Quick answers
- Which hospitals does Leslie S. Tim work at?
- Medicare's official clinician data lists Leslie S. Tim at 5 hospitals: Alta Bates Summit Medical Center, Alta Bates Summit Medical Center - Alta Bates Camp…, John Muir Medical Center - Walnut Creek Campus, Stanford Health Care and Stanford Health Care Tri-Valley. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Leslie S. Tim see patients?
- Medicare's clinician data lists 3 practice locations, including Menlo Park, CA, Pleasanton, CA and Emeryville, CA. Call before your visit to confirm the address.
- What is Leslie S. Tim's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Leslie S. Tim accept Medicare assignment?
- Yes. Medicare's clinician data says Leslie S. Tim 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 Leslie S. Tim offer telehealth?
- Medicare's clinician data says Leslie S. Tim offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Leslie S. Tim?
- (650) 498-6500, as listed in official Medicare / NPI Registry data.
- What is Leslie S. Tim's NPI number?
- 1811956618. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Leslie S. Tim works
Medicare's Facility Affiliation Data lists Leslie S. Tim at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · CCN 050043
- Alta Bates Summit Medical Center - Alta Bates Camp…Berkeley, CA · Acute Care Hospital · CCN 050305
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
- Stanford Health CareStanford, CA · Acute Care Hospital · CCN 050441
- Stanford Health Care Tri-ValleyPleasanton, CA · Acute Care Hospital · CCN 050283
Practice locations
Addresses where Leslie S. Tim is enrolled with Medicare (CMS data updated 2026-10-02).
- 1300 Crane StMenlo Park, CA 94025 (650) 498‑6500
- 4725 1st St, Suite 100Pleasanton, CA 94566 (925) 462‑7060
- 6121 Hollis StEmeryville, CA 94608
Group practices
Medicare enrollment lists Leslie S. Tim as a member of this group (CMS data updated 2026-10-02).
- University Healthcare Alliance327 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Menlo Park
Clinicians with the same Medicare primary specialty in Menlo Park, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1811956618 |
| 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