Quick answers
- Which hospitals does Diane Tam Singer work at?
- Medicare's official clinician data lists Diane Tam Singer at 4 hospitals: Providence Cedars Sinai Tarzana Medical Center, Providence Little Co of Mary Medical Center San Pedro, Providence Little Company of Mary Medical Center Torrance and Providence St. Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Diane Tam Singer see patients?
- Medicare's clinician data lists 1 practice location in Torrance, CA. Call before your visit to confirm the address.
- What is Diane Tam Singer's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Diane Tam Singer accept Medicare assignment?
- Yes. Medicare's clinician data says Diane Tam Singer 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 Diane Tam Singer?
- (310) 225-3244, as listed in official Medicare / NPI Registry data.
- What is Diane Tam Singer's NPI number?
- 1972539047. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Diane Tam Singer works
Medicare's Facility Affiliation Data lists Diane Tam Singer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Cedars Sinai Tarzana Medical CenterTarzana, CA · Acute Care Hospital · CCN 050761
- Providence Little Co of Mary Medical Center San PedroSan Pedro, CA · Acute Care Hospital · CCN 050078
- Providence Little Company of Mary Medical Center TorranceTorrance, CA · Acute Care Hospital · CCN 050353
- Providence St. Joseph HospitalOrange, CA · Acute Care Hospital · CCN 050069
Practice locations
Addresses where Diane Tam Singer is enrolled with Medicare (CMS data updated 2026-10-02).
- 4101 Torrance BlvdTorrance, CA 90503 (310) 225‑3244
Group practices
Medicare enrollment lists Diane Tam Singer as a member of this group (CMS data updated 2026-10-02).
- Affiliated Pathologists Medical Group, Inc.45 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Torrance
Clinicians with the same Medicare primary specialty in Torrance, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972539047 |
| 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