Quick answers
- Which hospitals does Jonathan Gershenson work at?
- Medicare's official clinician data lists Jonathan Gershenson at 1 hospital: Memorialcare Long Beach Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan Gershenson see patients?
- Medicare's clinician data lists 2 practice locations, including Long Beach, CA and Costa Mesa, CA. Call before your visit to confirm the address.
- What is Jonathan Gershenson's specialty?
- Medicare lists Nuclear Medicine as the primary specialty.
- Does Jonathan Gershenson accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan Gershenson 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 Jonathan Gershenson?
- (562) 933-1554, as listed in official Medicare / NPI Registry data.
- What is Jonathan Gershenson's NPI number?
- 1780046847. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan Gershenson works
Medicare's Facility Affiliation Data lists Jonathan Gershenson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorialcare Long Beach Medical CenterLong Beach, CA · Acute Care Hospital · CCN 050485
Practice locations
Addresses where Jonathan Gershenson is enrolled with Medicare (CMS data updated 2026-10-02).
- 2801 Atlantic AveLong Beach, CA 90806 (562) 933‑1554
- 722 Baker StCosta Mesa, CA 92626 (714) 557‑6300
Group practices
Medicare enrollment lists Jonathan Gershenson as a member of this group (CMS data updated 2026-10-02).
- Memorialcare Medical Foundation566 clinicians in the group
Specialties
- Nuclear Medicineprimary
Other nuclear medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Kansas City University Of Med & Biosciences, College Of Osteo Med |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780046847 |
| 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