Quick answers
- Which hospitals does Maher Tama work at?
- Medicare's official clinician data lists Maher Tama at 5 hospitals: John Muir Medical Center - Concord Campus, Loma Linda University Medical Center, Loyola Gottlieb Memorial Hospital, Loyola University Medical Center and Riverside University Health System-Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Maher Tama see patients?
- Medicare's clinician data lists 6 practice locations, including Loma Linda, CA, Walnut Creek, CA and Maywood, IL. Call before your visit to confirm the address.
- What is Maher Tama's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Maher Tama accept Medicare assignment?
- Yes. Medicare's clinician data says Maher Tama 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 Maher Tama?
- (925) 941-4058, as listed in official Medicare / NPI Registry data.
- What is Maher Tama's NPI number?
- 1326393737. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Maher Tama works
Medicare's Facility Affiliation Data lists Maher Tama at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · CCN 050496
- Loma Linda University Medical CenterLoma Linda, CA · Acute Care Hospital · CCN 050327
- Loyola Gottlieb Memorial HospitalMelrose Park, IL · Acute Care Hospital · CCN 140008
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · CCN 140276
- Riverside University Health System-Medical CenterMoreno Valley, CA · Acute Care Hospital · CCN 050292
Practice locations
Addresses where Maher Tama is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 11234 Anderson StLoma Linda, CA 92354
- 1479 Ygnacio Valley Rd, Suite 150Walnut Creek, CA 94598 (925) 941‑4058
- 2160 S 1st AveMaywood, IL 60153 (708) 216‑8372
- 26520 Cactus AveMoreno Valley, CA 92555
- 26520 Cactus Ave, Suite 2021Moreno Valley, CA 92555 (951) 486‑5700
Group practices
Medicare enrollment lists Maher Tama as a member of these groups (CMS data updated 2026-10-02).
- Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group
- Loyola University Medical Center953 clinicians in the group
- John Muir Physician Network494 clinicians in the group
- Chaparral Medical Group Inc65 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Loma Linda
Clinicians with the same Medicare primary specialty in Loma Linda, CA — not a recommendation.
Clinician information
| Graduation year | 2011 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326393737 |
| 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