Abhishek Kumar is enrolled with Medicare (CMS data updated 2026-10-02).
- 10226 Lakewood Blvd, Apt BDowney, CA 90241 (562) 291‑6580
- 2440 E S StLong Beach, CA 90805 (562) 633‑0836
Group practices
Medicare enrollment lists Abhishek Kumar as a member of this group (CMS data updated 2026-10-02).
- The Oncology Institute Ca, a Professional Corporation113 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043847114 |
| 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
- 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