Quick answers
- Which hospitals does Keith Lasko work at?
- Medicare's official clinician data lists Keith Lasko at 1 hospital: Kaiser Foundation Hospital - South San Francisco. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Keith Lasko see patients?
- Medicare's clinician data lists 1 practice location in South San Francisco, CA. Call before your visit to confirm the address.
- What is Keith Lasko's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Keith Lasko accept Medicare assignment?
- Yes. Medicare's clinician data says Keith Lasko 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 Keith Lasko?
- (650) 742-2000, as listed in official Medicare / NPI Registry data.
- What is Keith Lasko's NPI number?
- 1225659907. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Keith Lasko works
Medicare's Facility Affiliation Data lists Keith Lasko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital - South San FranciscoSouth San Francisco, CA · Acute Care Hospital · CCN 050070
Practice locations
Addresses where Keith Lasko is enrolled with Medicare (CMS data updated 2026-10-02).
- 1200 El Camino RealSouth San Francisco, CA 94080 (650) 742‑2000
Group practices
Medicare enrollment lists Keith Lasko as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in South San Francisco
Clinicians with the same Medicare primary specialty in South San Francisco, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225659907 |
| 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