Quick answers
- Which hospitals does Tahseen N. Shareef work at?
- Medicare's official clinician data lists Tahseen N. Shareef at 2 hospitals: Loma Linda University Medical Center and Mountains Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Tahseen N. Shareef see patients?
- Medicare's clinician data lists 1 practice location in Chino Hills, CA. Call before your visit to confirm the address.
- What is Tahseen N. Shareef's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Tahseen N. Shareef accept Medicare assignment?
- Yes. Medicare's clinician data says Tahseen N. Shareef 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 Tahseen N. Shareef?
- (909) 203-3766, as listed in official Medicare / NPI Registry data.
- What is Tahseen N. Shareef's NPI number?
- 1669491809. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Tahseen N. Shareef works
Medicare's Facility Affiliation Data lists Tahseen N. Shareef at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Loma Linda University Medical CenterLoma Linda, CA · Acute Care Hospital · CCN 050327
- Mountains Community HospitalLake Arrowhead, CA · Critical Access Hospital · CCN 051312
Practice locations
Addresses where Tahseen N. Shareef is enrolled with Medicare (CMS data updated 2026-10-02).
- 15944 Los Serranos Country Club Dr, Suite 120Chino Hills, CA 91709 (909) 203‑3766
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Chino Hills
Clinicians with the same Medicare primary specialty in Chino Hills, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Pennsylvania |
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669491809 |
| 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