Quick answers
- Which hospitals does Tamer K. Rezk work at?
- Medicare's official clinician data lists Tamer K. Rezk at 2 hospitals: PIH Health Downey Hospital and PIH Health Hospital-Whittier. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Tamer K. Rezk see patients?
- Medicare's clinician data lists 4 practice locations, including Downey, CA, Whittier, CA and Laguna Niguel, CA. Call before your visit to confirm the address.
- What is Tamer K. Rezk's specialty?
- Medicare lists Addiction Medicine as the primary specialty.
- Does Tamer K. Rezk accept Medicare assignment?
- Yes. Medicare's clinician data says Tamer K. Rezk 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 Tamer K. Rezk offer telehealth?
- Medicare's clinician data says Tamer K. Rezk offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Tamer K. Rezk?
- (562) 789-5456, as listed in official Medicare / NPI Registry data.
- What is Tamer K. Rezk's NPI number?
- 1457810285. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Tamer K. Rezk works
Medicare's Facility Affiliation Data lists Tamer K. Rezk at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- PIH Health Downey HospitalDowney, CA · Acute Care Hospital · CCN 050393
- PIH Health Hospital-WhittierWhittier, CA · Acute Care Hospital · CCN 050169
Practice locations
Addresses where Tamer K. Rezk is enrolled with Medicare (CMS data updated 2026-10-02).
- 11411 Brookshire AveDowney, CA 90241 (562) 789‑5456
- 12401 Washington BlvdWhittier, CA 90602 (562) 698‑0811
- 25461 Rancho Niguel RdLaguna Niguel, CA 92677 (844) 254‑6382
- 29100 Portola Pkwy, Suite BLake Forest, CA 92630 (844) 254‑6382
Group practices
Medicare enrollment lists Tamer K. Rezk as a member of these groups (CMS data updated 2026-10-02).
- PIH Health Physicians622 clinicians in the group
- Portola Medical Services PC22 clinicians in the group
Specialties
- Addiction Medicineprimary
Other addiction medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1457810285 |
| 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