Quick answers
- Which hospitals does Simon A. Humphries work at?
- Medicare's official clinician data lists Simon A. Humphries at 1 hospital: El Camino Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Simon A. Humphries see patients?
- Medicare's clinician data lists 1 practice location in Los Altos, CA. Call before your visit to confirm the address.
- What is Simon A. Humphries's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Simon A. Humphries accept Medicare assignment?
- Medicare's clinician data says Simon A. Humphries may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Simon A. Humphries offer telehealth?
- Medicare's clinician data says Simon A. Humphries offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Simon A. Humphries?
- (650) 917-6920, as listed in official Medicare / NPI Registry data.
- What is Simon A. Humphries's NPI number?
- 1023149440. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Simon A. Humphries works
Medicare's Facility Affiliation Data lists Simon A. Humphries at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- El Camino HealthMountain View, CA · Acute Care Hospital · CCN 050308
Practice locations
Addresses where Simon A. Humphries is enrolled with Medicare (CMS data updated 2026-10-02).
- 811 Altos Oaks Dr, Suite 2Los Altos, CA 94024 (650) 917‑6920
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Los Altos
Clinicians with the same Medicare primary specialty in Los Altos, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1023149440 |
| 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